purebyte

Tiny byte-level AI models on your CPU. PureByte is an architecture and a runtime for AI Specialists: models of 1 to 29 MiB that read raw bytes and answer with decisions, scores and exact byte ranges instead of generated text. A short decision takes 0.8 to 1.5 ms on a 12-core desktop CPU (3 to 6 ms on one thread), offline, with the same bits from every CPU kernel and thread count of a platform, and the same decisions and spans expected across platforms.

This package bundles the native PureByte runtime and its purebyte command, with thin Python bindings (standard library only). It runs any PureByte model file, including the three example specialists of the first release: pii (masks personal data), secrets-code (finds credentials in code) and secrets-bin (finds credentials in binaries).

Install

pip install purebyte
purebyte models pull pii                 # an example specialist, checked against its SHA-256

Command line

purebyte redact --model pii ticket.txt           # personal data masked, the rest copied byte for byte
purebyte scan --model secrets-code .             # leaked credentials in a repository
purebyte scan --model my-model.gguf data/        # any model you trained
purebyte bench --model pii                       # latency and throughput on this machine

Python

import purebyte

redaction = purebyte.redact(open("ticket.txt", "rb").read(), model="pii")
print(redaction.output.decode())

result = purebyte.scan("settings.py", model="secrets-code")
for finding in result.findings:
    print(finding.file, finding.line, finding.col, finding.snippet_masked)

Detected values are masked in every output unless you explicitly ask to reveal them.

Learn more

• The architecture, the examples, benchmarks and documentation: https://github.com/purebyte-ai/purebyte
• Train your own specialist: https://github.com/purebyte-ai/purebyte-train/blob/main/docs/training.md
• The Python API: https://github.com/purebyte-ai/purebyte/blob/main/docs/api.md#python
• Licenses: the code is Apache-2.0; the released model weights have their own license (https://github.com/purebyte-ai/purebyte/blob/main/MODEL_LICENSE.md).