Models

o1

OpenAI · December 2024

An early reasoning model: it works through problems step by step. Built for hard problems, not chat or code.

Superseded by o3 →

  • Modalities

  • Context window

    200,000 tokens, ≈ 150,000 words · about 600 pages

  • Max output

    100,000 tokens, ≈ 75,000 words in a single answer

  • Knowledge cutoff

    October 2023

Reasoning effort

  • Low

  • Medium

  • High

Providers

Files you can attach

  • ImagesJPG, PNG, GIF, WEBP
  • DocumentsPDF, DOCX, XLSX, PPTX
  • Text and codeTXT, MD, CSV, TSV, RPT, LOG, PY, TS, TSX, JS, JSX, CS, GO, JAVA, KT, SWIFT, CPP, C, H, PHP, RB, SQL, SH, PS1, HTML, CSS, SCSS, JSON, YAML, YML, XML, INI

Tools

  • Web searchSupported

Features

  • StreamingSupported
  • Function callingSupported
  • Structured outputsSupported
  • Fine-tuningNot supported

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