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LFM2.5 1.2B Thinking by LiquidAI

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LFM2.5 1.2B Thinking is an open-source language model by LiquidAI. Features: 1.2b LLM, VRAM: 2.3GB, Context: 125K, License: other.

  Arxiv:2511.23404   Ar Base model:finetune:liquidai/l... Base model:liquidai/lfm2.5-1.2...   Conversational   De   Deploy:azure   Edge   En   Endpoints compatible   Es   Fr   Ja   Ko   Lfm2   Lfm2.5   Liquid   Region:us   Safetensors   Zh
Model Card on HF 🤗: https://huggingface.co/LiquidAI/LFM2.5-1.2B-Thinking 
LFM2.5 1.2B Thinking (LiquidAI/LFM2.5-1.2B-Thinking)
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LFM2.5 1.2B Thinking Parameters and Internals

LLM NameLFM2.5 1.2B Thinking
Repository 🤗https://huggingface.co/LiquidAI/LFM2.5-1.2B-Thinking 
Base Model(s)  LiquidAI/LFM2.5-1.2B-Base   LiquidAI/LFM2.5-1.2B-Base
Model Size1.2b
Required VRAM2.3 GB
Updated2026-03-27
MaintainerLiquidAI
Model Typelfm2
Model Files  2.3 GB
Supported Languagesen ar zh fr de ja ko es
Model ArchitectureLfm2ForCausalLM
Licenseother
Context Length128000
Model Max Length128000
Transformers Version4.57.2
Tokenizer ClassPreTrainedTokenizerFast
Padding Token<|pad|>
Vocabulary Size65536

Quantized Models of the LFM2.5 1.2B Thinking

Model
Likes
Downloads
VRAM
LFM2.5 1.2B Thinking 8bit21581 GB

Best Alternatives to LFM2.5 1.2B Thinking

Best Alternatives
Context / RAM
Downloads
Likes
LFM2 1.2B125K / 2.3 GB311215351
Luth LFM2 1.2B125K / 2.3 GB2022
Liquid Thinking Preview125K / 2.3 GB36
LFM2 1.2B Bf16125K / 2.3 GB302
LFM2 1.2B Pirate125K / 2.3 GB36
...M2.5 1.2B Instruct Abliterated125K / 2.3 GB230
LFM2 1.2B32K / 2.3 GB61412
ConstructionSafetyQA 1.2B V132K / 2.3 GB27
DentaInstruct 1.2B32K / 2.3 GB3022
LFM2.5 1.2B Thinking 8bit125K / 1.2 GB1582
Note: green Score (e.g. "73.2") means that the model is better than LiquidAI/LFM2.5-1.2B-Thinking.

Rank the LFM2.5 1.2B Thinking Capabilities

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Instruction Following and Task Automation  
Factuality and Completeness of Knowledge  
Censorship and Alignment  
Data Analysis and Insight Generation  
Text Generation  
Text Summarization and Feature Extraction  
Code Generation  
Multi-Language Support and Translation  

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