tokevenClaudevsGemini
Claude Sonnet 4.6 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 4.6
Mid-tierGemini 3 Flash
Fast / BudgetInput $/MTok
$3.00
$0.50
Output $/MTok
$15.00
$3.00
Cache discount
90% off
90% off
Context
1M
1.0M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
57
vs
65
Code Review
95
vs
62
Summarization
61
vs
83
Q&A
88
vs
82
Extraction
71
vs
86
Reasoning
85
vs
58
Classification
84
vs
88
Creative Writing
69
vs
52
Claude Sonnet 4.6
Gemini 3 Flash
Guidance
When to use Claude Sonnet 4.6 vs Gemini 3 Flash
Choose Claude Sonnet 4.6 when...
- -You need strong code review (confidence 95 vs 62)
- -You need strong q&a (confidence 88 vs 82)
- -You need strong reasoning (confidence 85 vs 58)
- -You need strong creative writing (confidence 69 vs 52)
Choose Gemini 3 Flash when...
- -You need strong classification (confidence 88 vs 84)
- -You need strong extraction (confidence 86 vs 71)
- -You need strong summarization (confidence 83 vs 61)
- -You need strong code generation (confidence 65 vs 57)
- -Cost matters: 83% cheaper on input tokens
- -You need a larger context window (1.0M vs 1M)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 4.6
Gemini 3 Flash
100K tokens
$0.66
$0.13Cheaper
1M tokens
$6.60
$1.25Cheaper
10M tokens
$66.00
$12.50Cheaper
FAQ
When should I use Claude Sonnet 4.6 instead of Gemini 3 Flash?
Claude Sonnet 4.6 outperforms Gemini 3 Flash for Code Review, Q&A, Reasoning. It costs $3.00/$15.00 per million tokens (input/output).
Is Gemini 3 Flash cheaper than Claude Sonnet 4.6?
Yes. Gemini 3 Flash input costs $0.50/MTok vs $3.00/MTok for Claude Sonnet 4.6, saving 83% on input.
What are the context window sizes for Claude Sonnet 4.6 and Gemini 3 Flash?
Claude Sonnet 4.6 has a 1M token context window. Gemini 3 Flash has a 1.0M 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 Sonnet 4.6 and Gemini 3 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.