Key Takeaways
Mistral Large wins:
- Cheaper output tokens
GPT-5 Codex wins:
- Cheaper input tokens
- Larger context window
- Faster response time
- Higher intelligence benchmark
- Better at coding
- Better at math
- Supports vision
Price Advantage
Mistral Large
Benchmark Advantage
GPT-5 Codex
Context Window
GPT-5 Codex
Speed
GPT-5 Codex
Pricing Comparison
Price Comparison
| Metric | Mistral Large | GPT-5 Codex | Winner |
|---|---|---|---|
| Input (per 1M tokens) | $2.00 | $1.25 | GPT-5 Codex |
| Output (per 1M tokens) | $6.00 | $10.00 | Mistral Large |
| Cache Read (per 1M) | N/A | $125000.00 | GPT-5 Codex |
Using a 3:1 input/output ratio, Mistral Large is 13% cheaper overall.
Mistral Large Providers
Vercel $2.00 (Cheapest)
Mistral $2.00 (Cheapest)
GPT-5 Codex Providers
OpenAI $1.25 (Cheapest)
Benchmark Comparison
7
Benchmarks Compared
0
Mistral Large Wins
4
GPT-5 Codex Wins
Benchmark Scores
| Benchmark | Mistral Large | GPT-5 Codex | Winner |
|---|---|---|---|
Intelligence Index Overall intelligence score | 9.9 | 44.5 | |
Coding Index Code generation & understanding | - | 38.9 | - |
Math Index Mathematical reasoning | - | 98.7 | - |
MMLU Pro Academic knowledge | 51.5 | 86.5 | |
GPQA Graduate-level science | 35.1 | 83.7 | |
LiveCodeBench Competitive programming | 17.8 | 84.0 | |
AIME Competition math | 0.0 | - | - |
GPT-5 Codex significantly outperforms in coding benchmarks.
Cost vs Quality
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Mistral Large
Other models
Context & Performance
Context Window
Mistral Large
128,000
tokens
GPT-5 Codex
400,000
tokens
Max output: 128,000 tokens
GPT-5 Codex has a 68% larger context window.
Speed Performance
| Metric | Mistral Large | GPT-5 Codex | Winner |
|---|---|---|---|
| Tokens/second | 0.0 tok/s | 314.7 tok/s | |
| Time to First Token | 0.00s | 10.95s |
GPT-5 Codex responds Infinity% faster on average.
Capabilities
Feature Comparison
| Feature | Mistral Large | GPT-5 Codex |
|---|---|---|
| Vision (Image Input) | ||
| Tool/Function Calls | ||
| Reasoning Mode | ||
| Audio Input | ||
| Audio Output | ||
| PDF Input | ||
| Prompt Caching | ||
| Web Search |
License & Release
| Property | Mistral Large | GPT-5 Codex |
|---|---|---|
| License | Proprietary | Proprietary |
| Author | Mistral AI | OpenAI |
| Released | Feb 2024 | Sep 2025 |
Mistral Large Modalities
Input
text
Output
text
GPT-5 Codex Modalities
Input
textimage
Output
text