Spark X2.5 4B NVFP4 is an open-source language model by Ttimms. Features: 4b LLM, VRAM: 2.8GB, Context: 1024K, License: apache-2.0.
| LLM Name | Spark X2.5 4B NVFP4 |
| Repository 🤗 | https://huggingface.co/Ttimms/Spark-X2.5-4B-NVFP4 |
| Base Model(s) | |
| Model Size | 4b |
| Required VRAM | 2.8 GB |
| Updated | 2026-09-13 |
| Maintainer | Ttimms |
| Model Type | spark2_5 |
| Model Files | |
| Supported Languages | en zh |
| Model Architecture | Spark2_5ForCausalLM |
| License | apache-2.0 |
| Context Length | 1048576 |
| Model Max Length | 1048576 |
| Transformers Version | 5.14.1 |
| Tokenizer Class | PreTrainedTokenizerFast |
| Beginning of Sentence Token | <|start▁of▁sentence|> |
| End of Sentence Token | <|end▁of▁sentence|> |
| Unk Token | <unk> |
| Vocabulary Size | 131072 |
Best Alternatives |
Context / RAM |
Downloads |
Likes |
|---|---|---|---|
| Spark X2.5 4B | 1024K / 8.3 GB | 429 | 106 |
| Spark X2.5 4B Hadamard GSQ | 1024K / 4.5 GB | 535 | 2 |
| Spark X2.5 4B FP8 | 1024K / 4.4 GB | 42 | 10 |
| Spark X2.5 4B INT8 | 1024K / 4.5 GB | 35 | 8 |
| Spark X2.5 4B Base | 1024K / 8.3 GB | 16 | 5 |
| BetterWright 4B | 1024K / 8.2 GB | 450 | 6 |
| Spark X2.5 4B MLX 8bit | 1024K / 4.4 GB | 858 | 3 |
| Spark X2.5 4B MLX 4bit | 1024K / 2.3 GB | 617 | 2 |
| Spark X2.5 4B Uncensored | 1024K / 8.2 GB | 238 | 0 |
| ...2.5 4B Abliterated Safetensors | 1024K / 8.2 GB | 47 | 2 |