GPT-5.1 (batch)

GPT-5.1 (batch) is OpenAI's general-purpose reasoning model with a 400k token context window, optimized for batch processing workflows.

Strengths

It handles diverse tasks with strong reasoning and instruction adherence across general-purpose applications.

Best for

Batch processing of large document sets, bulk analysis, and workflows where asynchronous processing is acceptable.

Limitations

GPT-5.2 (batch), released in December 2025, supersedes this model with improved reasoning capabilities, so new projects should consider the newer version.