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2026 Comparison

DeepSeek vs Kimi

A detailed side-by-side comparison of DeepSeek and Kimi — capabilities, strengths, and which AI is best for your needs.

How do DeepSeek and Kimi compare?

DeepSeek by DeepSeek and Kimi by Moonshot AI are two of the leading AI models available today. While both are powerful, they take different approaches and excel in different areas.

DeepSeek is built around Fully open source, while Kimi focuses on Largest context window (2M tokens). Below we compare them across key capabilities to help you choose the right one for your tasks.

DeepSeek vs Kimi

Feature DeepSeek Kimi
Provider DeepSeek Moonshot AI
Latest Model DeepSeek R1 Kimi K2
Release Year 2025 2025
Context Window 128K tokens 2M tokens
Pricing Free / API pay-per-use Free / API pay-per-use
Open Source Yes No
Multimodal No No
Web Access Yes Yes
API Available Yes Yes
Thinking Mode Yes No
Image Generation No No
Code Execution No No
File Upload Yes Yes
Voice Mode No No

Capability Ratings

DeepSeek
Reasoning
5/5
Coding
5/5
Creative Writing
3/5
Speed
4/5
Multilingual
4/5
Math
5/5
Kimi
Reasoning
4/5
Coding
4/5
Creative Writing
3/5
Speed
3/5
Multilingual
3/5
Math
4/5

Strengths & Limitations

DeepSeek
Strengths
  • Fully open source
  • Top-tier coding and math
  • Chain-of-thought reasoning (R1)
Limitations
  • Limited multimodal capabilities
  • Creative writing less refined
Best For
Coding Math Chain-of-thought reasoning Open-source development
Kimi
Strengths
  • Largest context window (2M tokens)
  • Best for document analysis
  • Strong Chinese-English bilingual
Limitations
  • Slower on complex tasks
  • Limited multilingual beyond CN/EN
Best For
Long document analysis Research papers Codebase review Summarization

Which should you choose?

Both DeepSeek and Kimi are excellent AI assistants, but they serve different needs. The best choice depends on your specific use case.

The good news? You can try both for free right here on ChatGPT.org and decide for yourself which one works best for you.

Choose DeepSeek if:

  • Coding
  • Math
  • Chain-of-thought reasoning
  • Open-source development

Choose Kimi if:

  • Long document analysis
  • Research papers
  • Codebase review
  • Summarization
Try DeepSeek Try Kimi

Frequently Asked Questions

It depends on your needs. DeepSeek excels at Coding, Math, while Kimi is stronger at Long document analysis, Research papers. Both are top-tier AI models.

Yes, both DeepSeek and Kimi are available for free on chatgpt.org. No registration required.

DeepSeek has a slight edge in coding tasks, but both models handle code generation, debugging, and explanation very well.

Kimi has a larger context window (2M), compared to DeepSeek's 128K. This matters for long documents.

DeepSeek generally responds faster, though both models deliver quick responses for most tasks.

No. DeepSeek is made by DeepSeek and Kimi is made by Moonshot AI. They use different architectures and have different strengths.

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