OpenAI · First-party API · LLM

gpt-5.4-nano

Shutdown scheduledShuts down on Apr 1, 2027179 days left

Provider-recommended replacement: gpt-6-luna

2 notices

Shutdown scheduled179 days left

OpenAI lists Apr 1, 2027 as the shutdown date. Listed model identifier.

| Apr 1, 2027 | gpt-5.4-nano | gpt-6-luna |

Read from the provider's table: each value comes from its row, with the row's scope kept.

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Release announced

OpenAI announced this model on 2026-03-17. API: v1/responses · API: v1/chat/completions.

Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API.

Read from the provider's text; the quote is the provider's exact lines.

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Each provider and hosting route sets its own dates.