Sunday is my day to skim what shipped, note what seems worth going deeper on, and write a short annotated list before the week catches up with me again. This week was genuinely busy: three frontier labs released major models within a 10-day window, a speech model landed quietly from Microsoft, and n8n crossed a milestone that made me rethink some assumptions. I'm running three AI-curated directory sites built on Astro 5 + Claude Haiku 4.5. These releases matter to me not just as interesting tech but as practical inputs for what I build next. DeepSeek V4 Preview (April 24) DeepSeek dropped V4 on April 24: a 1.6T-parameter Mixture-of-Experts model with 49B parameters activated per forward pass, a 1M-token context window, and an MIT license. The V4-Pro and V4-Flash variants are both live via their API, with Pro at $0.30 per million tokens.…