Gemini 3.1 Pro vs o1
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 14 of 16 benchmarks against o1 by OpenAI, which leads on 1. 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, Gemini 3.1 Pro scores 1501 on Chatbot Arena ELO compared to o1's 1360, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to o1's 82.0%, while both score 92.0% on IFEval.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to o1's 89.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to o1's 48.9%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to o1's 55.0%.
Math: In math, o1 scores 94.8% on MATH compared to Gemini 3.1 Pro's 93.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to o1's 97.5%, while Gemini 3.1 Pro scores 95.0% on AIME 2025 compared to o1's 74.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to o1's 77.3%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to o1's 32.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to o1's 200K.
Pricing Comparison
Gemini 3.1 Pro costs $2.0/1M input tokens and $12.0/1M output tokens, while o1 costs $15.0/1M input and $60.0/1M output. Gemini 3.1 Pro is the more affordable option for API usage.
Speed Comparison
Gemini 3.1 Pro generates output at 65 tok/s compared to o1's 35 tok/s, and the time to first token is 420 ms for Gemini 3.1 Pro versus 1000 ms for o1. Gemini 3.1 Pro delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and affordability and speed, Gemini 3.1 Pro has the edge. For those who value math, o1 is the stronger choice.
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Gemini 3.1 Pro vs o1 — FAQ
Which is better, Gemini 3.1 Pro or o1?
Gemini 3.1 Pro wins on more benchmarks overall (14 vs 1). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3.1 Pro compare to o1 for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 48.9%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Gemini 3.1 Pro cheaper than o1?
Yes, Gemini 3.1 Pro is cheaper. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens. o1 costs $15.0/1M input and $60.0/1M output tokens.
Which is faster, Gemini 3.1 Pro or o1?
Gemini 3.1 Pro is faster, generating output at 65 tok/s compared to 35 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemini 3.1 Pro vs o1 comparison cover?
This comparison covers 16 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.