OpenAI: o4 Mini Deep ResearchModel23/100 via “adaptive research depth scaling based on problem complexity”
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 internal complexity estimation that drives dynamic research depth allocation — the model assesses problem difficulty and automatically scales search iterations and reasoning steps, creating a self-optimizing research workflow without explicit configuration
vs others: More efficient than fixed-depth research systems that waste effort on simple queries, but less predictable than explicit depth configuration and with opaque cost implications vs. systems with transparent step counting