Ollama Library · qwen35
Can I run clef?
Clef is a 27B multimodal model created by Cloudflare that turns a state and a schema of typed questions into decisions.
Parameter counts and memory belong to each build below. A family can contain several sizes and tasks; fitting in memory is not a quality ranking.
Calculate memory for a build and contextclef system requirements
Memory needed at 4K context, counting model weights, KV cache, compute buffers and runtime overhead. Download sizes come from the official Ollama registry.
| Build | Quantization | Download | Memory needed |
|---|---|---|---|
| clef:27b27B parameters (tag)256K documented maximum contextBuild sourceCatalog checked 2026-10-02 | Q4_K_M | 16.8 GB | ~23.1 GB(est.) |
| clef:27b-q8_027B parameters (tag)256K documented maximum contextBuild sourceCatalog checked 2026-10-02 | Q8_0 | 28.0 GB | ~39.2 GB(est.) |
Figures marked (est.) use the fallback KV estimate because this build's architecture is missing from our catalog. All totals are estimates, including runtime buffers.
Showing the 2 smallest non-alias builds. Choose any build and change the context. A context above the build's documented maximum is a hypothetical calculation, not a supported setting.
How to run clef locally
- 1.Install Ollama for Windows, macOS or Linux.
- 2.Download this exact build in a terminal:
ollama pull clef:27b - 3.Check the source for the build's task. For text generation, run
ollama run clef:27b. Base/text builds may need a prompt template; an instruct build is usually the appropriate starting point for a conversation.
Frequently asked questions about clef
- How much VRAM do I need to run clef?
- At 4K context, the smallest published build of clef (Q4_K_M) needs roughly 23.1 GB of GPU memory once weights, KV cache, compute buffers and runtime overhead are counted. Bigger quantizations and longer context windows need more. It can also run partly or entirely on the CPU using system RAM, more slowly.
- Can I run clef without a dedicated GPU?
- A supported CPU runtime can use system RAM. The smallest listed build needs an estimated 23.1 GB at 4K context, plus headroom for your operating system. Check the build's runtime requirements. We have not measured its speed on your CPU.
- How big is the clef download?
- The smallest published build is 16.8 GB. There are 2 builds in total, the largest being 28.0 GB. Leave some extra free disk space beyond the download itself.
- How do I run clef locally?
- Install Ollama, then download a specific build with "ollama pull clef:27b". For a build that supports text generation, use ollama run with the same tag. Check the model source for its task and prompt format.
Will clef run on your PC?
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Model data from the official Ollama registry · verified 02/10/2026