tokevenClaude Opus 4.8 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 Opus 4.8
FlagshipGemini 3.5 Flash
Fast / BudgetQuality
Task confidence comparison
Guidance
When to use Claude Opus 4.8 vs Gemini 3.5 Flash
Choose Claude Opus 4.8 when...
- -You need strong reasoning (confidence 97 vs 60)
- -You need strong code generation (confidence 95 vs 68)
- -You need strong code review (confidence 94 vs 65)
- -You need strong creative writing (confidence 93 vs 55)
Choose Gemini 3.5 Flash when...
- -You need strong classification (confidence 92 vs 80)
- -You need strong extraction (confidence 90 vs 82)
- -Cost matters: 70% cheaper on input tokens
- -You need a larger context window (1,000K vs 200K)
At scale
Cost at scale
FAQ
When should I use Claude Opus 4.8 instead of Gemini 3.5 Flash?
Claude Opus 4.8 outperforms Gemini 3.5 Flash for Reasoning, Code Generation, Code Review. It costs $5.00/$25.00 per million tokens (input/output).
Is Gemini 3.5 Flash cheaper than Claude Opus 4.8?
Yes. Gemini 3.5 Flash input costs $1.50/MTok vs $5.00/MTok for Claude Opus 4.8, saving 70% on input.
What are the context window sizes for Claude Opus 4.8 and Gemini 3.5 Flash?
Claude Opus 4.8 has a 200K token context window. Gemini 3.5 Flash has a 1,000K 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 Opus 4.8 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.