tokevenClaude Opus 5 vs Gemini 3.1 Flash-Lite
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 5
FlagshipGemini 3.1 Flash-Lite
Fast / BudgetQuality
Task confidence comparison
Guidance
When to use Claude Opus 5 vs Gemini 3.1 Flash-Lite
Choose Claude Opus 5 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini 3.1 Flash-Lite when...
- -Cost matters: 95% cheaper on input tokens
- -You need a larger context window (1,048.576K vs 1,000K)
At scale
Cost at scale
FAQ
When should I use Claude Opus 5 instead of Gemini 3.1 Flash-Lite?
Claude Opus 5 and Gemini 3.1 Flash-Lite perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Gemini 3.1 Flash-Lite cheaper than Claude Opus 5?
Yes. Gemini 3.1 Flash-Lite input costs $0.25/MTok vs $5.00/MTok for Claude Opus 5, saving 95% on input.
What are the context window sizes for Claude Opus 5 and Gemini 3.1 Flash-Lite?
Claude Opus 5 has a 1,000K token context window. Gemini 3.1 Flash-Lite has a 1,048.576K 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 5 and Gemini 3.1 Flash-Lite 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.