---
license: other
license_name: modified-mit
library_name: transformers
base_model:
- moonshotai/Kimi-K2-Thinking
---

# Model Overview

- **Model Architecture:** Kimi-K2-Thinking
  - **Input:** Text
  - **Output:** Text
- **Supported Hardware Microarchitecture:** AMD MI300/MI355
- **ROCm**: 7.0
- **PyTorch**: 2.8.0
- **Transformers**: 4.53.0
- **Operating System(s):** Linux
- **Inference Engine:** [vLLM](https://docs.vllm.ai/en/latest/)
- **Model Optimizer:** [AMD-Quark](https://quark.docs.amd.com/latest/index.html) (V0.10)
  - **Weight quantization:** INT4 Per-Channel & FP8E4M3, Static
  - **Activation quantization:** FP8E4M3, Dynamic

This model was built with moonshotai Kimi-K2-Thinking model by applying [AMD-Quark](https://quark.docs.amd.com/latest/index.html) for INT4-FP8 quantization.

# Model Quantization

The model was quantized from [moonshotai/Kimi-K2-Thinking](https://huggingface.co/moonshotai/Kimi-K2-Thinking) using [AMD-Quark](https://quark.docs.amd.com/latest/index.html).

# Deployment

This model can be deployed efficiently using the [vLLM](https://docs.vllm.ai/en/latest/) backends.

## Evaluation

The model was evaluated on GSM8K benchmarks using the [lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness) framework.

### Accuracy

<table>
  <tr>
   <td><strong>Benchmark</strong>
   </td>
   <td><strong>Kimi-K2-Thinking </strong>
   </td>
   <td><strong>Kimi-K2-Thinking-W4A8(this model)</strong>
   </td>
   <td><strong>Recovery</strong>
   </td>
  </tr>
  <tr>
   <td>GSM8K 
   </td>
   <td>93.93
   </td>
   <td>93.4
   </td>
   <td>99.4%
   </td>
  </tr>
</table>


### Reproduction

The results of GSM8K were obtained using [lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness) and latest vLLM. 

Launch vLLM
```
MODEL_DIR=/data/amd/Kimi-K2-Thinking-W4A8
VLLM_ATTENTION_BACKEND="TRITON_MLA" VLLM_ROCM_USE_AITER=1 VLLM_ROCM_USE_AITER_FUSION_SHARED_EXPERTS=0 VLLM_ROCM_USE_AITER_FP4BMM=0 vllm serve $MODEL_DIR \
    --port 8001 \
    --trust-remote-code \
    --gpu-memory-utilization 0.9 \
    --tensor-parallel-size 8 \
    --load-format "fastsafetensors"
```

GSM8K evaluation
```
MODEL_ARGS="model=/data/amd/Kimi-K2-Thinking-W4A8,base_url=http://localhost:8001/v1/completions,num_concurrent=999999,timeout=999999,tokenized_requests=False,max_length=38768,temperature=0.6,top_p=0.95,add_bos_token=True,seed=$SEED,trust_remote_code=True"
lm_eval \
    --model local-completions \
    --model_args $MODEL_ARGS \
    --tasks gsm8k \
    --num_fewshot 8 \
    --batch_size auto
```

# License
Modifications Copyright(c) 2025 Advanced Micro Devices, Inc. All rights reserved.