AI models retired or deprecated in October 2026
· covers October 2026
49 models have a retirement date inside the next four months as of October 2026. Each row is sourced from the provider’s own deprecation notice.
Which AI models are being retired?
| Provider | Model | Shutdown | Replacement |
|---|---|---|---|
| Anthropic | claude-opus-4-5-20251101 | 2026-11-24 | — |
| Anthropic | claude-sonnet-4-5-20250929 | 2026-11-30 | claude-sonnet-5-5 |
| OpenAI | gpt-image-1-mini | 2026-12-01 | gpt-image-2.5-sunburst or gpt-image-2.5-flare |
| OpenAI | gpt-image-1.5 | 2026-12-01 | gpt-image-2.5-sunburst or gpt-image-2.5-flare |
| OpenAI | chatgpt-image-latest | 2026-12-01 | gpt-image-2.5-sunburst or gpt-image-2.5-flare |
| OpenAI | gpt-image-1.5-2025-12-16 | 2026-12-01 | gpt-image-2.5-sunburst or gpt-image-2.5-flare |
| OpenAI | gpt-5 | 2026-12-11 | gpt-5.6-sol |
| OpenAI | gpt-5-mini | 2026-12-11 | gpt-5.6-terra |
| OpenAI | gpt-5-nano | 2026-12-11 | gpt-5.6-luna |
| OpenAI | gpt-5-pro | 2026-12-11 | gpt-5.6-sol (reasoning.mode: pro) |
| OpenAI | o3 | 2026-12-11 | gpt-5.6-sol |
| OpenAI | o3-pro | 2026-12-11 | gpt-5.6-sol (reasoning.mode: pro) |
| OpenAI | gpt-5-2025-08-07 | 2026-12-11 | gpt-5.6-sol |
| OpenAI | gpt-5-mini-2025-08-07 | 2026-12-11 | gpt-5.6-terra |
| OpenAI | gpt-5-nano-2025-08-07 | 2026-12-11 | gpt-5.6-luna |
| OpenAI | gpt-5-pro-2025-10-06 | 2026-12-11 | gpt-5.6-sol (reasoning.mode: pro) |
| OpenAI | o3-2025-04-16 | 2026-12-11 | gpt-5.6-sol |
| OpenAI | o3-pro-2025-06-10 | 2026-12-11 | gpt-5.6-sol (reasoning.mode: pro) |
| OpenAI | tts-1 | 2027-01-06 | gpt-realtime-2.1-mini |
| OpenAI | tts-1-hd | 2027-01-06 | gpt-realtime-2.1-mini |
| OpenAI | gpt-4o-mini-tts | 2027-01-06 | gpt-realtime-2.1-mini |
| OpenAI | gpt-4o-mini-tts-2025-03-20 | 2027-01-06 | gpt-realtime-2.1-mini |
| OpenAI | gpt-4o-mini-tts-2025-12-15 | 2027-01-06 | gpt-realtime-2.1-mini |
| OpenAI | GPT-4o | 2027-01-14 | gpt-6-luna |
| OpenAI | gpt-4o-mini | 2027-01-14 | gpt-6-luna |
Per-provider migration detail: the deprecation calendar, which also shows our measured latency for the provider you would be migrating to.
Same series: Previous: September 2026
Other measurements from the same period
- Which AI API SDKs developers installed in October 2026
- AI API outages in October 2026: who went down, and who admitted it
- Who changed AI API prices in October 2026
This post is a snapshot. The live figures behind it: / · all posts