BitCPM4 0.5B is an open-source language model by openbmb. Features: 0.5b LLM, VRAM: 0.9GB, Context: 32K, License: apache-2.0, LLM Explorer Score: 0.21.
Model Card on HF 🤗: https://huggingface.co/openbmb/BitCPM4-0.5B
BitCPM4 0.5B 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)
BitCPM4 0.5B Parameters and Internals
| LLM Name | BitCPM4 0.5B |
| Repository 🤗 | https://huggingface.co/openbmb/BitCPM4-0.5B |
| Model Size | 0.5b |
| Required VRAM | 0.9 GB |
| Updated | 2026-05-06 |
| Maintainer | openbmb |
| Model Files | |
| Supported Languages | zh en |
| Model Architecture | MiniCPMForCausalLM |
| License | apache-2.0 |
| Context Length | 32768 |
| Model Max Length | 32768 |
| Transformers Version | 4.46.3 |
| Tokenizer Class | LlamaTokenizer |
| Vocabulary Size | 73448 |
| Torch Data Type | bfloat16 |
Best Alternatives to BitCPM4 0.5B
Best Alternatives |
Context / RAM |
Downloads |
Likes |
|---|---|---|---|
| MiniCPM4 0.5B | 32K / 0.9 GB | 50323 | 78 |
Note: green Score (e.g. "73.2") means that the model is better than openbmb/BitCPM4-0.5B .
Rank the BitCPM4 0.5B Capabilities
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Original data from HuggingFace, OpenCompass and various public git repos.
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Release v20260328a