RETIRING IN 337 DAYS
Sunset scheduled for 2027-09-02, reported by a third-party catalog. The identifier still resolves today. Sources disagree on: context_tokens, input_price_per_mtok, output_price_per_mtok.
state=dying sunset=2027-09-02 days_remaining=337 severity=high sources=litellm,openrouter evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=yes divergent_fields=context_tokens,input_price_per_mtok,output_price_per_mtok checked=2026-09-30 15:40Z
openai/gpt-5.4
Vendor: openai. Tracked by 2 of 5 sources.
What each source reports
| Source | ID | Context | Max out | In $/Mtok | Out $/Mtok | Sunset |
|---|---|---|---|---|---|---|
| litellm | azure/eu/gpt-5.4 | 922,000 | 128,000 | $2.75 | $16.5 | 2027-09-02 |
| openrouter | openai/gpt-5.4 | 1,050,000 | 128,000 | $2.5 | $15 | — |
Change history
| Severity | Change | What | Detected |
|---|---|---|---|
| high | modified | azure/eu/gpt-5.4: context_tokens cut 1,050,000 to 922,000 | 2026-09-30 |
| high | modified | azure/gpt-5.4: context_tokens cut 1,050,000 to 922,000 | 2026-09-30 |
| high | modified | azure/us/gpt-5.4: context_tokens cut 1,050,000 to 922,000 | 2026-09-30 |
| high | modified | azure_ai/gpt-5.4: context_tokens cut 1,050,000 to 922,000 | 2026-09-30 |
| low | modified | chatgpt/gpt-5.4: capabilities gained none_reasoning_effort, reasoning, xhigh_reasoning_effort | 2026-09-26 |
| info | repriced | global.openai.gpt-5.4: input_price_per_mtok $2.75/Mtok to $2.50/Mtok | 2026-09-24 |
| info | repriced | global.openai.gpt-5.4: output_price_per_mtok $16.50/Mtok to $15.00/Mtok | 2026-09-24 |
| info | repriced | global.openai.gpt-5.4: cache_read_price_per_mtok $0.28/Mtok to $0.25/Mtok | 2026-09-24 |
| low | added | new model global.openai.gpt-5.4 (1,000,000 ctx) | 2026-09-24 |
| low | added | new model us.openai.gpt-5.4 (1,000,000 ctx) | 2026-09-24 |
| low | modified | openrouter/openai/gpt-5.4: capabilities gained web_search | 2026-09-19 |
| info | repriced | azure/eu/gpt-5.4: cache_read_price_per_mtok $0.28/Mtok to $0.28/Mtok | 2026-09-16 |
| info | repriced | azure/us/gpt-5.4: cache_read_price_per_mtok $0.28/Mtok to $0.28/Mtok | 2026-09-16 |
| high | modified | gpt-5.4: capabilities lost minimal_reasoning_effort | 2026-09-11 |
| low | added | new model openrouter/openai/gpt-5.4 (1,050,000 ctx) | 2026-09-06 |
| medium | deprecated | azure/eu/gpt-5.4: deprecation announced for 2027-09-02 — in 377 days | 2026-08-21 |
| medium | deprecated | azure/gpt-5.4: deprecation announced for 2027-09-02 — in 377 days | 2026-08-21 |
| medium | deprecated | azure/us/gpt-5.4: deprecation announced for 2027-09-02 — in 377 days | 2026-08-21 |
| medium | deprecated | azure_ai/gpt-5.4: deprecation announced for 2027-09-02 — in 377 days | 2026-08-21 |
| medium | deprecated | azure/eu/gpt-5.4: retires 2027-09-02 (in 377 days) | 2026-08-21 |
| medium | deprecated | azure/gpt-5.4: retires 2027-09-02 (in 377 days) | 2026-08-21 |
| medium | deprecated | azure/us/gpt-5.4: retires 2027-09-02 (in 377 days) | 2026-08-21 |
| medium | deprecated | azure_ai/gpt-5.4: retires 2027-09-02 (in 377 days) | 2026-08-21 |
| low | modified | azure/eu/gpt-5.4: capabilities gained minimal_reasoning_effort, none_reasoning_effort, xhigh_reasoning_effort | 2026-08-16 |
| low | modified | azure/gpt-5.4: capabilities gained minimal_reasoning_effort, none_reasoning_effort, xhigh_reasoning_effort | 2026-08-16 |
| low | modified | azure/us/gpt-5.4: capabilities gained minimal_reasoning_effort, none_reasoning_effort, xhigh_reasoning_effort | 2026-08-16 |
| low | added | new model azure/eu/gpt-5.4 (1,050,000 ctx) | 2026-07-06 |
| low | added | new model azure/us/gpt-5.4 (1,050,000 ctx) | 2026-07-06 |
| info | modified | [source artifact — 6 providers changed identically on the same day] azure/gpt-5.4: capabilities lost service_tier | 2026-06-27 |
| info | modified | [source artifact — 6 providers changed identically on the same day] azure_ai/gpt-5.4: capabilities lost service_tier | 2026-06-27 |
| info | modified | [source artifact — 6 providers changed identically on the same day] gpt-5.4: capabilities lost service_tier | 2026-06-27 |
| low | added | new model azure_ai/gpt-5.4 (1,050,000 ctx) | 2026-05-16 |