Comprehensive side-by-side LLM comparison
o3-pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
Mistral AI
Magistral Small was created as an efficient reasoning-focused variant, designed to bring analytical capabilities to applications with tighter resource constraints. Built to balance problem-solving depth with practical deployment needs, it extends reasoning-enhanced AI to broader use cases.
OpenAI
o3-pro was developed as the flagship reasoning model in the o3 family, designed to deliver maximum reasoning depth and reliability for the most challenging analytical tasks. Built for professionals requiring the highest level of thoughtful problem-solving, it extends reasoning capabilities to handle complex multi-step challenges across diverse domains.
Launched on the same date

Magistral Small 2506
Mistral AI
2025-06-10

o3-pro
OpenAI
2025-06-10
Context window and performance specifications
o3-pro
2024-05-31
Magistral Small 2506
2025-06-01
Available providers and their performance metrics

Magistral Small 2506

o3-pro
OpenAI

Magistral Small 2506

o3-pro

Magistral Small 2506

o3-pro