Claude Opus 4.5 vs Mistral Medium 3.1 (Comparative Analysis)
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Comparative Analysis: Claude Opus 4.5 vs. Mistral Medium 3.1
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Overview
Mistral Medium 3.1 was released 3 months before Claude Opus 4.5.
 Claude Opus 4.5 |  Mistral Medium 3.1 | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | Mistral |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 131.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 64K tokens | Not specified tokens |
Release Date When this model first became publicly available | November 24, 2025 8 months ago November 24th, 2025 | August 13, 2025 11 months ago August 13th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | June 30, 2025 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Opus 4.5 | Mistral Medium 3.1 | |
|---|---|---|
Input Types Supported input formats | 📁File🖼️Image📝Text | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | Mistral |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation |
Pricing
Claude Opus 4.5 is roughly 12.5x more expensive compared to Mistral Medium 3.1 for input tokens and roughly 12.5x more expensive for output tokens.
| Claude Opus 4.5 | Mistral Medium 3.1 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $5.00 per million tokens | $0.40 per million tokens |
Output Token Cost Cost per million output tokens | $25.00 per million tokens | $2.00 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | Not specified |
Cache Read Cost Cost to reuse cached input tokens | $0.50 per million tokens | $0.04 per million tokens |
Cache Write Cost Cost to write input tokens to the cache | $6.25 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $10.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Opus 4.5 and Mistral Medium 3.1.
| Claude Opus 4.5 | Mistral Medium 3.1 | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | Benchmark not available. | 14.7 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | Benchmark not available. | 20.5 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | Benchmark not available. | 6.2 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,287 Elo (#22 in Game Dev (59.4% win rate)) | 1,180 Elo (#60 in Data Viz (47.6% win rate)) |
At a Glance
Quick overview of what makes Claude Opus 4.5 and Mistral Medium 3.1 unique.
Claude Opus 4.5 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $5.00/M input and $25.00/M output tokens. Includes built-in content moderation for safer outputs. Released November 24th, 2025.Mistral Medium 3.1 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 August 13th, 2025.Explore More Comparisons
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Compare Mistral Medium 3.1 with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
🌐Translation
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