Claude Opus 4.6 vs Gemini 2.0 Flash
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Opus 4.6 by Anthropic wins on 10 of 15 benchmarks against Gemini 2.0 Flash by Google, which leads on 5. 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, Claude Opus 4.6 scores 1496 on Chatbot Arena ELO compared to Gemini 2.0 Flash's 1240, while Claude Opus 4.6 scores 82.0% on MMLU-Pro compared to Gemini 2.0 Flash's 66.0%, while Claude Opus 4.6 scores 91.0% on IFEval compared to Gemini 2.0 Flash's 86.6%.
Coding: In coding, Claude Opus 4.6 scores 93.5% on HumanEval+ compared to Gemini 2.0 Flash's 76.0%, while Claude Opus 4.6 scores 80.8% on SWE-bench Verified compared to Gemini 2.0 Flash's 28.0%, while Claude Opus 4.6 scores 72.0% on LiveCodeBench compared to Gemini 2.0 Flash's 32.0%.
Math: In math, Claude Opus 4.6 scores 92.0% on MATH compared to Gemini 2.0 Flash's 68.0%, while Claude Opus 4.6 scores 97.0% on GSM8K compared to Gemini 2.0 Flash's 86.0%.
Reasoning: In reasoning, Claude Opus 4.6 scores 91.3% on GPQA Diamond compared to Gemini 2.0 Flash's 38.0%, while Claude Opus 4.6 scores 60.0% on ARC-AGI compared to Gemini 2.0 Flash's 18.0%.
Context: In context, Gemini 2.0 Flash scores 1.0M on Context Length compared to Claude Opus 4.6's 200K.
Pricing Comparison
Claude Opus 4.6 costs $5.0/1M input tokens and $25.0/1M output tokens, while Gemini 2.0 Flash costs $0.10/1M input and $0.40/1M output. Gemini 2.0 Flash is the more affordable option for API usage.
Speed Comparison
Claude Opus 4.6 generates output at 68 tok/s compared to Gemini 2.0 Flash's 220 tok/s, and the time to first token is 1680 ms for Claude Opus 4.6 versus 85 ms for Gemini 2.0 Flash. Gemini 2.0 Flash delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math, Claude Opus 4.6 has the edge. For those who value affordability and speed, Gemini 2.0 Flash is the stronger choice.
View Individual Model Pages
Claude Opus 4.6 vs Gemini 2.0 Flash — FAQ
Which is better, Claude Opus 4.6 or Gemini 2.0 Flash?
Claude Opus 4.6 wins on more benchmarks overall (10 vs 5). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Opus 4.6 compare to Gemini 2.0 Flash for coding?
Claude Opus 4.6 is better for coding, scoring 80.8% on SWE-bench Verified compared to 28.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Opus 4.6 cheaper than Gemini 2.0 Flash?
Yes, Gemini 2.0 Flash is cheaper. Claude Opus 4.6 costs $5.0/1M input and $25.0/1M output tokens. Gemini 2.0 Flash costs $0.10/1M input and $0.40/1M output tokens.
Which is faster, Claude Opus 4.6 or Gemini 2.0 Flash?
Gemini 2.0 Flash is faster, generating output at 220 tok/s compared to 68 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Opus 4.6 vs Gemini 2.0 Flash 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.