Qwen3 Next 80B A3B Thinking
Qwen3-Next-80B-A3B-Thinking is a reasoning-first chat model in the Qwen3-Next line that outputs structured “thinking” traces by default. It’s designed for hard multi-step problems; math proofs, code synthesis/debugging, logic, and agentic planning, and reports strong results across knowledge, reasoning, coding, alignment, and multilingual evaluations. Compared with prior Qwen3 variants, it emphasizes stability under long chains of thought and efficient scaling during inference, and it is tuned to follow complex instructions while reducing repetitive or off-task behavior. The model is suitable for agent frameworks and tool use (function calling), retrieval-heavy workflows, and standardized benchmarking where step-by-step solutions are required. It supports long, detailed completions and leverages throughput-oriented techniques (e.g., multi-token prediction) for faster generation. Note that it operates in thinking-only mode.
Specifications
Modalities
Supported Parameters
Reasoning Configuration
- Default
- Thinking on
- Turning thinking off
- Not possible (always thinks)
Frequently asked questions
- Is Qwen3 Next 80B A3B Thinking 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 Next 80B A3B Thinking?
- 128,000 tokens, shared between the prompt and the response.
- How does Qwen3 Next 80B A3B Thinking rank?
- #156 on the public arena's Japanese board (ELO 1,295). Ranks move as the leaderboard is updated.