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Light IF 4B by qihoo360

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Light IF 4B is an open-source language model by qihoo360. Features: 4b LLM, VRAM: 8.9GB, Context: 40K, License: apache-2.0, LLM Explorer Score: 0.19.

  Arxiv:2508.03178 Base model:finetune:qwen/qwen3...   Base model:qwen/qwen3-4b   Conversational   Endpoints compatible   Qwen3   Region:us   Safetensors   Sharded   Tensorflow
Model Card on HF 🤗: https://huggingface.co/qihoo360/Light-IF-4B 

Light IF 4B Benchmarks

LLME Score: 0.19476
nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").
Light IF 4B (qihoo360/Light-IF-4B)

Light IF 4B Parameters and Internals

LLM NameLight IF 4B
Repository 🤗https://huggingface.co/qihoo360/Light-IF-4B 
Base Model(s)  Qwen/Qwen3-4B   Qwen/Qwen3-4B
Model Size4b
Required VRAM8.9 GB
Updated2026-08-04
Maintainerqihoo360
Model Typeqwen3
Model Files  5.0 GB: 1-of-2   3.9 GB: 2-of-2
Model ArchitectureQwen3ForCausalLM
Licenseapache-2.0
Context Length40960
Model Max Length40960
Transformers Version4.51.3
Tokenizer ClassQwen2Tokenizer
Padding Token<|endoftext|>
Vocabulary Size151936
Torch Data Typebfloat16
Errorsreplace

Best Alternatives to Light IF 4B

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Context / RAM
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Fable Traces256K / 8.1 GB5530209
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Qwen3 4B Instruct 2507256K / 8.1 GB3551518904
GRPO 4 70256K / 8.1 GB50
FastContext 1.0 4B RL256K / 8.1 GB455961
Lightning 4B256K / 8.1 GB136
Qwen3 4B Thinking 2507256K / 8.1 GB291023606
Qwen3 4B Instruct 2507 FP8256K / 5.2 GB110074478
Typhoon2.5 Qwen3 4B256K / 8 GB4898776
Neuron 4B Instruct256K / 8.1 GB2651
Note: green Score (e.g. "73.2") means that the model is better than qihoo360/Light-IF-4B.

Rank the Light IF 4B Capabilities

🆘 Have you tried this model? Rate its performance. This feedback would greatly assist ML community in identifying the most suitable model for their needs. Your contribution really does make a difference! 🌟

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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