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| <h1>Sipsa Labs, Inc.</h1> |
| <blockquote>An <b>experimental and deep tech-and-software company</b> (Delaware C-corp, incorporated May 2026). We invent and ship across the full breadth of tech and software — deep research, runtime systems, novel substrates, infrastructure, hardware-adjacent stacks, and software products that don't fit anywhere else yet. <b>UltraCompress</b> — lossless 5-bit transformer compression — is our first flagship publicly-shipped product. More products in flight.</blockquote> |
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| <div class="hn-banner">Live on Hacker News today: <a href="https://news.ycombinator.com/item?id=48099107">news.ycombinator.com/item?id=48099107</a></div> |
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| <span class="badge">v0.6.2 on PyPI</span> |
| <span class="badge">22 architectures verified</span> |
| <span class="badge">USPTO 64/049,511 + 64/049,517</span> |
| <span class="badge">BUSL-1.1 + Additional Use Grant</span> |
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| <h2>2026-05-11 — 22 architectures verified at 5 bpw, three new sub-1.005× records this week</h2> |
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| <p>Production-grade lossless 5-bit transformer compression across 22 architectures, dense + Mixture-of-Experts + state-space (Mamba), 0.6B to 405B parameters. Mathematically lossless customer-side reconstruction: SHA-256 over reconstructed tensor bytes matches the trainer's measurement, verified by <code>uc verify</code>.</p> |
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| <h2>Tightest verified PPL ratios at 5 bpw</h2> |
| <p><i>(perplexity ratio = compressed PPL / bf16 baseline PPL; FineWeb-edu held-out tail; seq_len = 1024; n = 30-50; seed = 42)</i></p> |
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| <table> |
| <tr><th>Model</th><th>Params</th><th>Type</th><th>PPL ratio</th><th>Notes</th></tr> |
| <tr><td>Phi-3-mini-4k-instruct</td><td>3.8B</td><td>dense</td><td><b>1.00262×</b></td><td>seq_len=128 caveat</td></tr> |
| <tr class="headline"><td><b>Mixtral-8x7B</b></td><td>47B</td><td>MoE</td><td><b>1.00368×</b></td><td>tightest MoE result</td></tr> |
| <tr><td>Qwen3-1.7B-Base</td><td>1.7B</td><td>dense</td><td><b>1.00401×</b></td><td>small-decoder record</td></tr> |
| <tr><td>Qwen3-14B</td><td>14B</td><td>dense</td><td><b>1.00403×</b></td><td>14B-class record</td></tr> |
| <tr><td>Yi-1.5-9B</td><td>8.8B</td><td>dense</td><td><b>1.00414×</b></td><td>>8B record</td></tr> |
| <tr><td>Qwen3-8B</td><td>8B</td><td>dense</td><td><b>1.00440×</b></td><td>8B-class record</td></tr> |
| <tr><td>Mistral-7B-v0.3</td><td>7B</td><td>dense</td><td><b>1.00548×</b></td><td>NEW this week — 9.16× tighter than prior</td></tr> |
| <tr class="headline"><td><b>Hermes-3-Llama-3.1-405B</b></td><td>405B</td><td>dense</td><td><b>1.0066×</b></td><td>largest dense 5-bit lossless on the Hub</td></tr> |
| <tr><td>Qwen3-0.6B</td><td>0.6B</td><td>dense</td><td><b>1.0069×</b></td><td></td></tr> |
| <tr><td>OLMo-2-0425-1B</td><td>1B</td><td>dense</td><td><b>1.0073×</b></td><td></td></tr> |
| <tr><td>SmolLM2-1.7B-Instruct</td><td>1.7B</td><td>dense</td><td><b>1.0075×</b></td><td></td></tr> |
| <tr><td>Mamba-2.8B</td><td>2.8B</td><td>SSM</td><td><b>1.0119×</b></td><td>first published 5-bit lossless on a state-space model</td></tr> |
| <tr><td>Llama-3.1-8B</td><td>8B</td><td>dense</td><td><b>1.0125×</b></td><td>standard eval</td></tr> |
| </table> |
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| <p>Source + reproduce: <a href="https://github.com/sipsalabs/ultracompress">github.com/sipsalabs/ultracompress</a> · full benchmark page: <a href="https://sipsalabs.com/inference">sipsalabs.com/inference</a></p> |
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| <h2>Quick start (3 commands, no GPU required for verify)</h2> |
| <pre>pip install ultracompress |
| hf download SipsaLabs/qwen3-8b-uc-v3-bpw5 --local-dir ./qwen3-8b |
| uc bench ./qwen3-8b</pre> |
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| <h2>Inference API</h2> |
| <p><code>api.sipsalabs.com</code> is live, OpenAI-compatible:</p> |
| <pre>export OPENAI_BASE_URL=https://api.sipsalabs.com/v1 |
| # The official `openai` SDK works unchanged.</pre> |
| <p>Pricing tiers + Compression-as-a-Service contracts at <a href="https://sipsalabs.com/pricing">sipsalabs.com/pricing</a>.</p> |
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| <hr> |
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| <h2>License + IP</h2> |
| <ul> |
| <li>PyPI <code>ultracompress</code> v0.6+ under <b>BUSL-1.1</b> with Additional Use Grant — free for sub-$1M ARR companies + research + individuals. Auto-converts to Apache 2.0 four years after each release.</li> |
| <li>v0.5.x stays Apache-2.0 forever on <code>legacy/0.5.x</code>.</li> |
| <li>Two USPTO provisionals filed 2026-04-25: <b>64/049,511</b> + <b>64/049,517</b>. Supplement covering streaming-compression mechanism filed May 2026.</li> |
| </ul> |
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| <hr> |
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| <h2>Contact</h2> |
| <ul> |
| <li>Pilots / commercial → <a href="mailto:founder@sipsalabs.com">founder@sipsalabs.com</a></li> |
| <li>Patents / licensing → <a href="mailto:legal@sipsalabs.com">legal@sipsalabs.com</a></li> |
| <li>Press / media → <a href="mailto:press@sipsalabs.com">press@sipsalabs.com</a></li> |
| <li>Security disclosure → <a href="mailto:security@sipsalabs.com">security@sipsalabs.com</a></li> |
| <li>General → <a href="mailto:hello@sipsalabs.com">hello@sipsalabs.com</a></li> |
| </ul> |
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| <p><a href="https://sipsalabs.com">sipsalabs.com</a> · <a href="https://github.com/sipsalabs">github.com/sipsalabs</a> · <a href="https://x.com/SipsaLabs">@SipsaLabs on X</a></p> |
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| <p style="color: var(--muted); font-size: .85rem; margin-top: 2rem;">Public verifier dashboard: <a href="https://sipsalabs.com/inference">sipsalabs.com/inference</a> · Selective Disclosure Charter — what we publish vs what we keep internal: see <a href="https://github.com/sipsalabs/ultracompress">github.com/sipsalabs/ultracompress</a></p> |
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