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Claude Sonnet 4.6API
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.
Prices update automatically — checked daily against provider list prices.
- $6 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 17% of the 226 commercial models tracked here
- 18 of 30 Anthropic models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for Claude Sonnet 4.6, measured by Artificial Analysis. Higher is better. Measurement mode: Non-reasoning, Low.
About this model
Claude Sonnet 4.6 is a commercial AI model by Anthropic. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is Claude Sonnet 4.6?
Claude Sonnet 4.6 is an AI language model from Anthropic. It is a proprietary model, available through an API.
Is Claude Sonnet 4.6 free?
Claude Sonnet 4.6 is not free: it costs $3 per million input tokens and $15 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is Claude Sonnet 4.6 good at?
Independent benchmarks from Artificial Analysis give it GPQA 79.7%, Humanity's Last Exam 11.2%, Long Context Reasoning 69.3%, IFBench 42.4%, τ²-Bench 78.9%, Terminal-Bench Hard 42.4%.