Claude 3 Opus 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 3 Opus 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 3 Opus's 1240, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to Claude 3 Opus's 68.0%, while Gemini 3.1 Pro scores 92.0% on IFEval compared to Claude 3 Opus's 82.0%.

Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to Claude 3 Opus's 78.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to Claude 3 Opus's 22.0%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to Claude 3 Opus's 32.0%.

Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to Claude 3 Opus's 68.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to Claude 3 Opus's 88.0%.

Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to Claude 3 Opus's 59.4%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to Claude 3 Opus's 8.0%.

Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to Claude 3 Opus's 200K.

Pricing Comparison

Claude 3 Opus costs $15.0/1M input tokens and $75.0/1M 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 3 Opus generates output at 25 tok/s compared to Gemini 3.1 Pro's 65 tok/s, and the time to first token is 800 ms for Claude 3 Opus 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.

Claude 3 Opus vs Gemini 3.1 Pro — FAQ

Which is better, Claude 3 Opus 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 3 Opus 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 22.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Claude 3 Opus cheaper than Gemini 3.1 Pro?

Yes, Gemini 3.1 Pro is cheaper. Claude 3 Opus costs $15.0/1M input and $75.0/1M output tokens. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens.

Which is faster, Claude 3 Opus or Gemini 3.1 Pro?

Gemini 3.1 Pro is faster, generating output at 65 tok/s compared to 25 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Claude 3 Opus 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.