Pick Claude if…
- It's our Editor's Pick in Chat & Assistants — the strongest signal on the site.
- You want the cheaper option (starts at $17/mo, Microsoft Copilot starts at $20/mo).
- You specifically need Opus 5 (new #1), Fable 5 & Sonnet 5 or 1M-token context + effort dial, which Microsoft Copilot doesn't ship.
- Your primary use case is Long-document analysis or Coding — Microsoft Copilot doesn't list this.