DEPRECATED
Retired 2026-07-23 — 10 days ago. Requests to this identifier are expected to fail. The provider names gpt-5.6-sol as the replacement. Sources disagree on: context_tokens, input_price_per_mtok, output_price_per_mtok.
state=dead sunset=2026-07-23 days_remaining=-10 severity=critical sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.6-sol corroborated=yes divergent_fields=context_tokens,input_price_per_mtok,output_price_per_mtok checked=2026-08-02 01:41Z
openai/gpt-5.1-codex
Vendor: openai. Tracked by 3 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| docs | gpt-5.1-codex | — | — | — | — | 2026-07-23 |
| litellm | azure/eu/gpt-5.1-codex | 272,000 | 128,000 | $1.38 | $11 | — |
| openrouter | openai/gpt-5.1-codex | 400,000 | 128,000 | $1.25 | $10 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| critical | deprecated | gpt-5.1-codex: retires 2026-07-23 (9 days ago) | 2026-08-01 |
| low | added | new model gpt-5.1-codex | 2026-08-01 |