RETIRING IN 370 DAYS
Sunset scheduled for 2027-09-21, reported by a third-party catalog. The identifier still resolves today. Sources disagree on: context_tokens.
state=dying sunset=2027-09-21 days_remaining=370 severity=high sources=litellm,openrouter evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=yes divergent_fields=context_tokens checked=2026-09-16 03:02Z
openai/gpt-5.4-mini
Vendor: openai. Tracked by 2 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| litellm | azure/gpt-5.4-mini | 272,000 | 128,000 | $0.75 | $4.5 | 2027-09-21 |
| openrouter | openai/gpt-5.4-mini | 400,000 | 128,000 | $0.75 | $4.5 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| low | added | new model aihubmix/gpt-5.4-mini (400,000 ctx) | 2026-09-16 |
| low | added | new model openrouter/openai/gpt-5.4-mini (272,000 ctx) | 2026-09-06 |
| medium | deprecated | azure/gpt-5.4-mini: deprecation announced for 2027-09-21 — in 396 days | 2026-08-21 |
| medium | deprecated | azure_ai/gpt-5.4-mini: deprecation announced for 2027-09-21 — in 396 days | 2026-08-21 |
| medium | deprecated | azure/gpt-5.4-mini: retires 2027-09-21 (in 396 days) | 2026-08-21 |
| medium | deprecated | azure_ai/gpt-5.4-mini: retires 2027-09-21 (in 396 days) | 2026-08-21 |
| low | modified | azure/gpt-5.4-mini: capabilities gained none_reasoning_effort, xhigh_reasoning_effort | 2026-08-16 |
| high | modified | azure/gpt-5.4-mini: context_tokens cut 1,050,000 to 272,000 | 2026-07-30 |
| high | modified | azure_ai/gpt-5.4-mini: context_tokens cut 400,000 to 272,000 | 2026-07-30 |
| high | modified | gpt-5.4-mini: context_tokens cut 1,050,000 to 272,000 | 2026-07-30 |
| info | modified | [source artifact — 6 providers changed identically on the same day] azure/gpt-5.4-mini: capabilities lost service_tier | 2026-06-27 |
| info | modified | [source artifact — 6 providers changed identically on the same day] azure_ai/gpt-5.4-mini: capabilities lost service_tier | 2026-06-27 |
| info | modified | [source artifact — 6 providers changed identically on the same day] gpt-5.4-mini: capabilities lost service_tier | 2026-06-27 |
| low | modified | gpt-5.4-mini: context_tokens raised 272,000 to 1,050,000 | 2026-06-26 |
| low | added | new model azure_ai/gpt-5.4-mini (400,000 ctx) | 2026-05-16 |