Qwen3 235B A22B Thinking 2507
Qwen3-235B-A22B-Thinking-2507 is a high-performance, open-weight Mixture-of-Experts (MoE) language model optimized for complex reasoning tasks. It activates 22B of its 235B parameters per forward pass and natively supports up to 262,144 tokens of context. This "thinking-only" variant enhances structured logical reasoning, mathematics, science, and long-form generation, showing strong benchmark performance across AIME, SuperGPQA, LiveCodeBench, and MMLU-Redux. It enforces a special reasoning mode (</think>) and is designed for high-token outputs (up to 81,920 tokens) in challenging domains. The model is instruction-tuned and excels at step-by-step reasoning, tool use, agentic workflows, and multilingual tasks. This release represents the most capable open-source variant in the Qwen3-235B series, surpassing many closed models in structured reasoning use cases.
Specifications
Modalities
Supported Parameters
Reasoning Configuration
- Default
- Thinking on
- Turning thinking off
- Not possible (always thinks)
Frequently asked questions
- Is Qwen3 235B A22B Thinking 2507 available on FastMetal?
- Not at the moment. Qwen3.8 Max (0902), from the same lab, is available on the FastMetal API today.
- What is the context window of Qwen3 235B A22B Thinking 2507?
- 131,072 tokens, shared between the prompt and the response.
- How does Qwen3 235B A22B Thinking 2507 rank?
- #91 on the public arena's Japanese board (ELO 1,378). Ranks move as the leaderboard is updated.