OpenAI: o4 Mini Deep ResearchModel23/100 via “multi-step research synthesis with mandatory web search integration”
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.
Unique: Implements mandatory, integrated web search within reasoning chain rather than optional tool calling — every research task automatically triggers search operations, embedding real-time data retrieval into the core reasoning loop rather than treating it as a supplementary capability
vs others: Guarantees current information in research outputs vs. standard LLMs limited to training data, and simpler than building custom multi-step search orchestration, but with unavoidable cost and latency overhead from mandatory web integration