AI3

GPT-5.1

Verified model identity; pricing and changes appear only when published.

Data as of 11/2/2026 · Some data unavailable

Identity verified · Other data unavailable

Model information

Model identity verified

A uniquely matched price is not published; other details are available on demand.

Verified

01

Current data

Pending

The model identity is verified; uniquely matched standard API pricing is not published yet.

05 · ON DEMAND

Object profile

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Model history

  1. Release ·

    Released gpt-5.1-codex-max to the Responses API. GPT-5.1-Codex is our most intelligent coding model optimized for long-horizon, agentic coding tasks. Read more here .

    Official source · Observed
  2. Release ·

    Released GPT-5.1 , the newest flagship model in the GPT-5 model family. GPT-5.1 is trained to be especially proficient in:

    Official source · Observed