ModelRefs / Claude Opus 4.1 by Anthropic — Benchmarks, Pricing & Review…

Claude Opus 4.1 by Anthropic — Benchmarks, Pricing & Review…

Claude Opus 4.1 (Anthropic): Claude Opus 4.1 by Anthropic.. 200K context. Pricing: from $0.0150/1K in. Specs, benchmarks and code examples.

What this reference supports

Claude Opus 4.1 is Anthropic's upgrade to Claude Opus 4, positioned at the top of the Claude 4 generation for demanding coding, reasoning, and agentic workloads with extended-thinking support. Its premium cost profile makes workload routing — Opus for the hardest tasks, Sonnet-tier for volume — the central implementation decision.

Claude Opus 4.1 is attributed to Anthropic in ModelRefs' canonical registry. Tracked modalities: Text input and output, Image input. Primary use cases considered on ModelRefs: Hardest-tier coding, refactoring, and multi-step agentic reasoning; High-stakes analysis where maximum model capability justifies premium cost.

This ModelRefs profile is Provisional and pending review — decision-support material, not a final or universal ranking. Confirm current behavior, access, pricing, limits, licensing, and lifecycle in Anthropic's own documentation, and evaluate Claude Opus 4.1 on representative workloads before implementation.

Benchmark & Evaluation

ModelRefs does not yet hold qualifying sourced benchmark evidence for Claude Opus 4.1, so its benchmark coverage is incomplete. Treat any benchmark discussion as provisional and confirm results on representative workloads before selecting it.

  • No benchmark score is imported into this editorial record. Provider-reported evaluations support scoped notes only; canonical score records are governed separately with their own provenance.
  • Anthropic's release notes report provider-run coding and agentic evaluations for Opus 4.1; canonical score records remain separately governed.

Implementation considerations

  • Route only the workload segments that measurably benefit from Opus-tier capability; evaluate against Sonnet 4.5 on your own tasks first.
  • Tune extended-thinking budgets per task and pin the model version for reproducible behavior.
  • Hosted through the Anthropic API and eligible cloud partners (per Anthropic's current documentation).
  • Verify current lifecycle status, limits, and pricing in the models overview before rollout; newer Opus-tier releases may supersede it.

Risks and limitations

  • Hosted-model behavior, quotas, pricing, and data controls can change without a client-side version pin unless a dated snapshot is used.
  • Provider-reported capabilities require task-specific evaluation before production reliance.

Source coverage

This reference is Provisional. Model behavior, access, pricing, limits, and lifecycle can change; verify the linked provider documentation and run task-specific evaluations before implementation.

Known coverage gaps:

  • Independent evaluation reproduction and lifecycle tracking against newer Opus releases are not attached.
  • Task-level cost-benefit evidence versus Sonnet-tier routing is incomplete.

Sources

Continue your research

Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Claude Opus 4.1 by Anthropic — Benchmarks, Pricing & Review….