Model Comparison
Kimi K2 Instruct vs MiMo-V2.5-ProWhich is better in 2026?
Kimi K2 Instruct shows notably better performance in the majority of benchmarks. Kimi K2 Instruct is 1.1x cheaper per token.
Verdict: Kimi K2 Instruct vs MiMo-V2.5-Pro — which is better?
Kimi K2 Instruct (by Moonshot AI) and MiMo-V2.5-Pro (by Xiaomi) 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.
Kimi K2 Instruct outperforms in 5 benchmarks (GPQA, LiveCodeBench v6, MMLU, MMLU-Pro, SWE-bench Verified (Agentless)), while MiMo-V2.5-Pro is better at 3 benchmarks (GSM8k, Humanity's Last Exam, MMLU-Redux). Kimi K2 Instruct shows notably better performance in the majority of benchmarks.
On price, Kimi K2 Instruct is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
MiMo-V2.5-Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Choose Kimi K2 Instruct if…
- you want the strongest raw capability — it leads on 5 of 8 shared benchmarks
- cost matters — it's about 1.1x cheaper per token
Choose MiMo-V2.5-Pro if…
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Apr 2026
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K2 Instruct outperforms in 5 benchmarks (GPQA, LiveCodeBench v6, MMLU, MMLU-Pro, SWE-bench Verified (Agentless)), while MiMo-V2.5-Pro is better at 3 benchmarks (GSM8k, Humanity's Last Exam, MMLU-Redux).
Kimi K2 Instruct shows notably better performance in the majority of benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Kimi K2 Instruct ($0.50/1M tokens) is 1.1x more expensive than MiMo-V2.5-Pro ($0.43/1M tokens).
For output processing, Kimi K2 Instruct ($0.50/1M tokens) is 1.7x cheaper than MiMo-V2.5-Pro ($0.87/1M tokens).
In conclusion, MiMo-V2.5-Pro is more expensive than Kimi K2 Instruct.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
MiMo-V2.5-Pro has 23.2B more parameters than Kimi K2 Instruct, making it 2.3% larger.
Context Window
Maximum input and output token capacity
MiMo-V2.5-Pro accepts 1,048,576 input tokens compared to Kimi K2 Instruct's 200,000 tokens. Kimi K2 Instruct can generate longer responses up to 200,000 tokens, while MiMo-V2.5-Pro is limited to 131,072 tokens.
License
Usage and distribution terms
Both models are licensed under MIT.
Both models share the same licensing terms, providing consistent usage rights.
MIT
Open weights
MIT
Open weights
Release Timeline
When each model was launched
Kimi K2 Instruct was released on 2025-07-11, while MiMo-V2.5-Pro was released on 2026-04-27.
MiMo-V2.5-Pro is 10 months newer than Kimi K2 Instruct.
Jul 11, 2025
1.0 years ago
Apr 27, 2026
2 months ago
9mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Kimi K2 Instruct is available from Fireworks, Novita. MiMo-V2.5-Pro is available from Xiaomi, DeepInfra, Novita.
Kimi K2 Instruct
MiMo-V2.5-Pro
Outputs Comparison
Key Takeaways
Kimi K2 Instruct
View detailsMoonshot AI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Kimi K2 Instruct and MiMo-V2.5-Pro side-by-side, then vote on the output you prefer.
| Feature | | |
|---|
FAQ
Common questions about Kimi K2 Instruct vs MiMo-V2.5-Pro.