Key Takeaways
Claude Opus 4.5 wins:
- Larger context window
- Higher intelligence benchmark
- Better at coding
- Better at math
- Has reasoning mode
Mistral Medium 3.1 wins:
- Cheaper input tokens
- Cheaper output tokens
- Faster response time
Price Advantage
Mistral Medium 3.1
Benchmark Advantage
Claude Opus 4.5
Context Window
Claude Opus 4.5
Speed
Mistral Medium 3.1
Pricing Comparison
Price Comparison
| Metric | Claude Opus 4.5 | Mistral Medium 3.1 | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $5.00 | $0.40 | Mistral Medium 3.1 |
| Output (per 1M tokens) | $25.00 | $2.00 | Mistral Medium 3.1 |
| Cache Read (per 1M) | $0.50 | N/A | Claude Opus 4.5 |
| Cache Write (per 1M) | $6.25 | N/A | Claude Opus 4.5 |
Using a 3:1 input/output ratio, Mistral Medium 3.1 is 92% cheaper overall.
Claude Opus 4.5 Providers
No provider data available
Mistral Medium 3.1 Providers
No provider data available
Benchmark Comparison
6
Benchmarks Compared
6
Claude Opus 4.5 Wins
0
Mistral Medium 3.1 Wins
Benchmark Scores
| Benchmark | Claude Opus 4.5 | Mistral Medium 3.1 | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 43.1 | 21.3 | |
Coding Index Code generation & understanding | 42.9 | 18.3 | |
Math Index Mathematical reasoning | 62.7 | 38.3 | |
MMLU Pro Academic knowledge | 88.9 | 68.3 | |
GPQA Graduate-level science | 81.0 | 58.8 | |
LiveCodeBench Competitive programming | 73.8 | 40.6 |
Claude Opus 4.5 significantly outperforms in coding benchmarks.
Cost vs Quality
X-axis:
Y-axis:
Loading chart...
Claude Opus 4.5
Other models
Context & Performance
Context Window
Claude Opus 4.5
200,000
tokens
Mistral Medium 3.1
131,072
tokens
Claude Opus 4.5 has a 34% larger context window.
Speed Performance
| Metric | Claude Opus 4.5 | Mistral Medium 3.1 | Winner |
|---|---|---|---|
| Tokens/second | 63.2 tok/s | 78.1 tok/s | |
| Time to First Token | 1.33s | 0.42s |
Mistral Medium 3.1 responds 24% faster on average.
Capabilities
Feature Comparison
| Feature | Claude Opus 4.5 | Mistral Medium 3.1 |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Claude Opus 4.5 | Mistral Medium 3.1 |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Anthropic | Mistral AI |
| Released | Nov 2025 | Aug 2025 |
Claude Opus 4.5 Modalities
Input
fileimagetext
Output
text
Mistral Medium 3.1 Modalities
Input
textimage
Output
text