RETIRING IN 37 DAYS
Sunset scheduled for 2026-10-23, published in the provider's own documentation. The provider names gpt-5.6-terra as the replacement. The identifier still resolves today.
state=dying sunset=2026-10-23 days_remaining=37 severity=high sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.6-terra corroborated=yes divergent_fields=none checked=2026-09-16 03:02Z
openai/o4-mini
Vendor: openai. Tracked by 3 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| docs | o4-mini | — | — | — | — | 2026-10-23 |
| litellm | azure/o4-mini | 200,000 | 100,000 | $1.1 | $4.4 | 2026-10-23 |
| openrouter | openai/o4-mini | 200,000 | 100,000 | $1.1 | $4.4 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| high | deprecated | azure/o4-mini: deprecation announced for 2026-11-19 — in 67 days | 2026-09-13 |
| high | deprecated | azure/o4-mini: retires 2026-11-19 (in 67 days) | 2026-09-13 |
| low | added | new model openrouter/openai/o4-mini (200,000 ctx) | 2026-09-06 |
| high | deprecated | azure/o4-mini: deprecation announced for 2026-10-16 — in 56 days | 2026-08-21 |
| high | deprecated | azure/o4-mini: retires 2026-10-16 (in 56 days) | 2026-08-21 |
| high | deprecated | o4-mini: deprecation announced for 2026-10-23 — in 72 days | 2026-08-12 |
| info | deprecated | o4-mini: deprecation announced for 2026-04-22 (date already passed) | 2026-08-05 |
| high | deprecated | o4-mini: retires 2026-10-23 (in 83 days) | 2026-08-01 |
| low | added | new model o4-mini | 2026-08-01 |
| medium | removed | [one catalog only — docs, litellm, openrouter still list it] o4-mini is no longer listed by this source — calls to it are expected to fail | 2026-08-01 |
| info | modified | [source artifact — 6 providers changed identically on the same day] o4-mini: capabilities lost service_tier | 2026-06-27 |