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AlibabaOpen Source

Qwen3-4B-Thinking-2507

Qwen3-4B-Thinking-2507 is a reasoning model developed by Alibaba. It has approximately 40.0B parameters and is a chat-optimized model that supports a 256K long context window.

Parameters

40.0B

Context Window

256K

License

Apache 2.0

Release Date

2025-08-06

API Pricing

API pricing for this model is not yet available

Strengths

  • ・Supports very long context of 256K tokens
  • ・Substantial parameter scale of 40.0B
  • ・Open Apache 2.0 license

Weaknesses

  • ・Large model file size of about 8.05GB
  • ・Lacks optimization details for specific uses
  • ・Reasoning focus may limit general versatility

Use Cases

  • ・Dialogue and analysis of long documents
  • ・Tasks requiring advanced logical reasoning
  • ・Open-source AI development foundations