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tinyllama-1.1b-chat-v1.0-uc-v3-bpw5
SipsaLabs/tinyllama-1.1b-chat-v1.0-uc-v3-bpw5
tinyllama-1.1b-chat-v1.0-uc-v3-bpw5 is a machine learning model from SipsaLabs. Use it for the machine learning task on the model card, and read the license before you ship it in a product. The card lists the license as other.
UltraCompress is retired. Its public materials preserve historical research; new API access and paid pilots are no longer offered. Results below apply to their recorded evaluation conditions.
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Public
Updated Sep 30, 2026
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At a glance
- License
- other
- Access
- Public
- Created
- May 8, 2026
- Updated
- Sep 30, 2026
- SHA
- 53a0e239
Base models
Model card
From the Hugging Face model README
tinyllama-1.1b-chat-v1.0-uc-v3-bpw5
UltraCompress is retired. Its public materials preserve historical research; new API access and paid pilots are no longer offered. Results below apply to their recorded evaluation conditions.
The public v0.6.27 CLI checks basic pack structure and computes SHA-256 fingerprints unless hashing is skipped. It does not reconstruct weights, reproduce the evaluations below, or automatically compare its fingerprint with a trusted reference.
Near-lossless 5-bit compression (~1% perplexity; lossy) of TinyLlama/TinyLlama-1.1B-Chat-v1.0 — produced by Sipsa Labs (UltraCompress).
- Reproducible, cryptographically verifiable reconstruction: a deterministic decode to the SHA-256-pinned validated artifact (not bit-identical to the original bf16 model).
- Independently perplexity-verified end-to-end.
- License: BUSL-1.1 + Additional Use Grant.
pip install ultracompress
Documentation & verification: https://sipsalabs.com · https://github.com/sipsalabs/ultracompress
Patents pending.
- License
- other
- Created
- May 8, 2026
- Updated
- Sep 30, 2026