IBM · granite
Can I run granite4.1?
IBM Granite Models are a family of enterprise-ready, open foundation models that support multilingual capabilities, coding, retrieval-augmented generation (RAG), tool use, and structured JSON output. Released under Apache 2.0 license.
28.9B parameters128K contexttextApache License15 builds
granite4.1 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 |
|---|---|---|---|
| granite4.1:3b-q4_0 | Q4_0 | 1.8 GB | ~3.0 GB(est.) |
| granite4.1:3b | Q4_K_M | 2.0 GB | ~3.2 GB(est.) |
| granite4.1:3b-q5_K_M | Q5_K_M | 2.3 GB | ~3.6 GB(est.) |
| granite4.1:3b-q6_K | Q6_K | 2.6 GB | ~4.1 GB(est.) |
| granite4.1:3b-q8_0 | Q8_0 | 3.4 GB | ~5.2 GB(est.) |
| granite4.1:8b-q4_0 | Q4_0 | 4.7 GB | ~7.1 GB(est.) |
| granite4.1:8b | Q4_K_M | 5.0 GB | ~7.5 GB(est.) |
| granite4.1:8b-q5_K_M | Q5_K_M | 5.8 GB | ~8.7 GB(est.) |
Figures marked (est.) approximate the KV cache because this model's architecture details are not published. They are indicative rather than exact.
How to run granite4.1 locally
- 1.Install Ollama for Windows, macOS or Linux.
- 2.Run this in a terminal:
ollama run granite4.1:3b-q4_0 - 3.The weights download on first run, then an interactive prompt opens.
Frequently asked questions about granite4.1
- How much VRAM do I need to run granite4.1?
- At 4K context, the smallest published build of granite4.1 (Q4_0) needs roughly 3.0 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 granite4.1 without a dedicated GPU?
- Yes, but slowly. Without a GPU the model runs on the CPU using system RAM, which usually means a few tokens per second rather than dozens. You would need at least 3.0 GB of free RAM for the smallest build.
- How big is the granite4.1 download?
- The smallest published build is 1.8 GB. There are 15 builds in total, the largest being 28.6 GB. Leave some extra free disk space beyond the download itself.
- How do I run granite4.1 locally?
- Install Ollama, then run "ollama run granite4.1:3b-q4_0" in a terminal. The weights download on first use and an interactive session opens.
Will granite4.1 run on your PC?
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Model data from the official Ollama registry · verified 13/09/2026