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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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</style>
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</head>
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<body>
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<h1 id="divinci-ai">Divinci AI</h1>
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<p class="tagline">Feature-level interpretability artifacts for open transformers β
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built openly, validated empirically.</p>
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<p>A <strong>vindex</strong> is a transformer's weights decompiled into
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a queryable feature database. It exposes the entity associations,
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circuit structure, and knowledge-editing surfaces that live inside a
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model's FFN layers β without requiring GPU inference for most
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operations.</p>
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<p>Think of it as the model's index: the thing you search before you run
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it.</p>
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<hr />
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<h2 id="interactive-viewer">Interactive viewer</h2>
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<p><a href="https://huggingface.co/spaces/Divinci-AI/vindex-viewer"><img
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src="https://huggingface.co/spaces/Divinci-AI/vindex-viewer/resolve/main/vindex-hero-bg.gif"
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alt="LarQL Vindex Viewer β interactive 3D + 2D circuit visualization" /></a></p>
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<p><strong><a
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href="https://huggingface.co/spaces/Divinci-AI/vindex-viewer">β Open the
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interactive viewer</a></strong></p>
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<p>Pick any of 9 models from the dropdown. Toggle between the 3D
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cylinder spiral and a flat 2D circuit/network view. Hit <strong>β
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Compare</strong> to render the current model alongside Bonsai 1-bit,
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side-by-side β the contrast between fp16 structure (organized rings) and
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1-bit dissolution (scattered cloud) is the most direct picture of what
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1-bit training does to a transformer's internal organization that we
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know how to render. Search for entity features
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(<code>?q=paris&model=gemma-4-e2b</code>) to see real probe-derived
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activations light up across the layer stack β backed by a 5000-token
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offline-built search index.</p>
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<hr />
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<h2 id="published-vindexes">Published vindexes</h2>
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<p>Cross-family evidence in hand: <strong>Gemma</strong>,
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<strong>Qwen3</strong>, <strong>Mistral</strong>,
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<strong>Llama</strong>, <strong>OpenAI MoE</strong>, plus two 1-bit
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controls.</p>
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<table>
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<thead>
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<tr>
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<th>Model</th>
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<th>Architecture</th>
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<th>Params</th>
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<th>Vindex</th>
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<th>C4 (layer temp)</th>
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<th>Notes</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><strong>Gemma 4 E2B-it</strong></td>
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<td>Dense (Gemma 4)</td>
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<td>2B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/gemma-4-e2b-vindex">gemma-4-e2b-vindex</a></td>
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<td><strong>0.0407 Β± 0.0004</strong> β</td>
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<td>3-seed validated; headline universal-constant model</td>
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</tr>
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<tr>
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<td>Qwen3-0.6B</td>
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<td>Dense (Qwen 3)</td>
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<td>0.6B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/qwen3-0.6b-vindex">qwen3-0.6b-vindex</a></td>
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<td>0.411</td>
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<td>Smallest published; Qwen3 family-elevated C4</td>
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</tr>
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<tr>
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<td>Qwen3-8B bf16</td>
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<td>Dense (Qwen 3)</td>
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<td>8B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/qwen3-8b-vindex">qwen3-8b-vindex</a></td>
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<td>0.804</td>
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<td>Architecture control for Bonsai</td>
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</tr>
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<tr>
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<td>Qwen3.6-35B-A3B</td>
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<td>MoE (Qwen 3.6)</td>
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<td>35B / 3B active</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/qwen3.6-35b-a3b-vindex">qwen3.6-35b-a3b-vindex</a></td>
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<td>β</td>
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<td>256 experts, 40 layers</td>
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</tr>
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<tr>
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<td>Ministral-3B</td>
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<td>Dense (Mistral 3)</td>
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<td>3B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/ministral-3b-vindex">ministral-3b-vindex</a></td>
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<td>0.265</td>
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<td>fp8 β bf16 reconstruction</td>
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</tr>
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<tr>
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<td>Llama 3.1-8B</td>
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<td>Dense (Llama 3.1)</td>
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<td>8B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/llama-3.1-8b-vindex">llama-3.1-8b-vindex</a></td>
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<td><strong>0.012</strong> β</td>
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<td>Llama family signature</td>
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</tr>
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<tr>
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<td>MedGemma 1.5-4B</td>
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<td>Dense (Gemma multimodal)</td>
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<td>4B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/medgemma-1.5-4b-vindex">medgemma-1.5-4b-vindex</a></td>
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<td><strong>1.898 β </strong></td>
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<td>45Γ cohort anomaly β under investigation</td>
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</tr>
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<tr>
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<td>GPT-OSS 120B</td>
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<td>MoE (OpenAI)</td>
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<td>120B</td>
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<td><a
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href="https://huggingface.co/Divinci-AI/gpt-oss-120b-vindex">gpt-oss-120b-vindex</a></td>
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<td>β</td>
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<td>S[0] grows 117Γ with depth (L0=111 β final=13,056)</td>
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</tr>
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<tr>
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<td><strong>Bonsai 8B</strong></td>
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<td>1-bit (Qwen 3 base, post-quantized)</td>
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<td>8B</td>
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<td><em>vindex pending publish</em></td>
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<td>0.429</td>
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<td><strong>C5 = 1</strong> (circuit dissolved); var@64 = 0.093</td>
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</tr>
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<tr>
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<td><strong>BitNet b1.58-2B-4T</strong></td>
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<td>1-bit (Microsoft, native)</td>
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<td>2B</td>
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<td><em>vindex pending publish</em></td>
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<td>(Phase 2 pending)</td>
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<td><strong>var@64 = 0.111</strong> mean across 30 layers β n=2
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confirmation of dissolution</td>
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</tr>
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</tbody>
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</table>
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<hr />
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<h2 id="whats-a-vindex">What's a vindex?</h2>
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<p>Standard model weights tell you <em>what</em> a model computes. A
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vindex tells you <em>where</em> it stores specific knowledge and
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<em>which features</em> need to change for a targeted edit.</p>
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<p>Concretely: given a query like <code>"Paris β capital"</code>, a
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vindex walk returns the layers, feature directions, and token
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associations that encode that fact. A patch operation writes a rank-1 ΞW
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that suppresses or overwrites that association β compiled back to
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standard HuggingFace safetensors for inference.</p>
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<p>LarQL (the toolchain that builds vindexes) is open-source: <a
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href="https://github.com/chrishayuk/larql">github.com/chrishayuk/larql</a>
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| <a
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href="https://github.com/Divinci-AI/larql">github.com/Divinci-AI/larql</a>.</p>
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<hr />
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<h2 id="research">Research</h2>
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<h3
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id="paper-1--architectural-invariants-of-transformer-computation">Paper
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1 β <em>Architectural Invariants of Transformer Computation</em></h3>
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<p><em>arXiv preprint forthcoming</em></p>
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<p>Five properties measured across every model in this collection.
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<strong>Three hold within Β±15% coefficient of variation</strong> across
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architectures, organizations, and scales. <strong>One collapses under
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1-bit quantization</strong> β replicated across two independent 1-bit
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models from two organizations (n = 2). <strong>One scales monotonically
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with model size</strong>.</p>
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<p>The headline universal constant β layer temperature C4 β is
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reproducible at the <strong>1% precision level</strong>: a three-seed
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run on Gemma 4 E2B gives <code>C4 = 0.0407 Β± 0.0004</code>, with
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circuit-stage count perfectly stable (<code>C5 = 4 Β± 0</code>) across
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all seeds.</p>
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<h3 id="paper-2--constellation-edits">Paper 2 β <em>Constellation
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Edits</em></h3>
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<p><em>draft, arXiv after 3-seed runs + Ξ±-sweep appendix</em></p>
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<p>Mechanistic knowledge editing in transformer feature space. Includes
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a negative result: why activation-space edits fail in 1-bit models, and
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what weight-space geometry reveals about why.</p>
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<h3 id="companion-blog-series--the-interpretability-diaries">Companion
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blog series β <em>The Interpretability Diaries</em></h3>
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<ul>
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<li><a
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href="https://divinci.ai/blog/architecture-every-llm-converges-to/">Part
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I β The Architecture Every Language Model Converges To</a> β five
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universal constants, what holds and what doesn't</li>
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<li><a
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href="https://divinci.ai/blog/deleting-paris-from-a-language-model/">Part
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II β Deleting Paris from a Language Model</a> β Gate-3 surgical
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knowledge edit with a receipt; rank-1 ΞW that suppresses one fact at
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+0.02% perplexity</li>
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<li><a href="https://divinci.ai/blog/when-the-circuit-dissolves/">Part
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III β When the Circuit Dissolves</a> β two natively-trained 1-bit
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models, two organizations, same dissolution: var@64 β 0.10 vs ~0.85 for
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fp16</li>
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</ul>
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<p>Working notebooks: <a
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href="https://github.com/Divinci-AI/server/tree/preview/notebooks">github.com/Divinci-AI/server/tree/preview/notebooks</a></p>
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<hr />
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<h2 id="working-in-public">Working in public</h2>
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<p>Every measurement in our papers traces back to a notebook and a
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commit. Negative results ship alongside positive ones β the MLP
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compensation mechanism that defeats knowledge editing in 1-bit models is
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in the notebooks, not buried in a supplement.</p>
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<p>If you replicate a result and find a discrepancy, open an issue on
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the LarQL repo.</p>
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<hr />
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<p><em>Vindexes on this org are free for academic and research use
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(CC-BY-NC 4.0). Commercial licensing: <a
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href="mailto:mike@divinci.ai">mike@divinci.ai</a></em></p>
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</body>
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</html>
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