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 9 of 14 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%.
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 84.0%, 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 (9 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 14 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.