# Granite 4.1 (30B)

> IBM's dense 30B Granite 4.1 model keeps a straightforward long-context GQA transformer stack and improves tool calling, instruction following, and chat behavior through post-training.

| Property | Value |
| --- | --- |
| Lab | IBM (United States) |
| Released | 2026-04-29 |
| Decoder type | Dense |
| Family | Dense |
| Scale | 30B parameters |
| Context window | 131,072 tokens |
| Attention | GQA with RoPE |
| Layer mix | 64 GQA |
| KV cache / token (bf16) | 256 KiB (High) |
| License | Apache License 2.0 |

**Key detail:** Uses a 4096-wide dense stack, 32 query heads, 8 KV heads, SwiGLU MLPs, shared input/output embeddings, and Granite-specific MuP scaling factors.

## Architecture concepts

- [Grouped-Query Attention (GQA)](https://llm-atlas-7or.pages.dev/concepts/gqa.md): Several query heads share one key/value head, shrinking the KV cache with little quality loss.

## Benchmark (Artificial Analysis Intelligence Index)

- AA Intelligence Index v4.3.2: total 7.4 (Scientific 2.1)

## Links

- Architecture diagram: https://sebastianraschka.com/llm-architecture-gallery/images/architectures/granite-4.1.webp
- config.json: https://huggingface.co/ibm-granite/granite-4.1-30b/blob/main/config.json
- Tech report: https://huggingface.co/blog/ibm-granite/granite-4-1
- Source card (source of truth): https://sebastianraschka.com/llm-architecture-gallery/#card-granite-4-1-30b
- Web page: https://llm-atlas-7or.pages.dev/models/granite-4-1-30b/
- JSON: https://llm-atlas-7or.pages.dev/api/models/granite-4-1-30b.json

_Data from Sebastian Raschka's LLM Architecture Gallery (https://sebastianraschka.com/llm-architecture-gallery/). Synced 2026-11-04._