Gemini 3.6 Flash vs o3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.6 Flash by Google wins on 7 of 7 benchmarks against o3 by OpenAI, which leads on 0. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Coding: In coding, Gemini 3.6 Flash scores 1305 on Design Arena ELO compared to o3's 1074, while Gemini 3.6 Flash scores 1312 on Website Arena ELO compared to o3's 1048.
Reasoning: In reasoning, Gemini 3.6 Flash scores 92.8% on GPQA Diamond compared to o3's 83.3%.
Context: In context, Gemini 3.6 Flash scores 1.0M on Context Length compared to o3's 200K.
Pricing Comparison
Gemini 3.6 Flash costs $0.75/1M input tokens and $3.8/1M output tokens, while o3 costs $2.0/1M input and $8.0/1M output. Gemini 3.6 Flash is the more affordable option for API usage.
Verdict
Gemini 3.6 Flash leads across the board in affordability, making it the stronger overall choice in this comparison.
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Gemini 3.6 Flash vs o3 — FAQ
Which is better, Gemini 3.6 Flash or o3?
Gemini 3.6 Flash wins on more benchmarks overall (7 vs 0). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3.6 Flash compare to o3 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Gemini 3.6 Flash cheaper than o3?
Yes, Gemini 3.6 Flash is cheaper. Gemini 3.6 Flash costs $0.75/1M input and $3.8/1M output tokens. o3 costs $2.0/1M input and $8.0/1M output tokens.
Which is faster, Gemini 3.6 Flash or o3?
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 Gemini 3.6 Flash vs o3 comparison cover?
This comparison covers 7 benchmarks including GPQA Diamond, Input Cost, Output Cost, Context Length, Cached Input Cost, Design Arena ELO, Website Arena ELO. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.