Kimi K3 vs Mistral Medium 3 (Comparative Analysis)
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Comparative Analysis: Kimi K3 vs. Mistral Medium 3
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Overview
Mistral Medium 3 was released 1 year before Kimi K3.
 Kimi K3 |  Mistral Medium 3 | |
|---|---|---|
Model Provider The organization behind this AI's development | MoonshotAI | Mistral |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 131.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens | Not specified tokens |
Release Date When this model first became publicly available | July 16, 2026 11 days ago July 16th, 2026 | May 7, 2025 1 year ago May 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | March 31, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Kimi K3 | Mistral Medium 3 | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Enabled by defaultEffort: Max, High, LowDefault: Max | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Other | Mistral |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation |
Pricing
Kimi K3 is roughly 7.5x more expensive compared to Mistral Medium 3 for input tokens and roughly 7.5x more expensive for output tokens.
| Kimi K3 | Mistral Medium 3 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $3.00 per million tokens | $0.40 per million tokens |
Output Token Cost Cost per million output tokens | $15.00 per million tokens | $2.00 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.30 per million tokens | $0.04 per million tokens |
Benchmarks
Compare relevant benchmarks between Kimi K3 and Mistral Medium 3.
| Kimi K3 | Mistral Medium 3 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 57.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 76.2 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 50.1 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,456 Elo (#1 in 3D (69.2% win rate)) | 1,140 Elo (#65 in 3D (54.6% win rate)) |
At a Glance
Quick overview of what makes Kimi K3 and Mistral Medium 3 unique.
Kimi K3 by MoonshotAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Premium pricing at $3.00/M input and $15.00/M output tokens. Released July 16th, 2026.Mistral Medium 3 by Mistral understands both text and images, can use external tools and APIs, generates structured data. It can handle standard conversations with its 131.1K token context window. Reasonably priced at $0.40/M input and $2.00/M output tokens. Released May 7th, 2025.Explore More Comparisons
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Models optimized for creative writing
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Technical analysis and explanations
🔬Science
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