tokevenClaudevsGemini
Claude Sonnet 5 vs Gemini 3 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 Flash
Fast / BudgetInput $/MTok
$2.00
$0.50
Output $/MTok
$10.00
$3.00
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
65
Code Review
96
vs
62
Summarization
91
vs
83
Q&A
89
vs
82
Extraction
88
vs
86
Reasoning
90
vs
58
Classification
86
vs
88
Creative Writing
87
vs
52
Claude Sonnet 5
Gemini 3 Flash
Guidance
When to use Claude Sonnet 5 vs Gemini 3 Flash
Choose Claude Sonnet 5 when...
- -You need strong code review (confidence 96 vs 62)
- -You need strong code generation (confidence 93 vs 65)
- -You need strong summarization (confidence 91 vs 83)
- -You need strong reasoning (confidence 90 vs 58)
Choose Gemini 3 Flash when...
- -You need strong classification (confidence 88 vs 86)
- -Cost matters: 75% cheaper on input tokens
- -You need a larger context window (1,000K vs 200K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 5
Gemini 3 Flash
100K tokens
$0.44
$0.13Cheaper
1M tokens
$4.40
$1.25Cheaper
10M tokens
$44.00
$12.50Cheaper
FAQ
When should I use Claude Sonnet 5 instead of Gemini 3 Flash?
Claude Sonnet 5 outperforms Gemini 3 Flash for Code Generation, Code Review, Reasoning. It costs $2.00/$10.00 per million tokens (input/output).
Is Gemini 3 Flash cheaper than Claude Sonnet 5?
Yes. Gemini 3 Flash input costs $0.50/MTok vs $2.00/MTok for Claude Sonnet 5, saving 75% on input.
What are the context window sizes for Claude Sonnet 5 and Gemini 3 Flash?
Claude Sonnet 5 has a 200K token context window. Gemini 3 Flash 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.