Claude Sonnet 5

Anthropic's most agentic Sonnet, released June 30, 2026 — generally available now as the default model on Free and Pro plans, plus Max/Team/Enterprise and the API (claude-sonnet-5). Delivers near-Opus-4.8 quality at much lower cost, with strong agentic planning, autonomous tool/browser/terminal use and coding. Introductory pricing $2 input / $10 output per 1M tokens through Aug 31, 2026, then $3 / $15 standard. Context window not yet published — verify.

Claude Sonnet 5 strengths

• Highly agentic (planning + autonomous tool/browser/terminal use)
• Strong agentic coding
• Near-Opus-4.8 quality at much lower cost
• Great for high-scale agents and chatbots
• Improved safety over predecessors

Pricing & context

Cost guide: a typical call of ~10K input + 2K output tokens runs roughly $2.00 × 0.01 + $10.00 × 0.002 — worth modelling against cheaper tiers before committing high-volume traffic.

When to choose Claude Sonnet 5

Claude Sonnet 5 is best for Running AI agents affordably, multi-step automation, coding assistants and high-scale chat where you want near-flagship quality at lower cost. If your workload is more cost-sensitive, weigh it against Llama 4 Scout (~$0.08 (varies by host) input /1M) first.

Claude Sonnet 5 FAQ

How much does Claude Sonnet 5 cost?

Claude Sonnet 5 is priced at $2.00 per 1M input tokens and $10.00 per 1M output tokens (public API list price), with a 1M tokens (verify — not yet published for Sonnet 5) context window.

What is Claude Sonnet 5 best for?

Claude Sonnet 5 by Anthropic is best for Running AI agents affordably, multi-step automation, coding assistants and high-scale chat where you want near-flagship quality at lower cost.

Is Claude Sonnet 5 multimodal?

Claude Sonnet 5 supports text, image.

Tools that use Claude Sonnet 5