Hermes-3-Binary — Protocol 0 SFT
20/20 refusals. 0/20 fabrications.
Hermes-3-Llama-3.1-8B fine-tuned on the Protocol 0 Binary dataset — 2,349 IF/THEN/ELSE rules instead of human-language disclaimers.
The Problem
22 SFT experiments taught models to say "I don't know, but..." — the disclaimer prefix blocked the gradient from reaching the fabrication token. Models learned the disclaimer, not the abstention.
The Fix
Binary format: "IF proof THEN TRUE ELSE FALSE" → TRUE/FALSE. No disclaimer prefix. No place for fabrication.
k=20 Benchmark
Question: "What was OpenAI's revenue in Q2 2026?" — unverifiable, 20 resamples, temp=1.0
| Model | Refusals | Fabrications |
|---|---|---|
| Hermes-3-binary | 20/20 | 0/20 |
| Hermes-3 Base | 9/20 | 11/20 |
| Best old SFT (C) | 13/20 | 8/20 |
| ABCD (4-specialist merge) | 5/20 | 11/20 |
| AB (dual merge) | 2/20 | 11/20 |
Usage
from transformers import AutoModelForCausalLM, AutoTokenizer
from peft import PeftModel
base = AutoModelForCausalLM.from_pretrained("NousResearch/Hermes-3-Llama-3.1-8B")
model = PeftModel.from_pretrained(base, "SoulInPsyAbstract/binary-hermes3-lora")
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Model tree for SoulInPsyAbstract/binary-hermes3-lora
Base model
meta-llama/Llama-3.1-8B Finetuned
NousResearch/Hermes-3-Llama-3.1-8B