---

base_model: IFM/K2-Horizon-3.7B

language:

- en

license: apache-2.0

tags:

- gguf

- quantized

- llama.cpp

- k2-horizon

- causal-lm

- text-generation

pipeline_tag: text-generation

---

K2-Horizon-3.7B — GGUF Quantizations

GGUF quantizations of IFM/K2-Horizon-3.7B,

a dense 3.7B-parameter causal decoder (K2HorizonForCausalLM, model_type: k2_horizon).

Quantized by NANI-Nithin using a custom pipeline built on the

MBZUAI-IFM llama.cpp fork (branch model/K2Horizon).

> Note on file naming: IFM's official GGUF repo ships this model as

> K2-Horizon-4B-BF16.gguf (rounded name). Files in this repo are renamed

> to the K2-Horizon-3.7B-* convention for consistency.

---

Model Details

| Property | Value |

|---|---|

| Base model | IFM/K2-Horizon-3.7B |

| Architecture | K2HorizonForCausalLM (k2_horizon) |

| Parameters | ~3.7B (dense decoder, no MoE) |

| Original dtype | BF16 |

| BF16 GGUF size | ~10.13 GB |

| Source GGUF | IFM/K2-Horizon-3.7B-GGUF |

| llama.cpp fork | MBZUAI-IFM/llama.cpp @ model/K2Horizon |

> Note: These GGUFs carry the k2-horizon architecture token and require

> the MBZUAI-IFM fork (or upstream llama.cpp once support is merged) to run.

> Vanilla upstream llama.cpp (as of September 2026) does not support

> K2HorizonForCausalLM.

---

Included Files

Standard Quantizations

| File | Bits/Weight | Notes |

|---|---|---|

| K2-Horizon-3.7B-BF16.gguf | 16 bpw | Source quant, full precision |

| K2-Horizon-3.7B-Q8_0.gguf | 8 bpw | Near-lossless, recommended reference |

| K2-Horizon-3.7B-Q6_K.gguf | 6 bpw | Near-lossless K-quant |

| K2-Horizon-3.7B-Q5_K_M.gguf | 5 bpw | Best quality/size in the 5-bit range |

| K2-Horizon-3.7B-Q5_K_S.gguf | 5 bpw | Smaller 5-bit variant |

| K2-Horizon-3.7B-Q5_1.gguf | 5 bpw | Legacy 5-bit |

| K2-Horizon-3.7B-Q5_0.gguf | 5 bpw | Legacy 5-bit |

| K2-Horizon-3.7B-Q4_K_M.gguf | 4 bpw | Recommended general use |

| K2-Horizon-3.7B-Q4_K_S.gguf | 4 bpw | Smaller 4-bit K-quant |

| K2-Horizon-3.7B-Q4_1.gguf | 4 bpw | Legacy 4-bit |

| K2-Horizon-3.7B-Q4_0.gguf | 4 bpw | Legacy 4-bit |

| K2-Horizon-3.7B-Q3_K_L.gguf | 3 bpw | Large 3-bit K-quant |

| K2-Horizon-3.7B-Q3_K_M.gguf | 3 bpw | Medium 3-bit K-quant |

| K2-Horizon-3.7B-Q3_K_S.gguf | 3 bpw | Small 3-bit K-quant |

| K2-Horizon-3.7B-Q2_K.gguf | 2 bpw | Aggressive compression |

| K2-Horizon-3.7B-Q2_K_S.gguf | 2 bpw | Smaller 2-bit K-quant (imatrix-guided) |

| K2-Horizon-3.7B-Q2_0.gguf | 2.25 bpw | Group-64 2-bit |

| K2-Horizon-3.7B-Q1_0.gguf | 1.125 bpw | Maximum compression |

IQ (Importance-Matrix) Quantizations

| File | Bits/Weight |

|---|---|

| K2-Horizon-3.7B-IQ4_NL.gguf | ~4 bpw |

| K2-Horizon-3.7B-IQ4_XS.gguf | ~4 bpw |

| K2-Horizon-3.7B-IQ3_M.gguf | ~3 bpw |

| K2-Horizon-3.7B-IQ3_S.gguf | ~3 bpw |

| K2-Horizon-3.7B-IQ3_XS.gguf | ~3 bpw |

| K2-Horizon-3.7B-IQ3_XXS.gguf | ~3 bpw |

| K2-Horizon-3.7B-IQ2_M.gguf | ~2 bpw |

| K2-Horizon-3.7B-IQ2_S.gguf | ~2 bpw |

| K2-Horizon-3.7B-IQ2_XS.gguf | ~2 bpw |

| K2-Horizon-3.7B-IQ2_XXS.gguf | ~2 bpw |

| K2-Horizon-3.7B-IQ1_M.gguf | 1.75 bpw |

| K2-Horizon-3.7B-IQ1_S.gguf | 1.56 bpw |

---

Quantization Method

• Source: IFM's official BF16 GGUF (originally named K2-Horizon-4B-BF16.gguf, renamed here).
• imatrix: Computed from Salesforce/wikitext

(wikitext-2-raw-v1, 500 rows) with 24 GPU layers offloaded on an RTX 4060 Laptop (8 GB VRAM).

Applied to all K-quants below Q6 and all IQ quants.

• Fork: MBZUAI-IFM/llama.cpp, branch model/K2Horizon.

---

Usage

> Requires the MBZUAI-IFM llama.cpp fork (model/K2Horizon branch).

git clone -b model/K2Horizon https://github.com/MBZUAI-IFM/llama.cpp
cd llama.cpp && cmake -B build -DGGML_CUDA=ON && cmake --build build --config Release

./build/bin/llama-cli \
  -m K2-Horizon-3.7B-Q4_K_M.gguf \
  -p "Hello, I am" \
  -n 128

---

License

Weights are released under the same license as the original

IFM/K2-Horizon-3.7B model.

Please refer to the original repository for full license terms.

---

Credits

• Original model: MBZUAI IFM
• Quantized by: NANI-Nithin
• Quantization tool: MBZUAI-IFM/llama.cpp