Kimi K3.1 Pro vs Mistral Small 3 24B Instruct
Kimi K3.1 Pro leads the LLM Stats Score 55.5 to 3.7. Mistral Small 3 24B Instruct is 69.6x cheaper per token.
Moonshot AI · Mistral AI · Updated for 2026
Which is better?
Kimi K3.1 Pro leads the overall LLM Stats Score 55.5 to 3.7, ranking #5 overall.
In the 1 individual benchmarks reported for both models, Kimi K3.1 Pro wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Mistral Small 3 24B Instruct is roughly 69.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Kimi K3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Kimi K3.1 Pro
- overall performance matters — it scores 55.5 and ranks #5 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Oct 2026
Choose Mistral Small 3 24B Instruct
- cost matters — it's about 69.6x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
30 reported for Kimi K3.1 Pro · 8 for Mistral Small 3 24B Instruct
Kimi K3.1 Pro outperforms in 1 benchmarks (GPQA), while Mistral Small 3 24B Instruct is better at 0 benchmarks.
Kimi K3.1 Pro significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Kimi K3.1 Pro ($2.00/1M tokens) is 40.0x more expensive than Mistral Small 3 24B Instruct ($0.05/1M tokens).
For output processing, Kimi K3.1 Pro ($10.00/1M tokens) is 125.0x more expensive than Mistral Small 3 24B Instruct ($0.08/1M tokens).
In conclusion, Kimi K3.1 Pro is more expensive than Mistral Small 3 24B Instruct.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Kimi K3.1 Pro accepts 1,048,576 input tokens compared to Mistral Small 3 24B Instruct's 32,768 tokens. Kimi K3.1 Pro can generate longer responses up to 1,048,576 tokens, while Mistral Small 3 24B Instruct is limited to 32,768 tokens.
Input capabilities
Documented input modalities across available providers
Kimi K3.1 Pro supports multimodal inputs, whereas Mistral Small 3 24B Instruct does not.
Kimi K3.1 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
Kimi K3.1 Pro
Mistral Small 3 24B Instruct
Release Timeline
When each model was launched
Kimi K3.1 Pro was released on 2026-10-23, while Mistral Small 3 24B Instruct was released on 2025-01-30.
Kimi K3.1 Pro is 21 months newer than Mistral Small 3 24B Instruct.
Oct 23, 2026
1 weeks ago
1.7yr newerJan 30, 2025
1.7 years ago
Knowledge Cutoff
When training data ends
Mistral Small 3 24B Instruct has a documented knowledge cutoff of 2023-10-01, while Kimi K3.1 Pro'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 K3.1 Pro's cutoff date.
—
Oct 2023
Provider Availability
Kimi K3.1 Pro is available from Moonshot AI. Mistral Small 3 24B Instruct is available from DeepInfra, Mistral AI.
Kimi K3.1 Pro
Mistral Small 3 24B Instruct
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi K3.1 Pro and Mistral Small 3 24B Instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K3.1 Pro vs Mistral Small 3 24B Instruct.