Dossier
Pydantic
Coverage of Pydantic in the Nexus archive.
- The creator of Walmart's vibe-coding tool Code Puppy is leaving for AI startup Pydantic
Michael Pfaffenberger, creator of Walmart's internal AI coding tool Code Puppy, is leaving the company to join AI startup Pydantic. Code Puppy, which uses natural-language instructions to help employees build software tools, has over 75,000 users across Walmart, including non-engineers and hourly workers. Walmart confirmed his departure and stated the tool will continue to be supported.
- ChatGPT is no longer OpenAI's most important product. Here's why.
OpenAI and Anthropic are shifting focus from model quality to customer lock-in, prioritizing profit margins over performance. Products like Claude Code and Codex aim to create sticky, high-margin ecosystems, but enterprises like Walmart are developing tools to avoid vendor lock-in.