Comprehensive side-by-side LLM comparison
o3 Pro offers 29.7K more tokens in context window than Qwen3-Max. Qwen3-Max is $98.00 cheaper per million tokens. o3 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
OpenAI o3-pro, released by OpenAI in June 2025, is an extended reasoning model from the o3 family that applies more compute per response to deliver deeper, more thorough answers on complex problems. It features a 200K token context window, 100K maximum output tokens, and vision capabilities. o3-pro targets research-grade reasoning tasks, extended coding sessions, and applications where accuracy on difficult problems justifies higher inference cost and latency.
Alibaba / Qwen
Qwen3-Max, released by Alibaba in September 2025 as an API preview, is a large language model exceeding one trillion parameters built for complex reasoning and long-context tasks. It features a 262K token context window, hybrid thinking modes that allow switching between direct generation and extended chain-of-thought, and is available as a proprietary cloud API via Alibaba Cloud and Qwen Chat. Qwen3-Max targets demanding reasoning, multilingual analysis, and applications requiring frontier-level performance from the Qwen3 generation.
2 months newer

o3 Pro
OpenAI
2025-06-10
Qwen3-Max
Alibaba / Qwen
2025-09-05
Cost per million tokens (USD)
o3 Pro
Qwen3-Max
Context window and performance specifications
Available providers and their performance metrics
o3 Pro
OpenAI
Qwen3-Max
o3 Pro
Qwen3-Max
o3 Pro
Qwen3-Max
OpenRouter