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GPT-5.4
OpenAI · GPT-5
OpenAI released GPT-5.4 on March 5, 2026.
GPT-5.4 is the OpenAI frontier model for professional work released on March 5, 2026 to the Chat Completions and Responses APIs, together with GPT-5.4 Pro in the Responses API for harder problems that benefit from more compute. GPT-5.4 Thinking arrived in ChatGPT the same day. It brought a 1M token context window, native compaction for longer agent workflows, and built-in computer use through the Responses API computer tool. GPT-5.4 mini and GPT-5.4 nano followed on March 17: mini brings GPT-5.4-class capabilities to a faster model for high-volume work, and nano targets simple high-volume tasks.
GPT-5.4 at a glance
- Released
- API model id
gpt-5.4gpt-5.4-progpt-5.4-minigpt-5.4-nano- Available on
- OpenAI APIChatGPT
- Previous model
- GPT-5.2 (December 11, 2025)
- Announcement
- developers.openai.com
What changed from GPT-5.2
Launched with GPT-5.4: tool search in the Responses API, which defers large tool surfaces until runtime to cut tokens and latency; built-in computer use; and a 1M token context window with native compaction.
GPT-5.4 mini supports tool search, computer use and compaction; nano supports compaction only.
New to model names and version numbers? Read how AI labs version their models.
GPT-5.4 release timeline
The launch and every later OpenAI release that mentions GPT-5.4, oldest first.
- GPT-5.4 and GPT-5.4 Pro
Released GPT-5.4 , our newest frontier model for professional work, to the Chat Completions and Responses API, and released GPT-5.4 Pro to the Responses API for tougher problems that benefit from more compute. Also released: Tool search in the Responses API, which lets models de…
Source: OpenAI API Changelog - GPT-5.4 Thinking in ChatGPT
OpenAI brought GPT-5.4 Thinking into ChatGPT, folding its newer frontier model into the reasoning mode for harder work.
Source: OpenAI Help Center Release Notes - GPT-5.4 mini and nano
Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API. GPT-5.4 mini brings GPT-5.4-class capabilities to a faster, more efficient model for high-volume workloads, while GPT-5.4 nano is optimized for simple high-volume tasks where speed and cost matter…
Source: OpenAI API Changelog - GPT-5.4 mini in ChatGPT
OpenAI rolled out GPT-5.4 mini as a lightweight reasoning fallback for free, Go, and paid users when higher-tier limits are reached.
Source: OpenAI Help Center Release Notes
GPT-5.4 FAQ
When was GPT-5.4 released?
OpenAI released GPT-5.4 on March 5, 2026. The launch entry below links to the official announcement.
Where is GPT-5.4 available?
GPT-5.4 is available on OpenAI API and ChatGPT. Later availability changes are listed under follow-up releases on this page.
What is the GPT-5.4 API model id?
Use gpt-5.4, gpt-5.4-pro, gpt-5.4-mini and gpt-5.4-nano in OpenAI's API.
What came before GPT-5.4?
GPT-5.4 follows GPT-5.2, released on December 11, 2025.
Other OpenAI models
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