Qwen3 VL 4B Thinking (Reasoning)

by Alibaba Cloud / Qwen Team

Qwen3 VL 4B Thinking (Reasoning) is a reasoning model from Alibaba Cloud / Qwen Team, released on September 22, 2025. It has a 262K-token context window and can generate up to 262K output tokens. API pricing is $0.1 per 1M input tokens and $1 per 1M output tokens.

Qwen3-VL is a large multimodal model that unifies vision, language, and reasoning to achieve human-level perception and cognition across text, images, and video. Built on a 235B-parameter architecture, it integrates early joint training of visual and textual modalities for strong language grounding. The model supports up to a 1 million-token context window and excels at visual understanding, spatial reasoning, long video comprehension, and tool-based interaction. It can generate code from images, perform precise 2D/3D object grounding, and operate digital interfaces like a visual agent. The “Instruct” version rivals Gemini 2.5 Pro in perception benchmarks, while the “Thinking” version leads in multimodal reasoning and STEM tasks. With multilingual OCR, creative writing, and fine-grained scene interpretation, Qwen3-VL establishes a new open-source frontier for integrated vision-language intelligence.

Key specs

ProviderAlibaba Cloud / Qwen Team
Release date2025-09-22
Licenseopen source
Context window262K tokens
Max output262K tokens
Input price$0.1 / 1M tokens
Output price$1 / 1M tokens
Intelligence Score12.9

Quick answers

What is the context window of Qwen3 VL 4B Thinking (Reasoning)?

Qwen3 VL 4B Thinking (Reasoning) has a context window of 262K tokens, with a maximum output of 262K tokens per response.

How much does Qwen3 VL 4B Thinking (Reasoning) cost?

Qwen3 VL 4B Thinking (Reasoning) costs $0.1 per 1M input tokens and $1 per 1M output tokens through the API.

Is Qwen3 VL 4B Thinking (Reasoning) open source?

Yes. Qwen3 VL 4B Thinking (Reasoning) is an open model released under the open source license.

When was Qwen3 VL 4B Thinking (Reasoning) released?

Alibaba Cloud / Qwen Team released Qwen3 VL 4B Thinking (Reasoning) on September 22, 2025.

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