Alibaba: qwen-plus-2025-09-11 API
An advanced Qwen3 series snapshot released by Alibaba Cloud in September 2025. This version marks the Plus series' official entry into the "Million-Token Context" era, expanding the window from 128k to 1 million (1M) tokens. The 0911 snapshot also features a deep overhaul of the "Thinking (Chain-of-Thought)" mode, delivering superior logical consistency and information retrieval (Needle In A Haystack) for complex legal contracts, research papers, and cross-file code refactoring tasks exceeding 100,000 words.
- Context window: 1,000,000 tokens
- Max output: 32,768 tokens
- Input: text
- Output: text
- Reasoning: Supported
- Tool calling: Supported
- File input: Supported
- Released: 2025-09-10
- Knowledge cutoff: 2025-07-31
Frequently Asked Questions
What is the context window of qwen-plus-2025-09-11?
qwen-plus-2025-09-11 supports a context window of up to 1,000,000 tokens.
Does qwen-plus-2025-09-11 support function calling?
Yes. qwen-plus-2025-09-11 supports tool / function calling.
Does qwen-plus-2025-09-11 support reasoning?
Yes. qwen-plus-2025-09-11 is a reasoning-capable model.
What is the knowledge cutoff of qwen-plus-2025-09-11?
The knowledge cutoff of qwen-plus-2025-09-11 is 2025-07-31.