Claude Sonnet 3.7 ⌄
Claude Sonnet 3.7 ⌄

Chat with Claude Sonnet 3.7

Powered by Anthropic.

A balanced Anthropic model — most of Sonnet 4's quality at roughly half the cost, ideal for daily writing and analysis.

What Claude Sonnet 3.7 is best for

  • Everyday email and document writing
  • Editing and polishing existing copy
  • Summarising research and long articles
  • General coding help and explanations
  • Brainstorming with structured output

Frequently asked questions

Is 3.7 good enough vs Sonnet 4?

For most users, yes. The gap shows up on the hardest reasoning and creative-writing tasks.

What does Anthropic do differently?

Anthropic's Constitutional AI approach focuses on safe, helpful responses, which often results in clearer and more cautious answers.

Can I upload files to Claude here?

File uploads are part of the Pro plan. Free users can paste content directly into the chat.

How recent is its training data?

Claude 3.7 Sonnet's knowledge cutoff is in 2024 — for current events, use a Perplexity search model.

More questions about AI models? Read our AI models FAQ — comparisons, picks for coding/writing, and what each model is best at.