Ventorah

Vistep is an interactive educational visualization site for explaining mechanisms in science, computation, and everyday systems through bilingual English-and-Chinese visual stories. Its chaptered films synchronize animation with recorded narration, captions, and transcripts; browser-based experiments connect independent calculations to geometry, motion, and readouts so changing inputs updates the visualization. Topics include JPEG compression, bicycle gearing, refrigeration, pendulums, laser printing, web loading, and elevator scheduling. The open-source collection is built with Astro, React, TypeScript, SVG, Canvas, and Three.js, and can be run locally with Node.js and pnpm. The source code and documentation are MIT licensed.

A browser-based AI 3D creation platform that generates 3D assets from text prompts or images. It provides material generation, retopology, rigging, and motion-capture features, with exports for game engines and 3D printing.

Vals is a code-generation evaluation product that uses a company's GitHub codebase to build an internal coding benchmark. It evaluates coding models and agents against private, continuously evolving tasks to identify which systems perform best on the company's work and which offer the strongest return on investment. The platform is also described as supporting pre-release testing and evaluation of agentic coding work that may unfold over hours, days, or weeks, while accounting for factors such as token cost and latency.

Vortex is an open-source columnar file format for streaming compressed analytical and machine-learning training data from object storage such as S3 to CPUs and GPUs. It separates logical and physical types and uses layouts, zone maps, cascading encodings, and byte coalescing to reduce unnecessary I/O, decompression, and memory copies; its encodings include dictionary arrays, run-end encoding, and bit-packing, allowing computation on compressed data. The format is designed for zero-copy execution with Apache Arrow and integration with DataFusion, DuckDB, and Polars, with scan paths that can use buffer pools, kTLS, and RDMA to move data toward CPU or GPU execution.