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Kimi K2.5 vs Grok 3

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

Spec🧠 Kimi K2.5🧠 Grok 3
ProviderMoonshot AIxAI
Category🧠 Reasoning🧠 Reasoning
Parameters1.0TUndisclosed
Context Window128K tokens128K tokens
License🔓 open🔒 proprietary
Input Price$0.60$3
Output Price$2.40$15
API Available✅✅
ReleasedJul 1, 2025Feb 17, 2025
Trending Score🔥 81🔥 77

Kimi K2.5 Strengths

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

Grok 3 Strengths

  • ✓Real-time X/Twitter data
  • ✓Strong reasoning
  • ✓Unique personality
  • ✓128K context

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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About Grok 3

xAI's conversational AI with real-time X/Twitter integration, strong reasoning, and a personality.

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❓ Frequently Asked Questions

Which is better, Kimi K2.5 or Grok 3?

It depends on your use case. Kimi K2.5 (Moonshot AI) has a trending score of 81, while Grok 3 (xAI) scores 77. Kimi K2.5 costs $0.60 per 1M input tokens. Check the comparison table above for detailed specs.

Is Kimi K2.5 cheaper than Grok 3?

Kimi K2.5 costs $0.60 input / $2.40 output per 1M tokens, while Grok 3 costs $3 input / $15 output.

Can I use both Kimi K2.5 and Grok 3?

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