Mistral Small 3.1 vs GPT-5.3-Codex-Spark
Mistral Mistral Small 3.1 | OpenAI GPT-5.3-Codex-Spark | |
|---|---|---|
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Mar 17 2025 | Feb 12 2026 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Context window | — | 128k |
| Timeline | ||
| Release gap | Mistral Small 3.1 shipped 332 days before GPT-5.3-Codex-Spark | |
Which is better: Mistral Small 3.1 or GPT-5.3-Codex-Spark?
Mistral Small 3.1 and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Small 3.1 shipped 332 days before GPT-5.3-Codex-Spark, so benchmark comparisons should account for the intervening progress.
Mistral Small 3.1 is open weight, while GPT-5.3-Codex-Spark is proprietary.
Direct benchmark comparisons are unavailable — Mistral Small 3.1 and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks.
Frequently asked questions
Mistral Small 3.1 was released by Mistral on Mar 17 2025.
GPT-5.3-Codex-Spark was released by OpenAI on Feb 12 2026.
Mistral Small 3.1 is an open weight model released by Mistral. GPT-5.3-Codex-Spark is a proprietary model released by OpenAI.
Other comparisons
Mistral Small 3.1 vs Claude Sonnet 5GPT-5.3-Codex-Spark vs Claude Sonnet 5Mistral Small 3.1 vs Gemini OmniGPT-5.3-Codex-Spark vs Gemini OmniMistral Small 3.1 vs Muse Spark 1.1GPT-5.3-Codex-Spark vs Muse Spark 1.1Mistral Small 3.1 vs Grok 4.5GPT-5.3-Codex-Spark vs Grok 4.5Mistral Small 3.1 vs DeepSeek-V4-ProGPT-5.3-Codex-Spark vs DeepSeek-V4-ProMistral Small 3.1 vs Kimi K2.7 CodeGPT-5.3-Codex-Spark vs Kimi K2.7 Code