Model Comparison
DeepSeek-V2.5 vs Kimi-k1.5Which is better in 2026?
Kimi-k1.5 significantly outperforms across most benchmarks.
Verdict: DeepSeek-V2.5 vs Kimi-k1.5 — which is better?
DeepSeek-V2.5 (by DeepSeek) and Kimi-k1.5 (by Moonshot AI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
DeepSeek-V2.5 outperforms in 0 benchmarks, while Kimi-k1.5 is better at 1 benchmark (MMLU). Kimi-k1.5 significantly outperforms across most benchmarks.
Choose DeepSeek-V2.5 if…
- you need open weights you can self-host or fine-tune
Choose Kimi-k1.5 if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you want the most recent training data — it shipped Jan 2025
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V2.5 outperforms in 0 benchmarks, while Kimi-k1.5 is better at 1 benchmark (MMLU).
Kimi-k1.5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only DeepSeek-V2.5 specifies input context (8,192 tokens). Only DeepSeek-V2.5 specifies output context (8,192 tokens).
Input Capabilities
Supported data types and modalities
Kimi-k1.5 supports multimodal inputs, whereas DeepSeek-V2.5 does not.
Kimi-k1.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V2.5
Kimi-k1.5
License
Usage and distribution terms
DeepSeek-V2.5 is licensed under deepseek, while Kimi-k1.5 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
deepseek
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
DeepSeek-V2.5 was released on 2024-05-08, while Kimi-k1.5 was released on 2025-01-20.
Kimi-k1.5 is 9 months newer than DeepSeek-V2.5.
May 8, 2024
2.2 years ago
Jan 20, 2025
1.5 years ago
8mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Key Takeaways
DeepSeek-V2.5
View detailsDeepSeek
Kimi-k1.5
View detailsMoonshot AI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against DeepSeek-V2.5 and Kimi-k1.5 side-by-side, then vote on the output you prefer.
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FAQ
Common questions about DeepSeek-V2.5 vs Kimi-k1.5.