RETIRING IN 152 DAYS
Sunset scheduled for 2027-04-01, published in the provider's own documentation. The provider names gpt-6-sol as the replacement. The identifier still resolves today. Sources disagree on: context_tokens.
state=dying sunset=2027-04-01 days_remaining=152 severity=high sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-6-sol corroborated=yes divergent_fields=context_tokens checked=2026-10-31 05:09Z
openai/gpt-5.3-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-5.3-codex | — | — | — | — | 2027-04-01 |
| litellm | azure/gpt-5.3-codex | 272,000 | 128,000 | $1.75 | $14 | 2027-04-01 |
| openrouter | openai/gpt-5.3-codex | 400,000 | 128,000 | $1.75 | $14 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| high | modified | chatgpt/gpt-5.3-codex: capabilities lost minimal_reasoning_effort; gained none_reasoning_effort, xhigh_reasoning_effort | 2026-10-19 |
| high | modified | gpt-5.3-codex: capabilities lost minimal_reasoning_effort; gained none_reasoning_effort, xhigh_reasoning_effort | 2026-10-19 |
| low | modified | gpt-5.3-codex: capabilities gained tool_search | 2026-10-15 |
| critical | deprecated | gpt-5.3-codex: deprecation announced for 2026-10-01 (date already passed) | 2026-10-13 |
| low | modified | github_copilot/gpt-5.3-codex: capabilities gained reasoning | 2026-10-10 |
| medium | removed | [one catalog only — docs, litellm, openrouter still list it] openrouter/openai/gpt-5.3-codex is no longer listed by this source — calls to it are expected to fail | 2026-10-09 |
| medium | deprecated | gpt-5.3-codex: deprecation announced for 2027-04-01 — in 181 days | 2026-10-02 |
| low | added | new model gpt-5.3-codex | 2026-10-02 |
| medium | deprecated | gpt-5.3-codex: retires 2027-04-01 (in 181 days) | 2026-10-02 |
| low | modified | openai/gpt-5.3-codex: capabilities gained verbosity | 2026-10-01 |
| high | modified | openai/gpt-5.3-codex: capabilities lost verbosity | 2026-10-01 |
| low | modified | openai/gpt-5.3-codex: capabilities gained verbosity | 2026-09-30 |
| info | repriced | github_copilot/gpt-5.3-codex: input_price_per_mtok n/a to $1.75/Mtok | 2026-09-29 |
| info | repriced | github_copilot/gpt-5.3-codex: output_price_per_mtok n/a to $14.00/Mtok | 2026-09-29 |
| info | repriced | github_copilot/gpt-5.3-codex: cache_read_price_per_mtok n/a to $0.17/Mtok | 2026-09-29 |
| low | modified | chatgpt/gpt-5.3-codex: capabilities gained minimal_reasoning_effort, reasoning | 2026-09-26 |
| low | modified | openrouter/openai/gpt-5.3-codex: capabilities gained web_search | 2026-09-19 |
| low | modified | openrouter/openai/gpt-5.3-codex: context_tokens raised 272,000 to 400,000 | 2026-09-18 |
| medium | deprecated | azure/eu/gpt-5.3-codex: deprecation announced for 2027-08-24 — in 340 days | 2026-09-18 |
| medium | deprecated | azure/us/gpt-5.3-codex: deprecation announced for 2027-08-24 — in 340 days | 2026-09-18 |
| medium | deprecated | azure/eu/gpt-5.3-codex: retires 2027-08-24 (in 340 days) | 2026-09-18 |
| medium | deprecated | azure/us/gpt-5.3-codex: retires 2027-08-24 (in 340 days) | 2026-09-18 |
| low | added | new model azure/eu/gpt-5.3-codex | 2026-09-16 |
| low | added | new model azure/us/gpt-5.3-codex | 2026-09-16 |
| low | added | new model aihubmix/gpt-5.3-codex (400,000 ctx) | 2026-09-16 |
| low | added | new model openrouter/openai/gpt-5.3-codex (272,000 ctx) | 2026-09-06 |
| medium | deprecated | azure/gpt-5.3-codex: deprecation announced for 2027-08-24 — in 377 days | 2026-08-12 |
| medium | deprecated | azure/gpt-5.3-codex: retires 2027-08-24 (in 377 days) | 2026-08-12 |