claude-opus-4-6
Capability: 200K context · tool use · vision · prompt caching · streaming · extended thinking
Pricing: per-token, Opus tier (live rate)
Opus 4.6 is the refinement step on 4.5 — tighter
long-form prose and a measurable drop in hallucinations when summarising
across many documents within its 200K context. It’s the right Opus for
multi-document workflows that 4.5 was nearly good enough at: legal review,
scientific literature synthesis, codebase audit reports.
Opus 4.8 is the current flagship; 4.6 is kept
available for teams who’ve validated against this specific version.
Request
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When to use
- Multi-document synthesis where 4.5 was almost-but-not-quite reliable.
- Long-form summarisation that needs tight, non-repetitive prose.
- For the current flagship Opus, see Opus 4.8.
- For mid-tier cost / latency, see Sonnet 4.6.