Gemini 3 Pro vs Grok 3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3 Pro by Google wins on 11 of 15 benchmarks against Grok 3 by xAI, which leads on 4. 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 Grok 3's 1402, while Gemini 3 Pro scores 89.8% on MMLU-Pro compared to Grok 3's 74.0%.
Coding: In coding, Gemini 3 Pro scores 91.0% on HumanEval+ compared to Grok 3's 82.0%, while Gemini 3 Pro scores 65.0% on SWE-bench Verified compared to Grok 3's 42.0%, while Grok 3 scores 79.4% on LiveCodeBench compared to Gemini 3 Pro's 72.0%.
Math: In math, Gemini 3 Pro scores 92.0% on MATH compared to Grok 3's 82.0%, while Gemini 3 Pro scores 97.5% on GSM8K compared to Grok 3's 93.0%, while Gemini 3 Pro scores 95.0% on AIME 2025 compared to Grok 3's 93.3%.
Reasoning: In reasoning, Gemini 3 Pro scores 91.9% on GPQA Diamond compared to Grok 3's 84.6%, while Gemini 3 Pro scores 54.0% on ARC-AGI compared to Grok 3's 28.0%.
Context: In context, Grok 3 scores 1.0M on Context Length compared to Gemini 3 Pro's 1.0M.
Pricing Comparison
Gemini 3 Pro costs $2.0/1M input tokens and $12.0/1M output tokens, while Grok 3 costs $3.0/1M input and $15.0/1M output. Gemini 3 Pro is the more affordable option for API usage.
Speed Comparison
Gemini 3 Pro generates output at 60 tok/s compared to Grok 3's 65 tok/s, and the time to first token is 450 ms for Gemini 3 Pro versus 400 ms for Grok 3. Grok 3 delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math and affordability, Gemini 3 Pro has the edge. For those who value speed, Grok 3 is the stronger choice.
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Gemini 3 Pro vs Grok 3 — FAQ
Which is better, Gemini 3 Pro or Grok 3?
Gemini 3 Pro wins on more benchmarks overall (11 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3 Pro compare to Grok 3 for coding?
Gemini 3 Pro is better for coding, scoring 65.0% on SWE-bench Verified compared to 42.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Gemini 3 Pro cheaper than Grok 3?
Yes, Gemini 3 Pro is cheaper. Gemini 3 Pro costs $2.0/1M input and $12.0/1M output tokens. Grok 3 costs $3.0/1M input and $15.0/1M output tokens.
Which is faster, Gemini 3 Pro or Grok 3?
Grok 3 is faster, generating output at 65 tok/s compared to 60 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemini 3 Pro vs Grok 3 comparison cover?
This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, LiveCodeBench, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.