Show HN: Vantage-V-AI – 2-bit ternary KV-cache with attention sinks

Canvas by AgentGrid.io

A visual canvas for collaborating with AI, for teams who want to sketch ideas first and let AI help bring them to life.

Why this: Official source · Covers AI and design · Published within 24 hours

Perit Marketplace

A new marketplace where data providers can sell data and reinforcement-learning tasks to frontier AI labs, worth a look for teams with high-quality data.

Why this: Official source · Covers AI and Data · Published within 24 hours

Auditing every tool on my site against open source, and what changed

While building PocketPDF, the author first wrote many features himself, then audited each one against open-source alternatives and replaced quite a few, useful for anyone trying to avoid reinventing the wheel.

Why this: Covers Tools and AI · Published within 6 hours

AI Observer coding assistants: local costs and traces

Why this: Covers AI and developer · Published within 6 hours

GotEmail

A fast, native and smart email app for Mac and iPhone, for Apple users looking for a smoother mail client.

Why this: Official source · Covers AI · Published within 24 hours