Mistral Medium 3.5 vs GPT-5.3 Codex
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Mistral Medium 3.5
B
GPT-5.3 Codex
- ProviderMistral AIOpenAI
- Rank#27Higher rank#31
- TierAA
- Score83.6Higher score82.9
- PriceOpen weights (Modified MIT); API $1.50 input / $7.50 output per 1M tokens via MistralAPI $1.75 input / $14 output per 1M tokens
- TaglineFrontier-class multimodal model from Mistral optimized for agentic and coding use cases.OpenAI's February 2026 agentic coding model combining code generation with general-purpose intelligence, since folded into GPT-5.4 and followed by the GPT-5.5 and GPT-5.6 families.
| Attribute | Mistral Medium 3.5 | GPT-5.3 Codex |
|---|---|---|
| Provider | Mistral AI | OpenAI |
| Rank | #27Higher rank | #31 |
| Tier | A | A |
| Score | 83.6Higher score | 82.9 |
| Price | Open weights (Modified MIT); API $1.50 input / $7.50 output per 1M tokens via Mistral | API $1.75 input / $14 output per 1M tokens |
| Tagline | Frontier-class multimodal model from Mistral optimized for agentic and coding use cases. | OpenAI's February 2026 agentic coding model combining code generation with general-purpose intelligence, since folded into GPT-5.4 and followed by the GPT-5.5 and GPT-5.6 families. |