live registry · MODEL AFTERLIFE

The Graveyard

The Graveyard is where dying models get named.

The Zombify Graveyard is a public record of AI models that are deprecated, retired, zombie, unavailable or risky to rely on in production.

Use it to spot model IDs that may still be hiding in old code, templates, agents, demos, staging projects or client work, but should no longer be trusted without a migration plan.

93 flagged 3 deprecated 87 dead 3 zombies 0 shutdown passed

Warning wall

Use the Graveyard to

  • check whether an old model ID is still safe
  • spot retired or deprecated models before migration work starts
  • understand replacement paths where known
  • explain lifecycle risk to clients, teammates or stakeholders
Officially warned. Migrate before it gets buried.
gpt-3.5-turbo-1106 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

deprecated September 28, 2026 proof
claude-opus-4-1 anthropic

Synced from Anthropic lifecycle source for canonical model claude-opus-4-1-20250805. This registry row is an alias/search row and should carry the same lifecycle risk.

deprecated August 5, 2026 claude-opus-4-8 proof
claude-opus-4-1-20250805 anthropic

Parsed from Anthropic model deprecations page.

deprecated August 5, 2026 claude-opus-4-8 proof
Retired by provider. Treat as buried.
o1 openai

Deprecated OpenAI reasoning model. Replace with o3-pro for a current reasoning-focused migration path. Verify output behaviour, latency and cost before shipping. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 o3-pro proof
gpt-4o-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4-completions openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4-turbo-2024-04-09 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4-turbo-completions openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4-1106-preview openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4.1 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4.1-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4.1-nano openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4.1-nano-2025-04-14 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4o-2024-05-13 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4o-mini-search-preview-2025-03-11 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-4o-search-preview-2025-03-11 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-5-nano openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-5.2-codex openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o1-2024-12-17 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o1-pro openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o1-pro-2025-03-19 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o3 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o3-deep-research openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o3-deep-research-2025-06-26 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o4-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o4-mini-deep-research openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
o4-mini-deep-research-2025-06-26 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
gpt-3.5-turbo-completions openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died July 23, 2026 proof
claude-sonnet-4-20250514 anthropic

Parsed from Anthropic model deprecations page. Lifecycle reconciled automatically because the shutdown date has passed.

died June 15, 2026 claude-sonnet-4-6 proof
claude-opus-4 anthropic

Synced from Anthropic lifecycle source for canonical model claude-opus-4-20250514. This registry row is an alias/search row and should carry the same lifecycle risk. Synced from canonical lifecycle record claude-opus-4-20250514. This registry row is an alias/search row and should carry the same lifecycle risk.

died June 15, 2026 claude-opus-4-7 proof
claude-sonnet-4 anthropic

Synced from Anthropic lifecycle source for canonical model claude-sonnet-4-20250514. This registry row is an alias/search row and should carry the same lifecycle risk. Synced from canonical lifecycle record claude-sonnet-4-20250514. This registry row is an alias/search row and should carry the same lifecycle risk.

died June 15, 2026 claude-sonnet-4-6 proof
claude-opus-4-20250514 anthropic

Parsed from Anthropic model deprecations page. Lifecycle reconciled automatically because the shutdown date has passed.

died June 15, 2026 claude-opus-4-7 proof
gpt-4-0125-preview openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died May 12, 2026 proof
gpt-4-turbo-preview-completions openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died May 12, 2026 proof
gpt-3.5-turbo-instruct openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died May 12, 2026 proof
gpt-4-turbo-preview openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died May 12, 2026 proof
claude-3-haiku-20240307 anthropic

Parsed from Anthropic model deprecations page.

died April 20, 2026 claude-haiku-4-5-20251001 proof
claude-3-7-sonnet-20250219 anthropic

Parsed from Anthropic model deprecations page.

died February 19, 2026 claude-sonnet-4-6 proof
claude-haiku-3 anthropic

Discovered from official Anthropic display name "Claude Haiku 3". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died February 19, 2026 proof
claude-3-5-haiku-20241022 anthropic

Parsed from Anthropic model deprecations page.

died February 19, 2026 claude-haiku-4-5-20251001 proof
claude-3-opus-20240229 anthropic

Parsed from Anthropic model deprecations page.

died January 5, 2026 claude-opus-4-8 proof
claude-haiku-3-5 anthropic

Discovered from official Anthropic display name "Claude Haiku 3.5". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died December 19, 2025 proof
gpt-5-codex-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died November 17, 2025 proof
claude-sonnet-3 anthropic

Discovered from official Anthropic display name "Claude Sonnet 3". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died October 28, 2025 proof
claude-sonnet-3-7 anthropic

Discovered from official Anthropic display name "Claude Sonnet 3.7". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died October 28, 2025 proof
claude-3-5-sonnet-20240620 anthropic

Parsed from Anthropic model deprecations page.

died October 28, 2025 claude-sonnet-4-6 proof
claude-3-5-sonnet-20241022 anthropic

Parsed from Anthropic model deprecations page.

died October 28, 2025 claude-sonnet-4-6 proof
gpt-3.5-turbo openai

Retired GPT-3.5 Turbo model. Replace with GPT-5 mini for cost-sensitive, low-latency chat workloads. Lifecycle dates backfilled from approved official-doc registry candidate.

died September 1, 2025 gpt-5-mini proof
claude-sonnet-3-5 anthropic

Discovered from official Anthropic display name "Claude Sonnet 3.5". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died August 13, 2025 proof
claude-3-sonnet-20240229 anthropic

Parsed from Anthropic model deprecations page.

died July 21, 2025 claude-sonnet-4-6 proof
claude-2-1 anthropic

Parsed from Anthropic model deprecations page.

died July 21, 2025 claude-opus-4-8 proof
claude-2-0 anthropic

Parsed from Anthropic model deprecations page.

died July 21, 2025 claude-opus-4-8 proof
gpt-4 openai

Retired GPT-4 model. Replace with GPT-5.5 Pro for the highest current OpenAI capability in this registry, or GPT-5 mini for lower-cost workloads. Lifecycle dates backfilled from approved official-doc registry candidate.

died July 1, 2025 gpt-5.5-pro proof
claude-opus-3 anthropic

Discovered from official Anthropic display name "Claude Opus 3". Canonical model_id generated by Anthropic convention: dots converted to hyphens. Admin must verify before approval. Also found in: https://platform.claude.com/docs/en/release-notes/overview Restored from rejected-candidate audit: official Anthropic docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 30, 2025 proof
o3-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 26, 2025 proof
o3-mini-2025-01-31 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 26, 2025 proof
o4-mini-2025-04-16 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 26, 2025 proof
o1-preview openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 10, 2025 proof
gpt-3.5-turbo-0613 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 6, 2025 proof
gpt-3.5-turbo-16k-0613 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 6, 2025 proof
gpt-4-0314 openai

Zombie GPT-4 snapshot. Replace with GPT-5 mini for a safer current migration path. Lifecycle reconciled automatically because the shutdown date has passed.

died June 1, 2025 gpt-5-mini proof
gpt-4.5-preview openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died April 28, 2025 proof
gemini-1.0-pro google

Replaced by Gemini 1.5 Pro. Lifecycle reconciled automatically because the shutdown date has passed.

died April 9, 2025 gemini-1.5-pro proof
gpt-4-turbo openai

Zombie GPT-4 Turbo model. Replace with GPT-5 mini for a safer current migration path. GPT-4o is deprecated and should not be used as the replacement. Lifecycle dates backfilled from approved official-doc registry candidate. Lifecycle reconciled automatically because the shutdown date has passed.

died April 1, 2025 gpt-5-mini proof
gpt-3 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-4-0613 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-4-0613-completions openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5-chat-latest openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5-codex openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.1-chat-latest openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.1-codex openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.1-codex-max openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.1-codex-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.3-chat-latest openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-5.4-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Also found in: https://developers.openai.com/api/docs/models Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-3.5 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
gpt-3.5-turbo-0125 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died March 11, 2025 proof
claude-instant-1-0 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-1-3 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-1-0 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-1-1 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-instant-1.2 anthropic

Retired Claude Instant model. Replace with Claude Haiku 4.5 for fast, lower-cost workloads, or Claude Sonnet 4.6 for stronger general capability.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-1-2 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-instant-1-1 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
claude-instant-1-2 anthropic

Parsed from Anthropic model deprecations page.

died November 6, 2024 claude-haiku-4-5-20251001 proof
gpt-4-32k-0314 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died October 28, 2024 proof
gpt-4-32k-0613 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died October 28, 2024 proof
o1-mini openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died October 1, 2024 proof
gpt-4-32k openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died August 29, 2024 proof
gpt-3.5-turbo-0301 openai

Discovered on official OpenAI deprecations page. Deprecation entries override model-list presence. Dates and replacement were parsed conservatively from nearby text and require admin verification before approval. Restored from rejected-candidate audit: high-confidence official OpenAI docs lifecycle evidence. Previous rejection treated as review/process error. Lifecycle dates backfilled from approved official-doc registry candidate.

died June 13, 2023 proof
Still visible somewhere. Do not trust it.
gemini-2.0-flash-lite-001 google

Legacy Gemini 2.0 Flash Lite snapshot. Replace with Gemini 2.5 Flash Lite for a current lightweight, low-latency migration path. Verify model behaviour, pricing and API compatibility before shipping.

gemini-2.5-flash-lite proof
claude-2.1 anthropic

Legacy Claude model. Replace with a current Claude 4 family model. Default migration path set to Claude Sonnet 4.6 for balanced capability, speed, and cost.

claude-sonnet-4-6 proof
gpt-3.5-turbo-16k openai

Listed in OpenAI deprecations. Already shut down. Replace with GPT-5 Mini for a current general-purpose migration path. Verify context, output and pricing differences before shipping.

gpt-5-mini proof

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