OpenAI·GPT

GPT-5.1

An adaptive-reasoning API update that reduced latency on easy tasks and added apply_patch and shell tools.

LegacyLanguageReasoningCodingAgentMultimodalWeights not released

MODEL NUMBER034

Specifications

Only published specifications are shown.

Input modalities

Text · Image

Open weights

Status

Legacy

An adaptive-reasoning API update that reduced latency on easy tasks and added apply_patch and shell tools.

Compared with GPT-5 ↗

PreviousGPT-5— · — ctx

CurrentGPT-5.1— · — ctx

New capabilities Adaptive reasoning Apply patch Shell tool

Adaptive reasoningCodingApply patchShell tool

2025-11-13General release

GPT-5.1 launched in the API with adaptive reasoning and new developer tools.

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