Data annotation and RL env market is red-hot in SF — enterprises are buying post-training too
Ok_Philosophy_4031 · reddit · 2026-10-22
The poster observed that the market for data annotation and RL environments in San Francisco is extremely hot, with many startups achieving exceptional traction in short order — and buyers reportedly include not just frontier labs but enterprises as well.
The tension worth discussing: most enterprise AI teams are still fighting harnesses and tools to get apps reliably into production. Post-training is a big leap in expertise, data, infrastructure and cost, and internal champions struggle to articulate ROI. The author asks practitioners: are you actually seeing enterprise demand for post-training? What's the tipping point, and what's holding back those who believe in it?
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