GPT-4.1

OpenAI · April 2025

Answers straight away without thinking first. Good for conversation and code when speed matters more than depth.

Best for
Coding
Superseded by
GPT-5
  • Context window

    1,047,576 tokens

    ≈ 786,000 words · about 3,140 pages

  • Max output

    32,768 tokens

    ≈ 25,000 words in a single answer

  • Knowledge cutoff

    June 2024

    its training cutoff

Modalities

  • TextInput and output
  • ImageInput only
  • AudioNot supported
  • VideoNot supported

Features

  • StreamingSupported
  • Function callingSupported
  • Structured outputsSupported
  • Fine-tuningSupported

Tools

  • Web searchSupported
  • Hosted shellNot supported
  • Apply patchNot supported
  • Tool searchNot supported

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