Comprehensive side-by-side LLM comparison
o3 leads with 19.9% higher average benchmark score. o3 supports multimodal inputs. Overall, o3 is the stronger choice for coding tasks.
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 represents the next generation in OpenAI's reasoning model series, developed to advance the capabilities of deliberate, step-by-step problem solving. Built to handle increasingly complex challenges across mathematics, science, and coding, it continues the evolution of reasoning-focused AI with improved analytical depth and accuracy.
1 month newer

o3
OpenAI
2025-04-16

Magistral Small 2506
Mistral AI
2025-06-10
Context window and performance specifications
Average performance across 3 common benchmarks

Magistral Small 2506

o3
o3
2024-05-31
Magistral Small 2506
2025-06-01
Available providers and their performance metrics

Magistral Small 2506

o3
OpenAI

Magistral Small 2506

o3

Magistral Small 2506

o3