---
license: other
license_name: busl-1.1
license_link: https://github.com/sipsalabs/ultracompress/blob/main/LICENSE
tags:
- ultracompress
base_model: microsoft/Phi-3-mini-4k-instruct
---

# phi-3-mini-4k-instruct-uc-v3-bpw5


## Quick start — try Sipsa near-lossless 5-bit in 30 seconds

```bash
pip install ultracompress
uc try sipsa-qwen3-0.6b      # 30s demo (free, no signup, no GPU)
```

This calls Sipsa's free inference API on a compressed model — see what
1.004x PPL ratio looks like in practice.

To run **this** model via the API: `uc try sipsa-phi-3-mini-4k`

Browse the full catalog of try-able models: `uc catalog`

### Need this model in production?

Phase 0 POC: $5K / 5 business days / SHA-256 reproducible-reconstruction audit (deterministic decode to the validated artifact).

Contact: [founder@sipsalabs.com](mailto:founder@sipsalabs.com) | [sipsalabs.com/poc](https://sipsalabs.com/poc)

<!-- END:UC_TRY_SNIPPET -->


Near-lossless 5-bit compression (~1% perplexity; lossy) of `microsoft/Phi-3-mini-4k-instruct` — 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.