tokevenClaude Sonnet 4.6 vs GPT 5.6 Luna
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 4.6
Mid-tierGPT 5.6 Luna
Fast / BudgetQuality
Task confidence comparison
Guidance
When to use Claude Sonnet 4.6 vs GPT 5.6 Luna
Choose Claude Sonnet 4.6 when...
- -You need strong code review (confidence 95 vs 68)
- -You need strong code generation (confidence 92 vs 70)
- -You need strong summarization (confidence 90 vs 84)
- -You need strong reasoning (confidence 88 vs 63)
Choose GPT 5.6 Luna when...
- -You need strong classification (confidence 91 vs 84)
- -You need strong extraction (confidence 89 vs 86)
- -Cost matters: 93% cheaper on input tokens
- -You need a larger context window (1,050K vs 200K)
At scale
Cost at scale
FAQ
When should I use Claude Sonnet 4.6 instead of GPT 5.6 Luna?
Claude Sonnet 4.6 outperforms GPT 5.6 Luna for Code Generation, Code Review, Reasoning. It costs $3.00/$15.00 per million tokens (input/output).
Is GPT 5.6 Luna cheaper than Claude Sonnet 4.6?
Yes. GPT 5.6 Luna input costs $0.20/MTok vs $3.00/MTok for Claude Sonnet 4.6, saving 93% on input.
What are the context window sizes for Claude Sonnet 4.6 and GPT 5.6 Luna?
Claude Sonnet 4.6 has a 200K token context window. GPT 5.6 Luna has a 1,050K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Sonnet 4.6 and GPT 5.6 Luna stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.