Tools.

Small, focused utilities for teams building with AI and making things. Free.

All tools

Which AI Model?

Four questions, one specific model recommendation — with the reasoning. Covers Claude 4, GPT-4o, Gemini 2.5, Llama 4, and DeepSeek V3.

Self-hosted proxy that records per-model AI spend in real time. Drop-in for any OpenAI-compatible endpoint. Hard budget limits, zero code changes.

Plywood Cut Optimizer

Enter your parts list, set your sheet size, and get an optimized cut layout with waste percentage. Guillotine packing algorithm, runs in the browser.

Prompt Estimator

Paste a prompt and see token count, estimated cost across models, and context window headroom before you run it.

Context Window Visualizer

See how different content sizes fill each model's context window. Know when you'll hit the limit before it matters.