DeepSeek V3.1 vs Gemini 3.1 Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Gemini 3.1 Pro by Google wins on 11 of 14 benchmarks against DeepSeek V3.1 by DeepSeek, which leads on 2. 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 DeepSeek V3.1's 1340, while Gemini 3.1 Pro scores 92.6% on MMLU-Pro compared to DeepSeek V3.1's 78.0%.
Coding: In coding, Gemini 3.1 Pro scores 93.0% on HumanEval+ compared to DeepSeek V3.1's 84.0%, while Gemini 3.1 Pro scores 80.6% on SWE-bench Verified compared to DeepSeek V3.1's 46.0%, while Gemini 3.1 Pro scores 75.0% on LiveCodeBench compared to DeepSeek V3.1's 48.0%.
Math: In math, Gemini 3.1 Pro scores 93.0% on MATH compared to DeepSeek V3.1's 82.0%, while Gemini 3.1 Pro scores 98.0% on GSM8K compared to DeepSeek V3.1's 92.0%.
Reasoning: In reasoning, Gemini 3.1 Pro scores 94.1% on GPQA Diamond compared to DeepSeek V3.1's 55.0%, while Gemini 3.1 Pro scores 77.1% on ARC-AGI compared to DeepSeek V3.1's 35.0%.
Context: In context, Gemini 3.1 Pro scores 1.0M on Context Length compared to DeepSeek V3.1's 131K.
Pricing Comparison
DeepSeek V3.1 costs $0.14/1M input tokens and $0.28/1M output tokens, while Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output. DeepSeek V3.1 is the more affordable option for API usage.
Speed Comparison
DeepSeek V3.1 generates output at 65 tok/s compared to Gemini 3.1 Pro's 65 tok/s, and the time to first token is 450 ms for DeepSeek V3.1 versus 420 ms for Gemini 3.1 Pro. Both models offer similar output speed.
Verdict
For developers prioritizing affordability, DeepSeek V3.1 has the edge. For those who value coding and general intelligence and math, Gemini 3.1 Pro is the stronger choice.
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DeepSeek V3.1 vs Gemini 3.1 Pro — FAQ
Which is better, DeepSeek V3.1 or Gemini 3.1 Pro?
Gemini 3.1 Pro wins on more benchmarks overall (11 vs 2). However, the best choice depends on your specific needs — each model excels in different areas.
How does DeepSeek V3.1 compare to Gemini 3.1 Pro for coding?
Gemini 3.1 Pro is better for coding, scoring 80.6% on SWE-bench Verified compared to 46.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is DeepSeek V3.1 cheaper than Gemini 3.1 Pro?
Yes, DeepSeek V3.1 is cheaper. DeepSeek V3.1 costs $0.14/1M input and $0.28/1M output tokens. Gemini 3.1 Pro costs $2.0/1M input and $12.0/1M output tokens.
Which is faster, DeepSeek V3.1 or Gemini 3.1 Pro?
Both models generate output at the same speed of 65 tok/s.
What benchmarks does the DeepSeek V3.1 vs Gemini 3.1 Pro comparison cover?
This comparison covers 14 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.