What are the hardware requirements for C4?

C4 requires approximately 16.1 GB of VRAM and supports a context window of 1024K tokens. Quantized variants may run on less VRAM; see the Quantized Models section on this page.

Who developed C4 and how large is it?

C4 is developed by MrRobotoAI, a model with 8b parameters. The model is published as open weights on Hugging Face and indexed on LLM Explorer with full benchmark history.

Where can I download or evaluate C4?

C4 is hosted on Hugging Face and linked from this page. LLM Explorer also lists quantized variants and similar alternatives if available.

C4 by MrRobotoAI — VRAM 16.1GB, 1024K context

Name: C4
Author: MrRobotoAI

C4 is an open-source language model by MrRobotoAI. Features: 8b LLM, VRAM: 16.1GB, Context: 1024K, Merged, LLM Explorer Score: 0.19.

Merged Model Arxiv:2212.04089 Autotrain compatible Base model:mrrobotoai/c2 Base model:mrrobotoai/c3 Conversational Endpoints compatible Llama Region:us Safetensors Sharded Tensorflow

Model Card on HF 🤗: https://huggingface.co/MrRobotoAI/C4

C4 Benchmarks

LLME Score: 0.18788

^nn.n% — How the model compares to the reference models: Anthropic Sonnet 3.5 ("so35"), GPT-4o ("gpt4o") or GPT-4 ("gpt4").

What is the LLM Explorer Rank (Score)

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C4 Parameters and Internals

LLM Name	C4
Repository 🤗	https://huggingface.co/MrRobotoAI/C4
Base Model(s)	C2 C3 MrRobotoAI/C2 MrRobotoAI/C3
Merged Model	Yes
Model Size	8b
Required VRAM	16.1 GB
Updated	2025-04-29
Maintainer	MrRobotoAI
Model Type	llama
Model Files	5.0 GB: 1-of-4 5.0 GB: 2-of-4 4.9 GB: 3-of-4 1.2 GB: 4-of-4
Model Architecture	LlamaForCausalLM
Context Length	1048576
Model Max Length	1048576
Transformers Version	4.51.3
Tokenizer Class	PreTrainedTokenizer
Vocabulary Size	128256
Torch Data Type	bfloat16

Best Alternatives to C4

Best Alternatives	Context / RAM	Downloads	Likes
...otron 8B UltraLong 4M Instruct	4192K / 32.1 GB	177	119
UltraLong Thinking	4192K / 16.1 GB	10	3
...a 3.1 8B UltraLong 4M Instruct	4192K / 32.1 GB	176	24
...a 3.1 8B UltraLong 2M Instruct	2096K / 32.1 GB	875	9
...otron 8B UltraLong 2M Instruct	2096K / 32.1 GB	120	17
Cthulhu 8B V1.4	1048K / 16.1 GB	12	9
...otron 8B UltraLong 1M Instruct	1048K / 32.1 GB	2059	57
...a 3.1 8B UltraLong 1M Instruct	1048K / 32.1 GB	1387	29
...xis Bookwriter Llama3.1 8B Sft	1048K / 16.1 GB	17	4
Zero Llama 3.1 8B Beta6	1048K / 16.1 GB	4	1

Note: green Score (e.g. "73.2") means that the model is better than MrRobotoAI/C4.

Rank the C4 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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Release v20260328a

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C4 by MrRobotoAI

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C4 Benchmarks

C4 Parameters and Internals

Best Alternatives to C4

Rank the C4 Capabilities

What open-source LLMs or SLMs are you in search of? 53834 in total.