RETIRING IN 19 DAYS
Sunset scheduled for 2026-11-19, published in the provider's own documentation. The provider names gpt-5.6-sol as the replacement. The identifier still resolves today. Sources disagree on: input_price_per_mtok, output_price_per_mtok.
state=dying sunset=2026-11-19 days_remaining=19 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=input_price_per_mtok,output_price_per_mtok checked=2026-10-31 05:09Z
openai/o3
Vendor: openai. Tracked by 3 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| docs | o3 | — | — | — | — | 2026-12-11 |
| litellm | azure/eu/o3 | 200,000 | 100,000 | $2.2 | $8.8 | 2026-11-19 |
| openrouter | openai/o3 | 200,000 | 100,000 | $2 | $8 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| high | deprecated | o3: deprecation announced for 2026-12-11 — in 44 days | 2026-10-28 |
| low | added | new model o3 | 2026-10-23 |
| high | deprecated | o3: retires 2026-12-11 (in 49 days) | 2026-10-23 |
| low | added | new model azure/eu/o3 (200,000 ctx) | 2026-10-20 |
| low | added | new model azure/us/o3 (200,000 ctx) | 2026-10-20 |
| high | deprecated | azure/eu/o3: retires 2026-11-19 (in 30 days) | 2026-10-20 |
| high | deprecated | azure/us/o3: retires 2026-11-19 (in 30 days) | 2026-10-20 |
| medium | removed | [one catalog only — litellm, openrouter still list it] openrouter/openai/o3 is no longer listed by this source — calls to it are expected to fail | 2026-10-09 |
| low | modified | openrouter/openai/o3: capabilities gained web_search | 2026-09-19 |
| high | deprecated | azure/o3: deprecation announced for 2026-11-19 — in 67 days | 2026-09-13 |
| high | deprecated | azure/o3: retires 2026-11-19 (in 67 days) | 2026-09-13 |
| low | added | new model openrouter/openai/o3 (200,000 ctx) | 2026-09-06 |
| high | deprecated | azure/o3: deprecation announced for 2026-10-21 — in 61 days | 2026-08-21 |
| high | deprecated | azure/o3: retires 2026-10-21 (in 61 days) | 2026-08-21 |
| info | modified | [source artifact — 6 providers changed identically on the same day] o3: capabilities lost service_tier | 2026-06-27 |