Model Comparison
Kimi K3 vs Mistral Small 3 24B InstructWhich is better in 2026?
Kimi K3 significantly outperforms across most benchmarks. Mistral Small 3 24B Instruct is 68.6x cheaper per token.
Verdict: Kimi K3 vs Mistral Small 3 24B Instruct — which is better?
Kimi K3 (by Moonshot AI) and Mistral Small 3 24B Instruct (by Mistral 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.
Kimi K3 outperforms in 1 benchmarks (GPQA), while Mistral Small 3 24B Instruct is better at 0 benchmarks. Kimi K3 significantly outperforms across most benchmarks.
On price, Mistral Small 3 24B Instruct is roughly 68.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Kimi K3 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Choose Kimi K3 if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Jul 2026
Choose Mistral Small 3 24B Instruct if…
- cost matters — it's about 68.6x cheaper per token
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K3 outperforms in 1 benchmarks (GPQA), while Mistral Small 3 24B Instruct is better at 0 benchmarks.
Kimi K3 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Kimi K3 ($3.00/1M tokens) is 42.9x more expensive than Mistral Small 3 24B Instruct ($0.07/1M tokens).
For output processing, Kimi K3 ($15.00/1M tokens) is 107.1x more expensive than Mistral Small 3 24B Instruct ($0.14/1M tokens).
In conclusion, Kimi K3 is more expensive than Mistral Small 3 24B Instruct.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
Kimi K3 has 2776.0B more parameters than Mistral Small 3 24B Instruct, making it 11566.7% larger.
Context Window
Maximum input and output token capacity
Kimi K3 accepts 1,048,576 input tokens compared to Mistral Small 3 24B Instruct's 32,000 tokens. Kimi K3 can generate longer responses up to 1,048,576 tokens, while Mistral Small 3 24B Instruct is limited to 32,000 tokens.
Input Capabilities
Supported data types and modalities
Kimi K3 supports multimodal inputs, whereas Mistral Small 3 24B Instruct does not.
Kimi K3 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Kimi K3
Mistral Small 3 24B Instruct
Release Timeline
When each model was launched
Kimi K3 was released on 2026-07-16, while Mistral Small 3 24B Instruct was released on 2025-01-30.
Kimi K3 is 18 months newer than Mistral Small 3 24B Instruct.
Jul 16, 2026
1 weeks ago
1.5yr newerJan 30, 2025
1.5 years ago
Knowledge Cutoff
When training data ends
Mistral Small 3 24B Instruct has a documented knowledge cutoff of 2023-10-01, while Kimi K3's cutoff date is not specified.
We can confirm Mistral Small 3 24B Instruct's training data extends to 2023-10-01, but cannot make a direct comparison without Kimi K3's cutoff date.
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Oct 2023
Provider Availability
Kimi K3 is available from Moonshot AI. Mistral Small 3 24B Instruct is available from DeepInfra, Mistral AI.
Kimi K3
Mistral Small 3 24B Instruct
Outputs Comparison
Key Takeaways
Kimi K3
View detailsMoonshot AI
Mistral Small 3 24B Instruct
View detailsMistral AI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Kimi K3 and Mistral Small 3 24B Instruct side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Kimi K3 vs Mistral Small 3 24B Instruct.