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OpenAI

o4 Mini Deep Research

o4-mini-deep-research is OpenAI's faster, more affordable deep research model, ideal for tackling complex, multi-step research tasks. Note: This model always uses the 'web_search' tool which adds additional cost.

Capabilities:

Input
  • Text input
  • Image input (vision)
  • File input (PDF)
  • Audio input
  • Video input
Output
  • Text output
  • Image output
  • Audio output
Pricing & availability:

  • OpenRouterOpenRouter

    $2 / $8 per M
Sources:
OpenRouterOpenRouter
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Details:

  • OpenAIProvider

    OpenAI

  • Context window

    200K

  • Input price

    $2/M

  • Output price

    $8/M

  • Open weights

    No

  • Released

    Oct 2025