Comprehensive side-by-side LLM comparison
o3-pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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.
Alibaba Cloud / Qwen Team
Qwen 2.5 14B was developed as a mid-sized instruction-tuned model, designed to balance capability and efficiency for diverse language tasks. Built with 14 billion parameters, it provides strong performance for applications requiring reliable instruction-following without the resource demands of larger models.
8 months newer

Qwen2.5 14B Instruct
Alibaba Cloud / Qwen Team
2024-09-19

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

o3-pro
OpenAI

Qwen2.5 14B Instruct

o3-pro

Qwen2.5 14B Instruct

o3-pro

Qwen2.5 14B Instruct