Claude Sonnet 5
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Specifications
Technical details and pricing.
Benchmarks
4 benchmark scores from Artificial Analysis.
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Frequently Asked Questions
What is Claude Sonnet 5 good for?
Use Claude Sonnet 5 for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.
How much does Claude Sonnet 5 cost?
Pricing is based on usage. Current rates are $2.00/1M tokens for input and $10.00/1M tokens for output.
Can I use Claude Sonnet 5 in LLMBase Chat?
Yes. Use the chat action on this page to open Claude Sonnet 5 in LLMBase Chat. Access still follows the current plan and model tier.
Does Claude Sonnet 5 support images or audio?
Claude Sonnet 5 can understand images.
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Benchmarks and pricing use Artificial Analysis where available. Catalog specs are used as a fallback.