o3 Pro (batch)

OpenAI's high-compute reasoning model in the o-series, designed for extended chain-of-thought processing on complex problems, available only for batch processing.

Strengths

Excels at deep reasoning and complex problem-solving through extended chain-of-thought, with a 200k token context window for handling large documents and multi-turn reasoning.

Best for

Batch workloads requiring intensive reasoning on difficult problems, where latency is not a constraint and solution quality is the priority.

Limitations

Only available as a batch API, not for real-time inference; represents a premium tier within the o-series that trades cost for reasoning capability.