Carbon 500M is an open-source language model by HuggingFaceBio. Features: 500m LLM, VRAM: 1GB, Context: 8K, License: apache-2.0, LLM Explorer Score: 0.38.
Model Card on HF 🤗: https://huggingface.co/HuggingFaceBio/Carbon-500M
Carbon 500M Benchmarks
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)
Carbon 500M Parameters and Internals
| LLM Name | Carbon 500M |
| Repository 🤗 | https://huggingface.co/HuggingFaceBio/Carbon-500M |
| Model Size | 500m |
| Required VRAM | 1 GB |
| Updated | 2026-05-21 |
| Maintainer | HuggingFaceBio |
| Model Type | llama |
| Model Files | |
| Model Architecture | LlamaForCausalLM |
| License | apache-2.0 |
| Context Length | 8192 |
| Model Max Length | 8192 |
| Transformers Version | 4.57.6 |
| Tokenizer Class | HybridDNATokenizer |
| Padding Token | <|endoftext|> |
| Vocabulary Size | 155776 |
| Errors | replace |
Best Alternatives to Carbon 500M
Best Alternatives |
Context / RAM |
Downloads |
Likes |
|---|---|---|---|
| H2o Danube3 500M Chat | 8K / 1 GB | 22336 | 41 |
| Acheron D | 8K / 1 GB | 109 | 0 |
| Acheron C | 8K / 1 GB | 9 | 0 |
| Acheron | 8K / 1 GB | 7 | 0 |
| Text Arco | 8K / 1 GB | 11 | 0 |
| Arco Plus | 8K / 1.6 GB | 9 | 7 |
| H2o Danube3 500M Base | 8K / 1 GB | 564 | 33 |
| Danube Reasoner | 8K / 1 GB | 7 | 0 |
| Clite 500M | 8K / 1 GB | 7 | 3 |
| Massive | 8K / 1 GB | 12 | 0 |
Rank the Carbon 500M Capabilities
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Original data from HuggingFace, OpenCompass and various public git repos.
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Release v20260328a