OpenAI API Models GPT-5.5 Pro
Is OpenAI API Models GPT-5.5 Pro still supported?
Yes
OpenAI API Models GPT-5.5 Pro is supported, and no end-of-life date has been announced yet.
- Released
- Apr 23, 2026
- End of life
- Not announced
- ID
gpt-5.5-pro- Aliases
- gpt-5.5-pro-2026-04-23
Quick answers
- Is OpenAI API Models GPT-5.5 Pro still supported?
- Yes. OpenAI API Models GPT-5.5 Pro is supported, and no end-of-life date has been announced yet.
- When is OpenAI API Models GPT-5.5 Pro end of life?
- No end-of-life date has been announced for OpenAI API Models GPT-5.5 Pro yet. This page updates automatically when one is.
- When was OpenAI API Models GPT-5.5 Pro released?
- OpenAI API Models GPT-5.5 Pro was released on Apr 23, 2026.
Other OpenAI API Models branches
All 91 →- GPT-Realtime-2.1 Mini Supported
- GPT-Realtime-2 Supported
- GPT-Realtime-Translate Supported
- GPT-Realtime-Whisper Supported
- Chat Latest Supported
- GPT-5.5 Supported
- GPT-5.5 Pro Supported
- GPT-Image-2 Supported
- GPT-5.4 Mini Supported
- GPT-5.4 nano Deprecated support
- GPT-5.4 Supported
- GPT-5.4 Pro Supported
- GPT-5.3 Chat End of life
Keep track
Official release policy · Checked 6 minutes ago