Claude Opus 4.6 is Anthropic’s latest state-of-the-art reasoning model. It features an adaptive “thinking” mode that dynamically decides when to think and how much to think. At the default effort level (high), Claude will almost always engage in thinking. At lower effort levels, it may skip thinking for simple problems. ⚠️ The minimum cache token for claude-opus-4-6 has been increased from 1,024 to 4,096 tokens.
Anthropic Opus 4.6 vs Claude 2.1
Compare Anthropic Opus 4.6 from Anthropic and Claude 2.1 from Anthropic on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Activity Past 30 Days
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Performance Past 3 Days
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Cost calculator
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FAQ
Which is cheaper: Anthropic Opus 4.6, Claude 2.1?
Anthropic Opus 4.6: $25/M output tokens; Claude 2.1: $39.6/M. Use the cost calculator above to estimate your own workload.
Can I call Anthropic Opus 4.6 and Claude 2.1 with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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