The S5 Labs library

The notebook,
wide open.

Technical guides, reference material, current news, and thoughts on AI, automation, and software. Pick a topic or follow a question.

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The reference desk

Choose the model.
Understand the machine.

Two guides to keep close when you’re exploring open models and running AI locally.

Follow a topic.

A curated starting point, with room to go deeper.

01

Artificial intelligence

Evaluate where AI is useful, understand the systems behind it, and make informed choices about models, data, and deployment.

02

Workflow automation

Map the work, connect the tools, and build repeatable processes with clear ownership and exception handling.

03

Software engineering

Practical architecture and development decisions for software that people can use, maintain, and adapt.

Technical foundations.

Browse technical guides
Technical guide29 min read

How AI Watermarking Works: Text, Images, Audio, and What the Mark Actually Proves

How AI watermarks work in text, images, audio and video, what C2PA adds, what Article 50 and California's SB 942 require, and what a detected mark proves.

Technical guide13 min read

One Shared Key Let Anyone Decode What Claude, GPT and Gemini Were Hiding in Their Reasoning

One shared key sealed the reasoning blocks Anthropic, OpenAI and Google return to clients, letting a weaker model decode a stronger sibling's thoughts.

Technical guide14 min read

How AI Finds Vulnerabilities: Fuzzing, Reasoning, and Validation

How AI agents find software vulnerabilities: hybrid fuzzing, static analysis, LLM reasoning, validation, benchmarks, and patch workflows.

Latest insights.

Browse insights
Insight4 min read

NVIDIA Agrees to Buy Hugging Face. Open-Model Builders Should Read the Commitments.

NVIDIA's $12.93B Hugging Face agreement promises hardware choice. What the filing says, what remains unproven, and how builders can preserve portability.

Insight6 min read

GPT-6 Astra Brings Better Computer Use and a Higher Bar for Delegating Work

OpenAI's GPT-6 Astra improves computer use and complex work. A closer look at launch benchmarks, API costs, limited rollout, and safety monitoring.

Insight4 min read

Gemini 3.8 Flash Keeps the Token Price, but Task Costs Need a Fresh Look

Google launches Gemini 3.8 Flash and restricted Flash Cyber. More reasoning can raise task costs, and introductory API pricing ends in December.