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DeepSeek V3 vs Gemini 3.1 Pro

A detailed comparison of DeepSeek V3 (DeepSeek) and Gemini 3.1 Pro (Google) across pricing, performance, and features.

Pricing Comparison

MetricDeepSeek V3Gemini 3.1 ProDifference
Input / 1M tokens$0.14$2.00+1329%
Output / 1M tokens$0.28$12.00+4186%
Context window164K1M
Max output16.384K64K

Benchmark Comparison

BenchmarkDeepSeek V3Gemini 3.1 Pro
MMLU-Pro78%91%
HumanEval89%95%
GPQA94.3%

Capabilities

CapabilityDeepSeek V3Gemini 3.1 Pro
audio
code
reasoning
text
tool-use
vision

DeepSeek V3 Strengths

  • Cheapest capable model available
  • Strong coding performance
  • Open-source

DeepSeek V3 Weaknesses

  • No vision support
  • Smaller context than competitors
  • China-based — availability concerns

Gemini 3.1 Pro Strengths

  • #1 on 12 of 18 tracked benchmarks
  • 94.3% GPQA Diamond — highest of any model
  • Same price as Gemini 3 Pro (free upgrade)
  • 1M context with configurable thinking levels

Gemini 3.1 Pro Weaknesses

  • Still in preview
  • Context-tiered pricing ($4/$18 above 200K)

Quick Verdict

Best value: DeepSeek V3 is the more affordable option at $0.14/$0.28 per 1M tokens.

Higher benchmarks: Gemini 3.1 Pro scores higher on average across available benchmarks (93.4% avg).

Larger context: Gemini 3.1 Pro supports 1M tokens.

Choose DeepSeek V3 if cost matters most. Choose Gemini 3.1 Pro if you need the best possible quality for complex tasks.

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