Gemini 3.1 Pro vs Grok 4
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 15 of 15 benchmarks against Grok 4 by xAI, which leads on 0. 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 Grok 4's 1430, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to Grok 4's 87.0%.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to Grok 4's 90.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to Grok 4's 72.0%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to Grok 4's 65.0%.
Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to Grok 4's 91.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to Grok 4's 97.0%, while Gemini 3.1 Pro scores 95.0% on AIME 2025 compared to Grok 4's 93.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to Grok 4's 87.0%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to Grok 4's 50.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to Grok 4's 256K.
Pricing Comparison
Gemini 3.1 Pro costs $2.0/1M input tokens and $12.0/1M output tokens, while Grok 4 costs $3.0/1M input and $15.0/1M 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 Grok 4's 55 tok/s, and the time to first token is 420 ms for Gemini 3.1 Pro versus 500 ms for Grok 4. Gemini 3.1 Pro delivers faster throughput.
Verdict
Gemini 3.1 Pro leads across the board in coding, general intelligence, math, affordability, speed, making it the stronger overall choice in this comparison.
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Gemini 3.1 Pro vs Grok 4 — FAQ
Which is better, Gemini 3.1 Pro or Grok 4?
Gemini 3.1 Pro wins on more benchmarks overall (15 vs 0). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 3.1 Pro compare to Grok 4 for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 72.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Gemini 3.1 Pro cheaper than Grok 4?
Yes, Gemini 3.1 Pro is cheaper. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens. Grok 4 costs $3.0/1M input and $15.0/1M output tokens.
Which is faster, Gemini 3.1 Pro or Grok 4?
Gemini 3.1 Pro 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 3.1 Pro vs Grok 4 comparison cover?
This comparison covers 15 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.