What it does
Anthropic's flagship LLM, used inside IDEs (Cursor, Zed) and as a standalone agent for multi-file refactors.
Best for
Senior engineers doing complex, multi-file work.
+ Pros
- +Top-tier code reasoning
- +200k+ context window
- +Strong tool use & agents
− Cons
- −Rate limits on Pro
- −Slower than GPT-class on simple tasks
Pricing
Free · Pro $20 · Team $30/seat · API pay-as-you-go
Verdict
The default pick for serious software work in 2026.