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DeepSeek V3.1 vs Kimi K2.5

Side-by-side comparison of specs, pricing, and capabilities

Spec🧠 DeepSeek V3.1🧠 Kimi K2.5
ProviderDeepSeekMoonshot AI
Category🧠 Reasoning🧠 Reasoning
Parameters671B1.0T
Context Window128K tokens128K tokens
License🔓 open🔓 open
Input Price$0.27$0.60
Output Price$1.10$2.40
API Available✅✅
ReleasedJun 1, 2025Jul 1, 2025
Trending Score🔥 88🔥 81

DeepSeek V3.1 Strengths

  • ✓Incredible cost efficiency
  • ✓Open weights
  • ✓Top-tier math/coding
  • ✓MoE architecture

Kimi K2.5 Strengths

  • ✓1T+ parameters (MoE)
  • ✓Open weights
  • ✓Strong reasoning
  • ✓Good coding

About DeepSeek V3.1

671B MoE model with only 37B active parameters. Open-weight, excels at math, coding, and Chinese language tasks.

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About Kimi K2.5

1T+ MoE architecture with strong long-context and multi-step reasoning. Open weights, competitive with top models.

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❓ Frequently Asked Questions

Which is better, DeepSeek V3.1 or Kimi K2.5?

It depends on your use case. DeepSeek V3.1 (DeepSeek) has a trending score of 88, while Kimi K2.5 (Moonshot AI) scores 81. DeepSeek V3.1 costs $0.27 per 1M input tokens. Check the comparison table above for detailed specs.

Is DeepSeek V3.1 cheaper than Kimi K2.5?

DeepSeek V3.1 costs $0.27 input / $1.10 output per 1M tokens, while Kimi K2.5 costs $0.60 input / $2.40 output.

Can I use both DeepSeek V3.1 and Kimi K2.5?

Yes! Many developers use multiple models for different tasks. You might use one for complex reasoning and another for high-volume, cost-sensitive workloads.