Qwen3.8-Max (open weights)
Alibaba · Text generation · MoE 2.4T · 262k context · Released 13 August 2026
Qwen3.8-2.4T-A95B is the open-weight checkpoint of the hosted Qwen3.8-Max. It is a sparse mixture-of-experts with 512 experts, ten routed plus one shared active per token, a 262k native context that extends to around a million tokens, and it requires thinking mode for every interaction. Two things matter for anyone considering it. First, the open checkpoint is text-only: the vision that the hosted Max offers is not part of this release. Second, it was published in BF16 at roughly 4.8TB, which is multi-node cluster territory, not a machine you run at a desk. For nearly everyone, the runnable Qwen3.8-27B is the model to look at instead.
Strengths
- A frontier-scale open-weight model that can be self-hosted with data kept in-house
- Very long context, 262k native and extensible towards a million tokens
- Sparse mixture-of-experts, so only 95B of the 2.4T parameters compute per token
Weaknesses
- Firmly server-class, needing a multi-node cluster rather than a workstation card
- The open checkpoint is text-only, unlike the multimodal hosted Max
- Requires thinking mode for all interactions, adding latency and token use
- A custom licence, a departure from the Apache 2.0 used elsewhere in the Qwen line
Hardware requirements
| Quantisation | Approx. VRAM | Notes |
|---|---|---|
| BF16 (as released) | ~4800GB | The released format, roughly 4.8TB of weights across many files. This is multi-node cluster territory. A 4-bit community quantisation would cut it substantially but was not part of the official release. |
What you'd need to run this
Licence
Qwen3.8-Max License
Qwen3.8-Max (open weights): common questions
- What hardware do I need to run Qwen3.8-Max (open weights)?
- At its most compressed (BF16 (as released)) it needs roughly 4800GB of VRAM. VRAM figures are approximate and depend on context length and settings.
- Is Qwen3.8-Max (open weights) free for commercial use?
- Commercial use is permitted, but with conditions. The weights are published under a custom Qwen3.8-Max licence rather than the Apache 2.0 that covers the rest of the Qwen line, including the Qwen3.8-27B. Read the licence before relying on it at scale.
- Can I run Qwen3.8-Max (open weights) on Apple Silicon?
- It can run on Apple Silicon through general runtimes, but it is not specifically optimised for it.
- What is Qwen3.8-Max (open weights)'s context window?
- Qwen3.8-Max (open weights) has a context window of 262,144 tokens, about 262k.
Availability
Recommended for
- Organisations with cluster-class infrastructure wanting a frontier-scale open model
- Server-class self-hosting where data must stay in-house
Related models
Related guides
Glossary
Catalogue entry last verified 14 August 2026. Specifications change; verify anything you are about to spend money on.