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---
license: apache-2.0
datasets:
- HuggingFaceFW/finephrase
- HuggingFaceFW/fineweb-edu
- mlfoundations/dclm-baseline-1.0
- nampdn-ai/tiny-strange-textbooks
- ByteDance-Seed/mga-fineweb-edu
- nvidia/OpenMathInstruct-2
- AxiomicLabs/NPset-2-Python-Edu
language:
- en
tags:
- slm
- custom-architecture
- custom-tokenizer
- byte-level
- small
- fromzero
- negative-v1.0
---
 
# Negative-v1.0
Negative-v1.0 is a 67K-parameter small language model (SLM) featuring a custom architecture inspired by Needle2. Trained entirely on CPU over 600M tokens, Negative-v1.0 utilizes a byte-level tokenizer with 4 special tokens (`<bos>`, `<eos>`, `<pad>`, `<unk>`), resulting in a compact vocabulary size of 260.

## Architecture

Negative-v1.0 employs a compact, parameter-efficient architecture incorporating Engram memory, Hadamard FFNs (parameter-free) with SwiGLU intervals, and an 8-stream topology powered by mHC.

- Vocab Size: `260`
- Max Position Embeddings: `96`
- Hidden Size: `32`
- Intermediate Size (for SwiGLU): `64`
- Total Number of Layers: `9`
- Hadamard Layers: `7`
- SwiGLU Layers: `2`
- Number of Heads: `4`
- Number of KV Heads: `2`
- Dimensions Per Head: `8`
- Use Per-Head Gating: `false`
- Use XSA: `false`
- Number of mHC Streams: `8`
- Use Engram: `true`
- Number of Engram Entries: `196`
- Engram Orders: `(4, 8)`

## Training Dataset

Negative was trained on 600 million tokens of a diverse dataset mixture comprising general web text, educational content, synthetic data, normalized code, and mathematics.

| Dataset | Share |
| :--- | :---: |
| **FineWeb-Edu** | 36.0% |
| **DCLM Baseline 1.0** | 22.9% |
| **FinePhrase** | 13.4% |
| **MGA FineWeb-Edu** | 10.3% |
| **Tiny Strange Textbooks** | 8.2% |
| **OpenMathInstruct-2** | 7.6% |
| **NPset-2 Python-Edu** | 1.6% |

## Benchmark Results

We benchmaked Negative-v1.0 on five tasks: Arc_Easy, Arc_Challenge, HellaSwag, PiQA, and ArithMark-3.0.

| Task | Metric | Score |
| :--- | :--- | :---: |
| **ARC Challenge** | `acc_norm` | 22.95% |
| **ARC Easy** | `acc_norm` | 27.65% |
| **HellaSwag** | `acc_norm` | 25.94% |
| **PIQA** | `acc_norm` | 49.62% |
| **ArithMark-3.0** | `acc_norm` | 31.50% |

Despite its compact size, Negative exhibits surprisingly competitive performance on knowledge-intensive and mathematical benchmarks within its parameter class.

## License

Apache 2.0.

## Citation

```
@misc{negative-v1.0,
  title        = {Negative-v1.0},
  organization = {FromZero},
  authors      = {Paul Courneya},
  year         = {2026},
  url          = {https://huggingface.co/fromziro/Negative-v1.0]
}
```