Model Comparison
Kimi K3 vs Magistral MediumWhich is better in 2026?
Kimi K3 significantly outperforms across most benchmarks.
Verdict: Kimi K3 vs Magistral Medium — which is better?
Kimi K3 (by Moonshot AI) and Magistral Medium (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 2 benchmarks (GPQA, Humanity's Last Exam), while Magistral Medium is better at 0 benchmarks. Kimi K3 significantly outperforms across most benchmarks.
Choose Kimi K3 if…
- you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
- you want the most recent training data — it shipped Jul 2026
Choose Magistral Medium if…
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K3 outperforms in 2 benchmarks (GPQA, Humanity's Last Exam), while Magistral Medium is better at 0 benchmarks.
Kimi K3 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Model Size
Parameter count comparison
Kimi K3 has 2776.0B more parameters than Magistral Medium, making it 11566.7% larger.
Context Window
Maximum input and output token capacity
Only Kimi K3 specifies input context (1,048,576 tokens). Only Kimi K3 specifies output context (1,048,576 tokens).
Input Capabilities
Supported data types and modalities
Both Kimi K3 and Magistral Medium support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Kimi K3
Magistral Medium
Release Timeline
When each model was launched
Kimi K3 was released on 2026-07-16, while Magistral Medium was released on 2025-06-10.
Kimi K3 is 13 months newer than Magistral Medium.
Jul 16, 2026
1 weeks ago
1.1yr newerJun 10, 2025
1.1 years ago
Knowledge Cutoff
When training data ends
Magistral Medium has a documented knowledge cutoff of 2025-06-01, while Kimi K3's cutoff date is not specified.
We can confirm Magistral Medium's training data extends to 2025-06-01, but cannot make a direct comparison without Kimi K3's cutoff date.
—
Jun 2025
Outputs Comparison
Key Takeaways
Kimi K3
View detailsMoonshot AI
Magistral Medium
View detailsMistral AI
No standout differentiators in the data we have for this pair.
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Kimi K3 and Magistral Medium side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Kimi K3 vs Magistral Medium.