Qwen3-4B-2507
Refreshed 4B open-weight model in thinking and non-thinking variants, July-August 2025.
About
Qwen3-4B-2507 is the August 2025 refresh of Alibaba's Qwen3-4B, released as two variants: Qwen3-4B-Instruct-2507 for fast general chat and Qwen3-4B-Thinking-2507 for deliberate reasoning. Both sit under the Qwen3 hybrid design that lets a model toggle thinking mode on or off at inference time, so one checkpoint covers both quick answers and step-by-step problem solving.
The refresh continues the Qwen3 story of small models punching above their weight: the original Qwen3-4B was described by the Qwen team as rivaling Qwen2.5-72B-Instruct. Weights are free for commercial and non-commercial use under Apache 2.0 on Hugging Face and ModelScope, with API access through Alibaba Cloud's Model Studio.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 114; Trending score 82/100 from researcher assessment.
More in the qwen3 family
- Qwen3-Next-80B-A3B
- Qwen3-235B-A22B
- Qwen3-235B-A22B-2507
- Qwen3-4B-Instruct-2507
- Qwen3-8B
- Qwen3.5
- Qwen3-235B-A22B-Instruct-2507
- Qwen3 235B
- Qwen3-235B-A22B-Thinking-2507
- Qwen3-Omni-Flash
- Qwen3.6-27B
- Qwen3-32B
- Qwen3-Max
- Qwen3.8-Flash-Next
- Qwen3-Coder-Plus
- Qwen3
- Qwen3-0.6B
- Qwen3-4B
- Qwen3-Coder-Next
- Qwen3-14B
- Qwen3-VL-30B-A3B
- Qwen3-1.7B
- Qwen3-Omni-30B-A3B