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.
Search the libraryThe reference desk
Choose the model.
Understand the machine.
Two guides to keep close when you’re exploring open models and running AI locally.
Capabilities · Licensing · Deployment
Open-source AI models
Compare model families, understand open-weight licensing, and find a starting point for evaluation.
Read the model guideMemory · Hardware · Local inference
Local LLM machines
Compare machine classes, memory limits, and the practical tradeoffs of running models on your own hardware.
Read the hardware guideFollow a topic.
A curated starting point, with room to go deeper.
Artificial intelligence
Evaluate where AI is useful, understand the systems behind it, and make informed choices about models, data, and deployment.
02Workflow automation
Map the work, connect the tools, and build repeatable processes with clear ownership and exception handling.
03Software engineering
Practical architecture and development decisions for software that people can use, maintain, and adapt.
Technical foundations.
Browse technical guidesHow 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.
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.
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 insightsGoogle Ships EmbeddingGemma 2: Text, Images, Video and Audio in One Vector Space
EmbeddingGemma 2 embeds text, code, image, video and audio in one 768-d space, ungated under Apache 2.0. Real sizes, self-reported scores, what to test.
Nano Banana 2.1: Half the Per-Image Price, 23 Days Left for Nano Banana 2 on the API
Google's Nano Banana 2.1 about halves the per-image price but triples input rates, and retires Nano Banana 2 on the Gemini API October 29. What to check.
Claude Sonnet 5.5: Compare Cost per Finished Task
Sonnet 5.5 keeps Sonnet 5 token prices. Its claimed savings come from using fewer tokens. How to test that claim in your workflow.