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OpenAI

GPT-5.4

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

Capabilities:

Input
  • Text input
  • Image input (vision)
  • File input (PDF)
  • Audio input
  • Video input
Output
  • Text output
  • Image output
  • Audio output
Fast mode:

  • Output speed

    Up to 1.5x faster

  • Fast mode price

    $5 / $30 per M

  • Standard price

    $2.5 / $15 per M

  • Price premium

    2x
Pricing & availability:

  • OpenRouterOpenRouter

    $2.5 / $15 per M
Sources:
OpenRouterOpenRouter
Share:
Details:

  • OpenAIProvider

    OpenAI

  • Context window

    1.05M

  • Input price

    $2.5/M

  • Output price

    $15/M

  • Open weights

    No

  • Released

    Mar 2026