Claude Sonnet 5 vs Gemini 3 Pro

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

Claude Sonnet 5 by Anthropic wins on 3 of 6 benchmarks against Gemini 3 Pro by Google, which leads on 1. 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 Sonnet 5 scores 1272 on Design Arena ELO compared to Gemini 3 Pro's 1259, while Claude Sonnet 5 scores 1289 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 Sonnet 5's 81.4%.

Context: In context, both score 1.0M on Context Length.

Pricing Comparison

Claude Sonnet 5 costs $2.0/1M input tokens and $10.0/1M output tokens, while Gemini 3 Pro costs $2.0/1M input and $12.0/1M output. Both models are priced identically for input tokens.

Verdict

Claude Sonnet 5 and Gemini 3 Pro are closely matched. The best choice depends on your specific use case and priorities.

Claude Sonnet 5 vs Gemini 3 Pro — FAQ

Which is better, Claude Sonnet 5 or Gemini 3 Pro?

Claude Sonnet 5 wins on more benchmarks overall (3 vs 1). However, the best choice depends on your specific needs — each model excels in different areas.

How does Claude Sonnet 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 Sonnet 5 cheaper than Gemini 3 Pro?

Both models are priced the same at $2.0/1M input tokens. Claude Sonnet 5 output costs $10.0/1M and Gemini 3 Pro output costs $12.0/1M.

Which is faster, Claude Sonnet 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 Sonnet 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.