Devstral Small vs. Codex
A side-by-side comparison based on G2 review data.
| Metric | Devstral Small | Codex |
|---|---|---|
| Overall rating | 4.3 | 4.7 |
| Review count | 12 | 19 |
| Ease of use | 8.8 | 9.2 |
| Ease of setup | 9.2 | 9.4 |
| Quality of support | 8.3 | 9.2 |
| Meets requirements | 8.8 | 9.5 |
| NPS | 50 | 83.333333 |
| Small Business | 33.3% | 47.4% |
| Mid-Market | 33.3% | 31.6% |
| Enterprise | 33.3% | 21.1% |
| Total page views | 89 | 437 |
| Total LLM citations | 2 | 7,269 |
Devstral Small
Codestral is an open-weight generative AI model developed by Mistral AI, specifically designed for code generation tasks. It assists developers in writing and interacting with code through a unified instruction and completion API endpoint. Proficient in over 80 programming languages—including Python, Java, C, C++, JavaScript, and Bash—Codestral also supports less common languages like Swift and Fortran, making it versatile across various coding environments.
Codex
Codex is OpenAI’s agentic coding partner built to accelerate real engineering work end-to-end, helping you plan, implement features, refactor, review, and ship releases while fitting into the tools and workflows developers already use. Rather than acting like a chat-only assistant, it’s positioned as a “build with agents” experience that can take on substantive tasks (and context) across a codebase so you spend less time on repetitive execution and more time on decisions, design, and quality.