Gemini 2.5 Pro vs Grok 3
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 2.5 Pro by Google wins on 11 of 16 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 2.5 Pro scores 1465 on Chatbot Arena ELO compared to Grok 3's 1402, while Gemini 2.5 Pro scores 84.0% on MMLU-Pro compared to Grok 3's 74.0%.
Coding: In coding, Gemini 2.5 Pro scores 89.0% on HumanEval+ compared to Grok 3's 82.0%, while Gemini 2.5 Pro scores 63.8% on SWE-bench Verified compared to Grok 3's 42.0%, while Grok 3 scores 79.4% on LiveCodeBench compared to Gemini 2.5 Pro's 58.0%, while Gemini 2.5 Pro scores 1164 on Design Arena ELO compared to Grok 3's 1089, while Gemini 2.5 Pro scores 1179 on Website Arena ELO compared to Grok 3's 1101.
Math: In math, Gemini 2.5 Pro scores 88.0% on MATH compared to Grok 3's 82.0%, while Gemini 2.5 Pro scores 95.5% on GSM8K compared to Grok 3's 93.0%.
Reasoning: In reasoning, Grok 3 scores 84.6% on GPQA Diamond compared to Gemini 2.5 Pro's 79.9%, while Gemini 2.5 Pro scores 48.0% on ARC-AGI compared to Grok 3's 28.0%.
Context: In context, both score 1.0M on Context Length.
Pricing Comparison
Gemini 2.5 Pro costs $1.3/1M input tokens and $10.0/1M output tokens, while Grok 3 costs $3.0/1M input and $15.0/1M output. Gemini 2.5 Pro is the more affordable option for API usage.
Speed Comparison
Gemini 2.5 Pro generates output at 55 tok/s compared to Grok 3's 65 tok/s, and the time to first token is 500 ms for Gemini 2.5 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 2.5 Pro has the edge. For those who value speed, Grok 3 is the stronger choice.
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Gemini 2.5 Pro vs Grok 3 — FAQ
Which is better, Gemini 2.5 Pro or Grok 3?
Gemini 2.5 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 2.5 Pro compare to Grok 3 for coding?
Gemini 2.5 Pro is better for coding, scoring 63.8% on SWE-bench Verified compared to 42.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Gemini 2.5 Pro cheaper than Grok 3?
Yes, Gemini 2.5 Pro is cheaper. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens. Grok 3 costs $3.0/1M input and $15.0/1M output tokens.
Which is faster, Gemini 2.5 Pro or Grok 3?
Grok 3 is faster, generating output at 65 tok/s compared to 55 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemini 2.5 Pro vs Grok 3 comparison cover?
This comparison covers 16 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, SWE-bench Verified, GPQA Diamond, Output Speed, Time to First Token, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.