Comprehensive side-by-side LLM comparison
. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-5.1 Codex Max, released by OpenAI in November 2025, is an enhanced coding variant from the GPT-5.1 Codex line, designed for more complex software engineering tasks requiring additional reasoning depth. It targets large-scale code generation, automated refactoring, and sophisticated agentic development workflows.
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.
1 month newer
Qwen3-Max
Alibaba / Qwen
2025-09-05

GPT-5.1 Codex Max
OpenAI
2025-11
Context window and performance specifications
Available providers and their performance metrics
GPT-5.1 Codex Max
Qwen3-Max
OpenRouter
GPT-5.1 Codex Max
Qwen3-Max
GPT-5.1 Codex Max
Qwen3-Max