GPT-5.3 Codex vs Mistral Medium 3.5
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
GPT-5.3 Codex
B
Mistral Medium 3.5
- ProviderOpenAIMistral AI
- Rank#31#27Higher rank
- TierAA
- Score82.983.6Higher score
- PriceAPI $1.75 input / $14 output per 1M tokensOpen weights (Modified MIT); API $1.50 input / $7.50 output per 1M tokens via Mistral
- TaglineOpenAI'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.Frontier-class multimodal model from Mistral optimized for agentic and coding use cases.
| Attribute | GPT-5.3 Codex | Mistral Medium 3.5 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Rank | #31 | #27Higher rank |
| Tier | A | A |
| Score | 82.9 | 83.6Higher score |
| Price | API $1.75 input / $14 output per 1M tokens | Open weights (Modified MIT); API $1.50 input / $7.50 output per 1M tokens via Mistral |
| Tagline | 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. | Frontier-class multimodal model from Mistral optimized for agentic and coding use cases. |