Side-by-side pricing, context window, and capabilities — try both on ChatLima.
Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring...
General conversations and content creation
GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...
Software development and debugging
| Feature | Mistral: Devstral 2 2512 | OpenAI: GPT-5.3-Codex |
|---|---|---|
| Provider | OpenRouter | OpenRouter |
| Context Length | 262,144 tokens | 400,000 tokens |
| Input Price | $0.440/M | $1.75/M |
| Output Price | $2.20/M | $14.00/M |
| Vision Support | No | Yes |
| Higher cost | No | Yes |
| Capabilities | Text | TextVisionCoding |