DEPRECATED
Retired 2026-07-23 — 100 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=-100 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=2026-10-31 11:10Z
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 | $1.375 | $11 | 2026-07-23 |
| openrouter | openai/gpt-5.1-codex | 400,000 | 128,000 | $1.25 | $10 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| low | added | new model gpt-5.1-codex | 2026-10-23 |
| medium | removed | [one catalog only — litellm, openrouter still list it] gpt-5.1-codex is no longer listed by this source — calls to it are expected to fail | 2026-10-17 |
| medium | removed | [one catalog only — docs, litellm, openrouter still list it] openrouter/openai/gpt-5.1-codex is no longer listed by this source — calls to it are expected to fail | 2026-10-10 |
| low | modified | openai/gpt-5.1-codex: capabilities gained verbosity | 2026-10-01 |
| high | modified | openai/gpt-5.1-codex: capabilities lost verbosity | 2026-10-01 |
| low | modified | openai/gpt-5.1-codex: capabilities gained verbosity | 2026-09-30 |
| info | deprecated | gpt-5.1-codex: deprecation announced for 2026-07-23 (date already passed) | 2026-09-25 |
| low | added | new model gpt-5.1-codex (400,000 ctx) | 2026-09-24 |
| medium | removed | [one catalog only — docs, litellm, openrouter still list it] gpt-5.1-codex is no longer listed by this source — calls to it are expected to fail | 2026-09-23 |
| low | modified | openrouter/openai/gpt-5.1-codex: capabilities gained web_search | 2026-09-19 |
| info | repriced | azure/eu/gpt-5.1-codex: input_price_per_mtok $1.38/Mtok to $1.38/Mtok | 2026-09-16 |
| info | repriced | azure/eu/gpt-5.1-codex: cache_read_price_per_mtok $0.14/Mtok to $0.14/Mtok | 2026-09-16 |
| info | repriced | azure/us/gpt-5.1-codex: input_price_per_mtok $1.38/Mtok to $1.38/Mtok | 2026-09-16 |
| info | repriced | azure/us/gpt-5.1-codex: cache_read_price_per_mtok $0.14/Mtok to $0.14/Mtok | 2026-09-16 |
| low | added | new model openrouter/openai/gpt-5.1-codex (400,000 ctx) | 2026-09-06 |
| medium | deprecated | azure/eu/gpt-5.1-codex: deprecation announced for 2027-05-15 — in 267 days | 2026-08-21 |
| medium | deprecated | azure/global/gpt-5.1-codex: deprecation announced for 2027-05-15 — in 267 days | 2026-08-21 |
| medium | deprecated | azure/gpt-5.1-codex: deprecation announced for 2027-05-15 — in 267 days | 2026-08-21 |
| medium | deprecated | azure/us/gpt-5.1-codex: deprecation announced for 2027-05-15 — in 267 days | 2026-08-21 |
| medium | deprecated | azure/eu/gpt-5.1-codex: retires 2027-05-15 (in 267 days) | 2026-08-21 |
| medium | deprecated | azure/global/gpt-5.1-codex: retires 2027-05-15 (in 267 days) | 2026-08-21 |
| medium | deprecated | azure/gpt-5.1-codex: retires 2027-05-15 (in 267 days) | 2026-08-21 |
| medium | deprecated | azure/us/gpt-5.1-codex: retires 2027-05-15 (in 267 days) | 2026-08-21 |
| critical | deprecated | gpt-5.1-codex: deprecation announced for 2026-07-23 (date already passed) | 2026-08-12 |
| 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 |