---
license: apache-2.0
language:
- en
library_name: transformers
pipeline_tag: text-generation
tags:
- mathematical-reasoning
- qwen3
- lora
- grpo
- math
- reasoning
- fine-tuned
- llama-cpp
- gguf-my-repo
base_model: PinkPixel/Crystal-Think-V2
datasets:
- nvidia/OpenMathReasoning
---

# Triangle104/Crystal-Think-V2-Q4_K_M-GGUF
This model was converted to GGUF format from [`PinkPixel/Crystal-Think-V2`](https://huggingface.co/PinkPixel/Crystal-Think-V2) using llama.cpp via the ggml.ai's [GGUF-my-repo](https://huggingface.co/spaces/ggml-org/gguf-my-repo) space.
Refer to the [original model card](https://huggingface.co/PinkPixel/Crystal-Think-V2) for more details on the model.

---
Advanced Mathematical Reasoning Model with Enhanced Chain-of-Thought

Crystal-Think is a specialized mathematical reasoning model based on Qwen3-4B, fine-tuned using Group Relative Policy Optimization (GRPO) on NVIDIA's OpenMathReasoning dataset. Version 2 introduces the new <think></think> reasoning format for enhanced step-by-step mathematical problem solving, algebraic reasoning, and mathematical code generation.

---
## Use with llama.cpp
Install llama.cpp through brew (works on Mac and Linux)

```bash
brew install llama.cpp

```
Invoke the llama.cpp server or the CLI.

### CLI:
```bash
llama-cli --hf-repo Triangle104/Crystal-Think-V2-Q4_K_M-GGUF --hf-file crystal-think-v2-q4_k_m.gguf -p "The meaning to life and the universe is"
```

### Server:
```bash
llama-server --hf-repo Triangle104/Crystal-Think-V2-Q4_K_M-GGUF --hf-file crystal-think-v2-q4_k_m.gguf -c 2048
```

Note: You can also use this checkpoint directly through the [usage steps](https://github.com/ggerganov/llama.cpp?tab=readme-ov-file#usage) listed in the Llama.cpp repo as well.

Step 1: Clone llama.cpp from GitHub.
```
git clone https://github.com/ggerganov/llama.cpp
```

Step 2: Move into the llama.cpp folder and build it with `LLAMA_CURL=1` flag along with other hardware-specific flags (for ex: LLAMA_CUDA=1 for Nvidia GPUs on Linux).
```
cd llama.cpp && LLAMA_CURL=1 make
```

Step 3: Run inference through the main binary.
```
./llama-cli --hf-repo Triangle104/Crystal-Think-V2-Q4_K_M-GGUF --hf-file crystal-think-v2-q4_k_m.gguf -p "The meaning to life and the universe is"
```
or 
```
./llama-server --hf-repo Triangle104/Crystal-Think-V2-Q4_K_M-GGUF --hf-file crystal-think-v2-q4_k_m.gguf -c 2048
```