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OpenAI: o4 Mini Deep Research

OpenAIllm

Published October 10, 2025

About

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.

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Test this model in the Sandbase Playground with your own prompts.

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