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AnthropicClaude Sonnet 4.6VSGoogleGemini 3.1 Flash-Lite

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 3.1 Flash-Lite 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

complex codebases, multi-file repositories, and architectural planning

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 3.1 Flash-Lite

Benchmarks & Scores

Coding (live-code-bench)
72%

scripting single-file apps or clearly defined functions

Reasoning (gpqa-diamond)Winner (+2.3%)
82.2%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)10.7x cheaper
$0.56Input: $0.25 | Output: $1.50
Context Window
1.05M tokens

Frequently Asked Questions about Claude Sonnet 4.6 vs Gemini 3.1 Flash-Lite

Gemini 3.1 Flash-Lite is cheaper than Claude Sonnet 4.6. Gemini 3.1 Flash-Lite has a blended cost of $0.56/1M tokens, which is about 10.7x cheaper than Claude Sonnet 4.6 at $6.00/1M tokens.

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