Gemini 3 Flash vs Gemini 3 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3 Pro by Google wins on 9 of 15 benchmarks against Gemini 3 Flash by Google, which leads on 6. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Gemini 3 Pro scores 1492 on Chatbot Arena ELO compared to Gemini 3 Flash's 1473, while Gemini 3 Pro scores 89.8% on MMLU-Pro compared to Gemini 3 Flash's 88.6%, while Gemini 3 Pro scores 91.0% on IFEval compared to Gemini 3 Flash's 89.0%.
Coding: In coding, Gemini 3 Pro scores 91.0% on HumanEval+ compared to Gemini 3 Flash's 86.0%, while Gemini 3 Flash scores 78.0% on SWE-bench Verified compared to Gemini 3 Pro's 65.0%, while Gemini 3 Pro scores 72.0% on LiveCodeBench compared to Gemini 3 Flash's 55.0%.
Math: In math, Gemini 3 Pro scores 92.0% on MATH compared to Gemini 3 Flash's 85.0%, while Gemini 3 Pro scores 97.5% on GSM8K compared to Gemini 3 Flash's 95.0%.
Reasoning: In reasoning, Gemini 3 Pro scores 91.9% on GPQA Diamond compared to Gemini 3 Flash's 72.0%, while Gemini 3 Pro scores 54.0% on ARC-AGI compared to Gemini 3 Flash's 30.0%.
Context: In context, Gemini 3 Flash scores 1.0M on Context Length compared to Gemini 3 Pro's 1.0M.
Pricing Comparison
Gemini 3 Flash costs $0.50/1M input tokens and $3.0/1M output tokens, while Gemini 3 Pro costs $2.0/1M input and $12.0/1M output. Gemini 3 Flash is the more affordable option for API usage.
Speed Comparison
Gemini 3 Flash generates output at 200 tok/s compared to Gemini 3 Pro's 60 tok/s, and the time to first token is 100 ms for Gemini 3 Flash versus 450 ms for Gemini 3 Pro. Gemini 3 Flash delivers faster throughput.
Verdict
For developers prioritizing coding and affordability and speed, Gemini 3 Flash has the edge. For those who value general intelligence and math, Gemini 3 Pro is the stronger choice.
View Individual Model Pages
Gemini 3 Flash vs Gemini 3 Pro — FAQ
Which is better, Gemini 3 Flash or Gemini 3 Pro?
Gemini 3 Pro wins on more benchmarks overall (9 vs 6). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3 Flash compare to Gemini 3 Pro for coding?
Gemini 3 Flash is better for coding, scoring 78.0% on SWE-bench Verified compared to 65.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Gemini 3 Flash cheaper than Gemini 3 Pro?
Yes, Gemini 3 Flash is cheaper. Gemini 3 Flash costs $0.50/1M input and $3.0/1M output tokens. Gemini 3 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, Gemini 3 Flash or Gemini 3 Pro?
Gemini 3 Flash is faster, generating output at 200 tok/s compared to 60 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemini 3 Flash vs Gemini 3 Pro comparison cover?
This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, IFEval, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.