Directory · Model comparison
Claude Sonnet 5 vs Gemini 3.1 Flash-Lite
Side-by-side API economics and benchmarks. Per-1M input and output rates, context window, and verified metrics.
Tale of the tape
Head-to-head specs pulled from each model profile.
| Metric | Claude Sonnet 5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| Input cost / 1M | $2.00 | $0.25 |
| Output cost / 1M | $10.00 | $1.50 |
| Context window | 1,000,000 tokens | 1,048,576 tokens |
| MMLU score | — | — |
Cost verdict
Enter monthly input and output volumes to see total cost savings.
Claude Sonnet 5
- Input: 1M × $2.00 = $2.00
- Output: 1M × $10.00 = $10.00
- Total
- $12.00
Gemini 3.1 Flash-Lite
- Input: 1M × $0.25 = $0.25
- Output: 1M × $1.50 = $1.50
- Total
- $1.75
Total cost savings
$10.25
Gemini 3.1 Flash-Lite saves $10.25 per month vs the other model at this volume.
Model routing savings
Uses this page's verified rates. Claude Sonnet 5 is the premium route (higher combined per-1M cost); Gemini 3.1 Flash-Lite handles routine traffic.
All premium
Claude Sonnet 5
$600.00
100% of input and output on the premium route
Routed stack
80% → Gemini 3.1 Flash-Lite
20% → Claude Sonnet 5
$190.00
- Routine slice
- $70.00
- Premium slice
- $120.00
Monthly savings
$410.00
68.3% lower
Rates pulled from this page's model database entries (claude-sonnet-5, gemini-3-1-flash-lite) — same per-1M input/output figures as Tale of the tape. Production routing needs quality gates and monitoring.
Related comparisons
More head-to-head model matchups.