GPT-5.2 Pro (batch)

OpenAI's frontier-grade reasoning model with a 400k token context window, optimized for batch processing and released in December 2025 as part of the GPT-5.2 generation.

Strengths

Delivers high-capability reasoning on complex tasks while being tuned for asynchronous batch workflows where latency is not a constraint.

Best for

Large-scale processing jobs, research, analysis, and bulk generation tasks where batch turnaround is acceptable.

Limitations

Designed for batch APIs rather than real-time inference; use GPT-5.2 Pro instead if you need synchronous responses with the same reasoning capability.