Claude Sonnet 5
A balanced Claude model for coding, tool use, writing, and demanding professional work.
Claude Sonnet · Generally available
Overview
Claude Sonnet 5 is Anthropic's most agentic Sonnet model, designed to plan, use tools, and follow through on multi-step work.
It is the practical middle ground in Aether's Claude selection: capable enough for serious coding and analysis while remaining more efficient than Opus.
+Pros
- Strong coding and tool use
- Good balance of depth and efficiency
- Useful for sustained professional work
-Cons
- Simple requests may be better served by a faster model
- Generated code, research, and professional drafts still need review
Best suited to
Coding and debugging
Polished writing and editing
Research synthesis
Multi-step tool workflows
Aether Workspace Position
Available as a Sonnet model in Aether.
Aether can select Claude Sonnet 5 for coding, writing, analysis, and tool-oriented requests that need a strong generalist.
Research sources
- Introducing Claude Sonnet 5Anthropic
