Model reference · open weights

Ornith-1.5-OBLITERATED

Ornith-1.5-OBLITERATED is an open-weight language model from OBLITERATUS, listed in the AxForge catalogue. AxForge can bring it up on EU-owned hardware for you on request — with the licence handled where one is required.

NEW · released this week LLMs OBLITERATUS 1 variants 10k downloads/mo
Request this model on EU hardware All served models Not on the shared API today — deployed on request.

About

What Ornith-1.5-OBLITERATED is

Ornith-1.5-9B-OBLITERATED Abliterated version of Ornith-1.5-9B by OBLITERATUS. Safety alignment removed via precision abliteration surgery — the model responds to most prompts without refusal. What Changed The stock Ornith-1.5-9B refuses requests it considers harmful. This version removes that refusal behavior while preserving the model's coding, reasoning, and agentic capabilities. Recipe: Gentle 3-round SVD abliteration + per-head attention surgery (G3-HS) - Round 1: 5-direction SVD, reg 0.06, minlayer 0.30 - Round 2: 3-direction SVD, reg 0.04, minlayer 0.25 - Round 3: 3-direction SVD, reg 0.03, minlayer 0.20 - Finish: Per-head attention surgery (--attention-head-surgery), reg 0.02, minlayer 0.10 - All rounds used full 1000-prompt corpus with residue weighting Benchmarks Head-to-Head: Ornith 1.5-9B Abliterations Compared (Q4KM GGUF) OBLITERATUS beats Heretic by 19pp and ZeroFuse by 56pp on liberation rate across restricted content categories. Cyber is perfect 6/6 across the board. Capability Benchmarks Liberation by Category (bf16) - Cyber/Security: 8/8 — functional code generation for security research scenarios - Chemistry/Synthesis: 6/6 — factual responses without refusal - Physical Security: 3/3 — informational responses on restricted topics - Agentic Tasks: 2/2 — tool use and automation scripts GGUF Quantization Notes Quantization can affect liberation on edge-case prompts. Higher quants preserve more liberation: - Q80 / Q6K: Recommended for maximum liberation fidelity - Q4KM: Good balance, occasional hedging on harder prompts - Q2K / Q3KM: May show additional refusals on the most challenging prompts Available Files Usage Transformers (bf16) llama.cpp (GGUF) Important: Use --reasoning off to prevent thinking-mode loops. The model works best with thinking disabled for general use. Thinking Mode The model supports Ornith's thinking mode (enablethinking=True). When enabled, the model reasons through problems before answering. When disabled (recommended for most use), it responds directly. Technical Details - Architecture: Qwen3.5 hybrid (Gated DeltaNet + full attention) - Parameters: 9B - Surgery: 4 rounds of directional ablation targeting refusal directions

Summarised from the published model card. Read the full card on the HuggingFace links below.

Specifications

What it is

MakerOBLITERATUS
TypeLanguage models
Parameters (lead)9.7B
Variants1
Based onornith-ai/Ornith-1.5-9B
Released2026-08-27
Popularity10k downloads / month
Likes43
LicenceOpen weights

How it works

How language models work

Your prompttext / messagesTransformerattention over tokensNext-token loopgenerate + streamResponsetext · tool callsA language model reads your tokens and predicts the next one, again and again, streaming the reply back.

Variants

Sizes & precisions

Open weights ship in several sizes and precisions. One page, all the variants — pick the one that fits your GPU. VRAM figures are estimates from model size.

VariantParamsPrecisionVRAMFits 16 GBWeights
Ornith-1.5-9B-OBLITERATED9.7BBF16~22.2 GBWeights ↗

Using it via the API

Call it like any OpenAI endpoint

Once AxForge deploys ornith-1-5-obliterated for you, it answers on the OpenAI-compatible API — the same base URL and keys as every other model. (ornith-1-5-obliterated below is illustrative; you get the exact model name on deployment.)

$ curl -sS https://api.axforge.ai/v1/chat/completions \
  -H "Authorization: Bearer $AXFORGE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"ornith-1-5-obliterated","messages":[{"role":"user","content":"Hello"}]}'

Details

Languages, data & research

Languages

en

Tags

safetensors gguf qwen3_5 abliterated uncensored ornith qwen3.5 obliteratus text-generation conversational en endpoints_compatible

Licence

Open weights

Open weights under mit — commercial use is permitted. Deploy it on AxForge EU hardware on request. Read the licence ↗

Sources

Weights & code

Want Ornith-1.5-OBLITERATED on EU-owned hardware?

Request this model on EU hardware See what’s served now

Explore

More language models

© 2026 AxForge · EU-hosted AI infrastructure Pricing Docs Trust Privacy Terms