Qwen 3.8 27B
Alibaba's Qwen 3.8 27B is free to download and can read images as well as text, though it needs a strong computer to run.
Key facts
- Released
- Aug 14, 2026
- What it does
- Text and chat: Writes, answers questions and holds a conversation.Thinks first: Can reason step by step before it answers: slower, but better at maths, code and tricky questions.Sees images: Understands pictures, screenshots and charts you share with it.Watches video: Understands video clips you share with it.
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- How
- Free to download
- Size
- Parameters: The numbers a model learns during training: a rough measure of its size. Bigger usually means more capable, but slower and pricier to run. 7B means 7 billion.
- Announced as
- “Qwen X post on 2026/08/14”
From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).
Price and limits
What developers pay to use it through the API: How developers plug a model into their own apps and pay per use. A model that's "in the API" can be used by programmers, even if it isn't in a chat app yet., per million Tokens: The small chunks of text a model reads and writes, about three-quarters of a word each. Prices and limits are counted in tokens. sent (input) or written back (output), and how much it can take in at once.
- Input
- $0.15
- per million tokensCached: $0.038
- Output
- $1.88
- per million tokens
- Context window: How much a model can keep in mind at once: your question, any files you share and its own replies. Measured in tokens; 1,000 tokens is about 750 words.
- 262K tokens
- about 200,000 words
From OpenRouter, checked .
How it scores
From independent testers, never the lab's own claims.
- Building apps, by people's votes#32 of 85
- Claude Opus 5.51,818
- 2Claude Sonnet 5.51,773
- 31Claude Haiku 5.51,595
- 32Qwen 3.8 27B1,591
- 33Gemini 3.7 Flash1,588
Source: LMArena · LMArena WebDev
Compare Qwen 3.8 27B with
It came out 6 days after Qwen3.8-2.4T-A95B, the lab's previous model.
The details
Qwen 3.8 27B is Alibaba's 27 billion parameters: Needs a powerful computer with a large graphics card. Parameters are the numbers a model learns: a rough measure of its size. model for text and image understanding, released as Open weights: The model's files are public, so anyone can download it, run it on their own computer and build on it, usually for free. trckr labels these "Open". with unrestricted use, announced via a Qwen X post.
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