OpenAI: o4 Mini Deep Research

OpenAI's o4 Mini Deep Research is a paid model from OpenAI that accepts text, images, and files as input, with a 200,000-token context window and up to 100,000 tokens of completion output. It supports tool use and reasoning, making it suited for multi-step research tasks that require processing long documents or mixed-media inputs. Structured output support is unconfirmed from available data. For comparison purposes, the model sits at $2.00 per million input tokens and $8.00 per million output tokens, which is moderately priced for a reasoning-capable model but not budget tier. The more significant caveat is that no independent benchmark coverage exists yet, so there is no third-party performance data to weigh against competitors. Buyers who need deep research workflows with large context and tool integration may find it worth trialing, but anyone prioritizing verified, comparable performance scores should wait for independent evaluations before committing.