Model Comparison
Devstral Medium vs Kimi K3Which is better in 2026?
Comparing Devstral Medium and Kimi K3 across benchmarks, pricing, and capabilities.
Verdict: Devstral Medium vs Kimi K3 — which is better?
Devstral Medium (by Mistral AI) and Kimi K3 (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.
On price, Devstral Medium is roughly 7.5x 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 Devstral Medium if…
- cost matters — it's about 7.5x cheaper per token
Choose Kimi K3 if…
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Jul 2026
Performance Benchmarks
Comparative analysis across standard metrics
Devstral Medium and Kimi K3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Devstral Medium ($0.40/1M tokens) is 7.5x cheaper than Kimi K3 ($3.00/1M tokens).
For output processing, Devstral Medium ($2.00/1M tokens) is 7.5x cheaper than Kimi K3 ($15.00/1M tokens).
In conclusion, Kimi K3 is more expensive than Devstral Medium.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Kimi K3 accepts 1,048,576 input tokens compared to Devstral Medium's 128,000 tokens. Kimi K3 can generate longer responses up to 1,048,576 tokens, while Devstral Medium is limited to 128,000 tokens.
Input Capabilities
Supported data types and modalities
Kimi K3 supports multimodal inputs, whereas Devstral Medium does not.
Kimi K3 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Devstral Medium
Kimi K3
Release Timeline
When each model was launched
Devstral Medium was released on 2025-07-10, while Kimi K3 was released on 2026-07-16.
Kimi K3 is 12 months newer than Devstral Medium.
Jul 10, 2025
1.0 years ago
Jul 16, 2026
1 weeks ago
1.0yr newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Devstral Medium is available from Mistral AI. Kimi K3 is available from Moonshot AI.
Devstral Medium
Kimi K3
Outputs Comparison
Key Takeaways
Devstral Medium
View detailsMistral AI
Kimi K3
View detailsMoonshot AI
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Devstral Medium and Kimi K3 side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Devstral Medium vs Kimi K3.