Claude Opus 4.6 (batch)

Claude Opus 4.6 in batch mode, Anthropic's flagship reasoning model optimized for asynchronous processing with a 1 million token context window.

Strengths

Handles complex reasoning, long-context analysis, and knowledge-intensive tasks with high accuracy in batch workflows where latency is not a constraint.

Best for

Asynchronous workloads that benefit from Opus-tier reasoning capability — document analysis, research synthesis, complex problem-solving — where batch processing latency is acceptable.

Limitations

Batch mode introduces latency and is not suitable for real-time or conversational applications; newer Opus 4.8 (batch) offers improved reasoning on long-horizon agentic work, and Fable 5 provides a higher tier for the hardest reasoning problems.