Claude Sonnet 4.6 vs Gemini 3.1 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 15 of 15 benchmarks against Claude Sonnet 4.6 by Anthropic, which leads on 0. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Gemini 3.1 Pro scores 1501 on Chatbot Arena ELO compared to Claude Sonnet 4.6's 1395, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to Claude Sonnet 4.6's 84.0%, while Gemini 3.1 Pro scores 92.0% on IFEval compared to Claude Sonnet 4.6's 89.0%.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to Claude Sonnet 4.6's 91.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to Claude Sonnet 4.6's 79.6%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to Claude Sonnet 4.6's 65.0%.
Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to Claude Sonnet 4.6's 88.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to Claude Sonnet 4.6's 96.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to Claude Sonnet 4.6's 74.1%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to Claude Sonnet 4.6's 48.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to Claude Sonnet 4.6's 200K.
Pricing Comparison
Claude Sonnet 4.6 costs $3.0/1M input tokens and $15.0/1M output tokens, while Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output. Gemini 3.1 Pro is the more affordable option for API usage.
Speed Comparison
Claude Sonnet 4.6 generates output at 57 tok/s compared to Gemini 3.1 Pro's 65 tok/s, and the time to first token is 790 ms for Claude Sonnet 4.6 versus 420 ms for Gemini 3.1 Pro. Gemini 3.1 Pro delivers faster throughput.
Verdict
Gemini 3.1 Pro leads across the board in coding, general intelligence, math, affordability, speed, making it the stronger overall choice in this comparison.
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Claude Sonnet 4.6 vs Gemini 3.1 Pro — FAQ
Which is better, Claude Sonnet 4.6 or Gemini 3.1 Pro?
Gemini 3.1 Pro wins on more benchmarks overall (15 vs 0). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Sonnet 4.6 compare to Gemini 3.1 Pro for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 79.6%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Sonnet 4.6 cheaper than Gemini 3.1 Pro?
Yes, Gemini 3.1 Pro is cheaper. Claude Sonnet 4.6 costs $3.0/1M input and $15.0/1M output tokens. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, Claude Sonnet 4.6 or Gemini 3.1 Pro?
Gemini 3.1 Pro is faster, generating output at 65 tok/s compared to 57 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Sonnet 4.6 vs Gemini 3.1 Pro comparison cover?
This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, IFEval, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.