Claude Opus 5 vs Gemini 3 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3 Pro by Google wins on 3 of 6 benchmarks against Claude Opus 5 by Anthropic, which leads on 2. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Coding: In coding, Claude Opus 5 scores 1355 on Design Arena ELO compared to Gemini 3 Pro's 1259, while Claude Opus 5 scores 1319 on Website Arena ELO compared to Gemini 3 Pro's 1265.
Reasoning: In reasoning, Gemini 3 Pro scores 91.9% on GPQA Diamond compared to Claude Opus 5's 87.0%.
Context: In context, both score 1.0M on Context Length.
Pricing Comparison
Claude Opus 5 costs $5.0/1M input tokens and $25.0/1M output tokens, while Gemini 3 Pro costs $2.0/1M input and $12.0/1M output. Gemini 3 Pro is the more affordable option for API usage.
Verdict
Gemini 3 Pro leads across the board in affordability, making it the stronger overall choice in this comparison.
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Claude Opus 5 vs Gemini 3 Pro — FAQ
Which is better, Claude Opus 5 or Gemini 3 Pro?
Gemini 3 Pro wins on more benchmarks overall (3 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 5 compare to Gemini 3 Pro for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Claude Opus 5 cheaper than Gemini 3 Pro?
Yes, Gemini 3 Pro is cheaper. Claude Opus 5 costs $5.0/1M input and $25.0/1M output tokens. Gemini 3 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, Claude Opus 5 or Gemini 3 Pro?
Output speed data is not available for both models. Check the speed section of the comparison above for available performance data.
What benchmarks does the Claude Opus 5 vs Gemini 3 Pro comparison cover?
This comparison covers 6 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, Design Arena ELO, Website Arena ELO. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.