Anthropic: Claude Opus 4.8 (batch)

Claude Opus 4.8 (batch) is Anthropic's model offered through a batch endpoint, accepting text, image, and file inputs. It provides a 1,000,000-token context window and can return up to 128,000 tokens in a single completion, which suits long documents, large codebases, or multi-file inputs processed in one pass. It supports tool use and reasoning; structured output support is not specified in the available data, so teams that depend on strict schema adherence should verify it before committing. At $2.50 per million input tokens and $12.50 per million output tokens, it belongs on the shortlist for asynchronous, high-volume jobs where long context matters more than immediate responses. Its blended benchmark score of 84.3 rests on only two independent benchmarks, with an AI Index score of 69.0 and an EQ-Bench score of 83.3. That coverage is thin, so readers should treat its standing as provisional and run their own evaluations against alternatives.