tokevenClaudevsGemini
Claude Sonnet 5 vs Gemini 3.1 Pro
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Sonnet 5
Mid-tierGemini 3.1 Pro
Mid-tierInput $/MTok
$2.00
$2.00
Output $/MTok
$10.00
$12.00
Cache discount
90% off
75% off
Context
200K
1,000K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
93
vs
86
Code Review
96
vs
84
Summarization
91
vs
87
Q&A
89
vs
87
Extraction
88
vs
85
Reasoning
90
vs
90
Classification
86
vs
86
Creative Writing
87
vs
84
Claude Sonnet 5
Gemini 3.1 Pro
Guidance
When to use Claude Sonnet 5 vs Gemini 3.1 Pro
Choose Claude Sonnet 5 when...
- -You need strong code review (confidence 96 vs 84)
- -You need strong code generation (confidence 93 vs 86)
- -You need strong summarization (confidence 91 vs 87)
- -You need strong q&a (confidence 89 vs 87)
Choose Gemini 3.1 Pro when...
- -You need a larger context window (1,000K vs 200K)
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 5
Gemini 3.1 Pro
100K tokens
$0.44Cheaper
$0.50
1M tokens
$4.40Cheaper
$5.00
10M tokens
$44.00Cheaper
$50.00
FAQ
When should I use Claude Sonnet 5 instead of Gemini 3.1 Pro?
Claude Sonnet 5 outperforms Gemini 3.1 Pro for Code Generation, Code Review, Summarization. It costs $2.00/$10.00 per million tokens (input/output).
Is Gemini 3.1 Pro cheaper than Claude Sonnet 5?
Both models have the same input pricing at $2.00/MTok. Compare output pricing: $10.00 vs $12.00/MTok.
What are the context window sizes for Claude Sonnet 5 and Gemini 3.1 Pro?
Claude Sonnet 5 has a 200K token context window. Gemini 3.1 Pro has a 1,000K token context window.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.