Deprecated Model Checker
Check whether an AI model ID is active, deprecated, retired, zombie, unavailable or risky to rely on in production.
Quick answer
A deprecated model checker helps developers identify whether a model ID is still safe to use. Model IDs can move from active to deprecated, retired, zombie or unavailable while an app keeps calling them.
Zombify checks lifecycle status across OpenAI, Anthropic, Google Gemini and OpenRouter, then flags models that may break production or need migration work.
What should a model checker tell you?
- Provider
- Model ID
- Current lifecycle status
- Deprecation date if known
- Retirement or shutdown date if known
- Replacement model if known
- Source confidence
- Whether it is safe to keep using in production
Why this matters
Hardcoded model IDs are production dependencies. They sit in environment variables, config files and routing logic, then keep being called long after a provider publishes a deprecation notice.
Provider notices are scattered across docs, changelogs, APIs and release notes. A shutdown date can pass quietly, then suddenly your feature is asking a dead model for help.
How Zombify helps
- Use the free model checker for one-off model ID checks.
- Paste .env content in the browser to detect model IDs before deploys.
- Browse the Graveyard for deprecated, retired and zombie models.
- Watch your stack for lifecycle alerts when paid monitoring is active.
- Share model stack status pages with clients, teams or stakeholders.