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AnthropicClaude Sonnet 4.6VSGoogleGemini 3.6 Flash

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

Standardized reasoning and coding benchmarks are currently pending verification for one or both of these models. We recommend testing Claude Sonnet 4.6 and Gemini 3.6 Flash directly in their respective provider playgrounds to see which fits your specific prompt styles best.
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Model Specs

Claude Sonnet 4.6

Benchmarks & Scores

Coding (swe-bench-pro)
N/A

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)
79.9%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)
$6.00Input: $3.00 | Output: $15.00
Context Window
1.05M tokens
Model Specs

Gemini 3.6 Flash

Benchmarks & Scores

Coding (swe-bench-pro)
58.7%

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)Winner (+13.1%)
93%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)2.0x cheaper
$3.00Input: $1.50 | Output: $7.50
Context Window
1.05M tokens

Frequently Asked Questions about Claude Sonnet 4.6 vs Gemini 3.6 Flash

Gemini 3.6 Flash is cheaper than Claude Sonnet 4.6. Gemini 3.6 Flash has a blended cost of $3.00/1M tokens, which is about 2.0x cheaper than Claude Sonnet 4.6 at $6.00/1M tokens.

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