tokevenClaude Sonnet 5 vs Gemini 3.5 Flash
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 5
Mid-tierGemini 3.5 Flash
Fast / BudgetQuality
Task confidence comparison
Guidance
When to use Claude Sonnet 5 vs Gemini 3.5 Flash
Choose Claude Sonnet 5 when...
- -You need strong code review (confidence 96 vs 65)
- -You need strong q&a (confidence 89 vs 84)
- -You need strong reasoning (confidence 89 vs 82)
- -You need strong code generation (confidence 68 vs 61)
Choose Gemini 3.5 Flash when...
- -You need strong classification (confidence 92 vs 86)
- -You need strong summarization (confidence 76 vs 64)
- -You need strong creative writing (confidence 75 vs 62)
- -You need strong extraction (confidence 73 vs 70)
- -Cost matters: 25% cheaper on input tokens
- -You need a larger context window (1.0M vs 1M)
At scale
Cost at scale
FAQ
When should I use Claude Sonnet 5 instead of Gemini 3.5 Flash?
Claude Sonnet 5 outperforms Gemini 3.5 Flash for Code Generation, Code Review, Q&A. It costs $2.00/$10.00 per million tokens (input/output).
Is Gemini 3.5 Flash cheaper than Claude Sonnet 5?
Yes. Gemini 3.5 Flash input costs $1.50/MTok vs $2.00/MTok for Claude Sonnet 5, saving 25% on input.
What are the context window sizes for Claude Sonnet 5 and Gemini 3.5 Flash?
Claude Sonnet 5 has a 1M token context window. Gemini 3.5 Flash has a 1.0M 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 5 and Gemini 3.5 Flash 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.