---
license: apache-2.0
language:
  - en
library_name: transformers
pipeline_tag: text-generation
base_model: Qwen/Qwen2.5-1.5B-Instruct
base_model_relation: finetune
tags:
  - coding
  - fableforge
  - generalist
  - gguf
  - imatrix
  - llama.cpp
  - lm-studio
  - nexus
  - ollama
  - reasoning
  - text-generation
  - uncensored
---

# FableForge-1.5B

> **FableForge generalist — all NEXUS domains distilled into one model.**

[![Downloads](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fhuggingface.co%2Fapi%2Fmodels%2Ffableforge-ai%2FFableForge-1.5B&query=downloads&label=downloads&color=blue)](https://huggingface.co/fableforge-ai/FableForge-1.5B) [![Demos](https://img.shields.io/badge/🤗-Live%20Demos-orange)](https://huggingface.co/spaces/fableforge-ai/fableforge-nexus)

Base model: [Qwen/Qwen2.5-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-1.5B-Instruct)  ·  Part of the **FableForge** ecosystem.

---

## ⚡ Quickest start — Ollama (pulls straight from this repo → credits the source)

```bash
ollama run hf.co/fableforge-ai/FableForge-1.5B:Q4_K_M
```

## 🦙 llama.cpp

```bash
llama-cli -hf fableforge-ai/FableForge-1.5B:Q4_K_M -p "Hello!"
```

## 💠 LM Studio
Search **`fableforge-ai/FableForge-1.5B`** and pick a quant below.

---

## 📦 Provided quants (download one file, not the whole repo)

| File | Quant | Size | Notes |
| ---- | ----- | ---- | ----- |
| [fableforge-1.5b-f16.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-f16.gguf) | `F16` | 3.09 GB | Full precision (unquantized). Reference / conversion. |
| [fableforge-1.5b-q8_0.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q8_0.gguf) | `Q8_0` | 1.65 GB | Extremely high quality — usually overkill. |
| [fableforge-1.5b-q6_k.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q6_k.gguf) | `Q6_K` | 1.27 GB | Very high quality, near-perfect. **Recommended** if you have the RAM. |
| [fableforge-1.5b-q5_k_m.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q5_k_m.gguf) | `Q5_K_M` | 1.13 GB | High quality. **Recommended.** |
| [fableforge-1.5b-q4_k_m.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q4_k_m.gguf) | `Q4_K_M` | 0.99 GB | ⭐ **Best size/quality balance — default pick for most users.** |
| [fableforge-1.5b-iq4_xs.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-iq4_xs.gguf) | `IQ4_XS` | 0.90 GB | imatrix — great quality, smaller than Q4_K_S. **Recommended for low RAM.** |
| [fableforge-1.5b-q4_0.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q4_0.gguf) | `Q4_0` | 0.93 GB | Legacy format — prefer Q4_K_M. |
| [fableforge-1.5b-q3_k_m.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q3_k_m.gguf) | `Q3_K_M` | 0.82 GB | Lower quality; usable when RAM is tight. |
| [fableforge-1.5b-iq3_xxs.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-iq3_xxs.gguf) | `IQ3_XXS` | 0.67 GB | imatrix very low quality. |
| [fableforge-1.5b-q2_k.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-q2_k.gguf) | `Q2_K` | 0.68 GB | Very low quality — surprisingly usable. |
| [fableforge-1.5b-iq2_xxs.gguf](https://huggingface.co/fableforge-ai/FableForge-1.5B/blob/main/fableforge-1.5b-iq2_xxs.gguf) | `IQ2_XXS` | 0.51 GB | Tiny imatrix — last resort. |

**Not sure?** Take **`Q4_K_M`**. Low RAM → **`IQ4_XS`**. Max quality → **`Q6_K`**.

## 🧠 Prompt format (ChatML)

```
<|im_start|>system
{system_prompt}<|im_end|>
<|im_start|>user
{prompt}<|im_end|>
<|im_start|>assistant
```

## 🌌 See it live — the FableForge demos

This family powers a galaxy of free, interactive HF Spaces:

- 🧭 [FableForge Nexus](https://huggingface.co/spaces/fableforge-ai/fableforge-nexus)
- 🍺 [Infinite NPC](https://huggingface.co/spaces/fableforge-ai/infinite-npc)
- 🎭 [Dual-GM](https://huggingface.co/spaces/King3Djbl/dual-gm-simulator)
- 💻 [ShellWhisperer](https://huggingface.co/spaces/King3Djbl/shellwhisperer-terminal)
- 👻 [Ghost Writer](https://huggingface.co/spaces/fableforge-ai/ghost-writer)

---

*⭐ Like & share — it helps people find the source instead of a mirror.*