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---
language:
- en
library_name: transformers
pipeline_tag: text-generation
license: other
base_model: LiquidAI/LFM2.5-1.2B-Instruct
tags:
- lfm2
- lfm2.5
- transcript-cleanup
- dictation
- text-editing
- unsloth
- gguf
- llama-cpp
---
# Meeko 1 Preview
<p align="center">
<img src="assets/meeko.jpeg" alt="Meeko the cat" width="520">
</p>
**Meeko 1 Preview** is a 1.2B-parameter transcript-cleanup model. It turns raw
speech-to-text output into concise written text with **no system prompt**.
The model is named after Meeko, the cat pictured above.
## What it does
Given a raw transcript as the user message, Meeko returns only the cleaned text.
Its target editing register is medium-touch written English:
- fix punctuation, capitalization, spacing, and grammar;
- remove speech fillers and stutters;
- expand casual forms such as “gonna” to “going to”;
- split run-on sentences when needed;
- format numbers, dates, times, money, percentages, symbols, and lists;
- resolve explicit self-corrections so the final value wins;
- preserve intent, facts, hedges, contrasts, identifiers, and all
non-retracted content.
It is an editor, not a general-purpose chat assistant. Do not add a system
prompt for the intended cleanup task.
## Quick start
```python
import torch
from transformers import AutoModelForCausalLM, AutoTokenizer
model_id = "tigerisaac/meeko-1-preview"
tokenizer = AutoTokenizer.from_pretrained(model_id)
model = AutoModelForCausalLM.from_pretrained(
model_id,
torch_dtype=torch.float16,
device_map="auto",
)
messages = [{
"role": "user",
"content": "um so i was gonna send it friday no wait monday morning",
}]
inputs = tokenizer.apply_chat_template(
messages,
add_generation_prompt=True,
return_tensors="pt",
).to(model.device)
with torch.inference_mode():
generated = model.generate(
inputs,
max_new_tokens=128,
do_sample=False,
)
new_tokens = generated[0, inputs.shape[-1]:]
print(tokenizer.decode(new_tokens, skip_special_tokens=True))
# I was going to send it Monday morning.
```
## GGUF (llama.cpp)
A pre-quantized **Q4_K_M** build is included for local inference:
- File: `meeko-1-preview-Q4_K_M.gguf`
- No system prompt; pass the raw transcript as the user message.
```bash
llama-server -m meeko-1-preview-Q4_K_M.gguf \
--host 127.0.0.1 --port 8080 \
--ctx-size 16384 --parallel 1 --reasoning off
```
## Training
- **Base model:** `LiquidAI/LFM2.5-1.2B-Instruct`
- **Method:** supervised fine-tuning with Unsloth
- **Epochs:** 2
- **Training format:** one raw transcript user message followed by one cleaned
assistant response; no system message
- **Corpus:** 11,438 curated cleanup pairs, assembled into 10,833 training and
570 validation examples after deduplication
- **Label target:** medium-touch written-English cleanup
The corpus includes ordinary dictation, fillers, stutters, number and symbol
formatting, listification, explicit retractions, and matched contrast/hedge
examples that must not be over-edited. Constructed number and retraction rows
use mechanically verified labels.
## License
This fine-tune is derived from `LiquidAI/LFM2.5-1.2B-Instruct` and is released
under the applicable upstream model terms. Review the
[base model repository](https://huggingface.co/LiquidAI/LFM2.5-1.2B-Instruct)
before use or redistribution.
## Acknowledgments
Built with Liquid AI's LFM2.5 base model and Unsloth. Named for Meeko, who
provided supervision of the non-gradient variety.

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{{- bos_token -}}
{%- set keep_past_thinking = keep_past_thinking | default(false) -%}
{%- set ns = namespace(system_prompt="") -%}
{%- if messages[0]["role"] == "system" -%}
{%- set ns.system_prompt = messages[0]["content"] -%}
{%- set messages = messages[1:] -%}
{%- endif -%}
{%- if tools -%}
{%- set ns.system_prompt = ns.system_prompt + ("\n" if ns.system_prompt else "") + "List of tools: [" -%}
{%- for tool in tools -%}
{%- if tool is not string -%}
{%- set tool = tool | tojson -%}
{%- endif -%}
{%- set ns.system_prompt = ns.system_prompt + tool -%}
{%- if not loop.last -%}
{%- set ns.system_prompt = ns.system_prompt + ", " -%}
{%- endif -%}
{%- endfor -%}
{%- set ns.system_prompt = ns.system_prompt + "]" -%}
{%- endif -%}
{%- if ns.system_prompt -%}
{{- "<|im_start|>system\n" + ns.system_prompt + "<|im_end|>\n" -}}
{%- endif -%}
{%- set ns.last_assistant_index = -1 -%}
{%- for message in messages -%}
{%- if message["role"] == "assistant" -%}
{%- set ns.last_assistant_index = loop.index0 -%}
{%- endif -%}
{%- endfor -%}
{%- for message in messages -%}
{{- "<|im_start|>" + message["role"] + "\n" -}}
{%- set content = message["content"] -%}
{%- if content is not string -%}
{%- set content = content | tojson -%}
{%- endif -%}
{%- if message["role"] == "assistant" and not keep_past_thinking and loop.index0 != ns.last_assistant_index -%}
{%- if "</think>" in content -%}
{%- set content = content.split("</think>")[-1] | trim -%}
{%- endif -%}
{%- endif -%}
{{- content + "<|im_end|>\n" -}}
{%- endfor -%}
{%- if add_generation_prompt -%}
{{- "<|im_start|>assistant\n" -}}
{%- endif -%}

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{
"architectures": [
"Lfm2ForCausalLM"
],
"block_auto_adjust_ff_dim": true,
"block_dim": 2048,
"block_ff_dim": 12288,
"block_ffn_dim_multiplier": 1.0,
"block_mlp_init_scale": 1.0,
"block_multiple_of": 256,
"block_norm_eps": 1e-05,
"block_out_init_scale": 1.0,
"block_use_swiglu": true,
"block_use_xavier_init": true,
"bos_token_id": 1,
"conv_L_cache": 3,
"conv_bias": false,
"conv_dim": 2048,
"conv_use_xavier_init": true,
"torch_dtype": "float16",
"eos_token_id": 7,
"hidden_size": 2048,
"initializer_range": 0.02,
"intermediate_size": 12288,
"layer_types": [
"conv",
"conv",
"full_attention",
"conv",
"conv",
"full_attention",
"conv",
"conv",
"full_attention",
"conv",
"full_attention",
"conv",
"full_attention",
"conv",
"full_attention",
"conv"
],
"max_position_embeddings": 128000,
"model_name": "unsloth/LFM2.5-1.2B-Instruct",
"model_type": "lfm2",
"norm_eps": 1e-05,
"num_attention_heads": 32,
"num_heads": 32,
"num_hidden_layers": 16,
"num_key_value_heads": 8,
"pad_token_id": 0,
"rope_theta": 1000000.0,
"tie_embedding": true,
"unsloth_fixed": true,
"unsloth_version": "2026.5.5",
"use_cache": true,
"use_pos_enc": true,
"vocab_size": 65536
}

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{
"base_model": "unsloth/LFM2.5-1.2B-Instruct"
}

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"bos_token_id": 1,
"eos_token_id": 7,
"max_length": 128000,
"pad_token_id": 0,
"transformers_version": "4.57.6"
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{
"bos_token": {
"content": "<|startoftext|>",
"lstrip": false,
"normalized": false,
"rstrip": false,
"single_word": false
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