---
language:
- en
license: other
library_name: pytorch
tags:
- causal-lm
- chat
- chatml
- instruction-tuned
- safetensors
- small-language-model
- meet25m
---

# Meet25M ChatML

ChatML fine-tuned version of Meet25M Base.

## Model

- Base: Meet25M Base
- Approx size: ~25M parameters
- Context length: 1024
- Tokenizer: custom byte-level BPE with ChatML tokens
- Chat format: ChatML

## ChatML Format

Use:

```text
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Your message here.<|im_end|>
<|im_start|>assistant
```

The model should generate the assistant response until `<|im_end|>`.

## SFT Dataset

Fine-tuned on:

- `OpenLeecher/lmsys_chat_1m_clean`

## Files

- `model.safetensors` — safetensors checkpoint
- `config.json` — model config
- `tokenizer/` — tokenizer files
- `safetensors_info.json` — checkpoint metadata

## Loading

This is not a standard Transformers `AutoModelForCausalLM` checkpoint.  
Use the custom GPT class from the training/SFT script and load `model.safetensors`.