GPT-3.5 turbo 1106 retirement date: September 28, 2026
Retired on September 28, 2026; requests to gpt-3.5-turbo-1106 now fail.
- Provider
- OpenAI
- Model IDs affected
gpt-3.5-turbo-1106- Announced
- September 26, 2025
- Shutdown date
- September 28, 2026
- Replacement
- gpt-5.6-terra
- Platforms
- Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform's own retirement schedule.
- Source
- Official OpenAI deprecations page (data last changed 2026-11-02, re-checked daily)
Migrating from GPT-3.5 turbo 1106 to GPT-5.6 Terra
Not yet reviewed. We haven't written model-specific migration notes for GPT-3.5 turbo 1106 yet. Start with the provider's official guidance and the replacement's model page, and use this general checklist:
- Search your code, config and environment variables for
gpt-3.5-turbo-1106. - Re-run your evaluation set against gpt-5.6-terra before switching traffic.
- Recount tokens with the new model's tokenizer and re-check
max_tokens, context fit and cost. - Check tool calling, structured output and stop sequences on your real prompts.
- Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform's own retirement schedule.
Check your code before Sep 28
Also shutting down on September 28, 2026
- babbage-002
babbage-002 - davinci-002
davinci-002 - GPT-3.5 turbo instruct
gpt-3.5-turbo-instruct
All model retirements · All OpenAI deprecations
FAQ
When was GPT-3.5 turbo 1106 retired?
GPT-3.5 turbo 1106 (gpt-3.5-turbo-1106) was retired on the OpenAI API on September 28, 2026, according to the official OpenAI API deprecations page. Requests to it now fail.
What should I use instead of gpt-3.5-turbo-1106?
The recommended replacement is gpt-5.6-terra.
What happens to gpt-3.5-turbo-1106 requests after the shutdown date?
After a model is retired, API requests to it return an error. Move traffic to the replacement and test it on your own prompts before the date.
Does this date apply to Amazon Bedrock, Vertex AI or Azure?
Dates apply to the OpenAI API. Fine-tuned models follow the same shutdown schedule as their base model. If you use OpenAI models through another platform, check that platform’s own retirement schedule.