Overview
Devstral 2 2512 vs GPT-5.1-Codex-Max: side-by-side summary
Devstral 2 2512 and GPT-5.1-Codex-Max are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Devstral 2 2512, from Mistral AI, has a 262,144-token context window and is priced at $0.40/M tokens input, $2/M tokens output on OpenRouter.
GPT-5.1-Codex-Max, from OpenAI, has a 400,000-token context window and is priced at $1.25/M tokens input, $10/M tokens output on OpenRouter.
- Context window
- Devstral 2 2512: 262,144 tokens
- GPT-5.1-Codex-Max: 400,000 tokens
- Price
- Devstral 2 2512: $0.40/M tokens input, $2/M tokens output
- GPT-5.1-Codex-Max: $1.25/M tokens input, $10/M tokens output
- Provided by
- Devstral 2 2512: Mistral AI
- GPT-5.1-Codex-Max: OpenAI