Claude Sonnet 4.5 (batch)

Claude Sonnet 4.5 in batch mode is Anthropic's speed-focused reasoning model optimized for asynchronous processing with a 1 million token context window.

Strengths

Handles long documents and large-scale processing at high throughput through batch processing, with reasoning capabilities competitive with larger models.

Best for

Asynchronous workflows that prioritize throughput and cost-efficiency while working with documents that exceed standard context limits.

Limitations

Batch processing introduces latency unsuitable for real-time applications; Claude Sonnet 4.6 (batch) offers improved reasoning in the same batch tier.