head-to-head
Mistral: Mistral Medium 3.5 vs OpenAI: GPT-5.4 Nano
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| Mistral: Mistral Medium 3.5 | OpenAI: GPT-5.4 Nano | |
|---|---|---|
| Vendor | mistralai | openai |
| Quality Score | 100 | 100 |
| Benchmark Score | 19.3 | 31.5 |
| Input Price | $1.50/M | $0.20/M |
| Output Price | $7.50/M | $1.25/M |
| Context Window | 262,144 | 400,000 |
| Max Output | 209,715 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 23.4 | 34.2 |
Who wins by task?
| Task | Mistral: Mistral Medium 3.5 | OpenAI: GPT-5.4 Nano |
|---|---|---|
| SQL Generation | 133 | 138 |
| Code Review | 130 | 138 |
| Code Completion | 115 | 132 |
| Code Refactoring | 131 | 141 |
| Bug Fixing | 134 | 142 |
| Unit Test Generation | 124 | 128 |
| Code Documentation | 126 | 134 |
| Regex Writing | 120 | 123 |
| CI/CD Pipelines | 120 | 124 |
| Frontend Component Design | 124 | 126 |
| Data Analysis | 127 | 129 |
| CSV / Spreadsheet Cleanup | 128 | 135 |
| ETL Scripting | 125 | 132 |
| JSON Extraction | 122 | 131 |
| Bulk Data Labeling | 119 | 129 |
| OCR / Document Parsing | 129 | 132 |
| Table Extraction from PDFs | 129 | 132 |
| Long-Document Summarization | 132 | 143 |
| Short-Form Summarization | 115 | 125 |
| Blog Post Writing | 121 | 126 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
Related comparisons
Anthropic: Claude Haiku Latest vs OpenAI: GPT-5.4 Nano
Anthropic: Claude Sonnet 5 vs Mistral: Mistral Medium 3.5
Anthropic: Claude Sonnet 5 vs OpenAI: GPT-5.4 Nano
Anthropic: Claude Sonnet Latest vs OpenAI: GPT-5.4 Nano
Google: Gemini 3.1 Flash Lite vs Mistral: Mistral Medium 3.5
Google: Gemini 3.1 Flash Lite vs OpenAI: GPT-5.4 Nano
Google: Gemini 3.5 Flash Lite vs Mistral: Mistral Medium 3.5
Google: Gemini 3.5 Flash vs Mistral: Mistral Medium 3.5