Claude Sonnet 5

CurrentLatestFrontier

Claude Sonnet 5 is Anthropic's balanced current Sonnet model for agentic coding, tool use, and production knowledge work, offering a stronger cost-performance lane than prior Sonnet releases.

View provider docs Try it →

Provider

Anthropic

Model family

Anthropic Claude

Multimodal LLM

Cost tier

Sonnet

Status

Current

Why teams choose it

🧠

Use as the Claude-family production default when teams need agentic coding and tool-use…

quality at a lower cost than Opus.

📎

Anthropic describes Sonnet 5 as a strict improvement over Sonnet 4.6 for reasoning

tool use, coding, and knowledge work.

Tradeoffs to know

Introductory pricing changes after August 31, 2026; update cost models before broad rollout.
For cyber work requiring reduced guardrails, Anthropic recommends Opus 4.8 rather than Sonnet 5.

When not to use this

Not ideal for simple tasks where cheaper models in the same lineup are good enough.
Avoid for latency-sensitive real-time chat when raw response speed outweighs reasoning depth.
Confirm limits, pricing, and regional availability on the provider side before committing production workloads.

Technical specs