Web-Grounded Decisions (RAG for Decision Models)
A web-grounded decision searches the live web, then answers typed questions about a subject with probabilities and sources in one call. Parallel's Decisions API, launched in late October 2026, is the first to ship publicly by its maker's account. It fixes the stale-knowledge problem of a plain decision model and adds new ones: evidence shared across questions, citations that do not map to answers, and confident answers built on whatever the web repeats most.
Every answer, concept and course, every paper breakdown, all published video lessons, hands-on FDE Lab missions, Premium PDF guides and companion files, the full practice-test bank and work-sample downloads. Referral Premium excludes guide PDFs and their companion files.
6 months · One payment · No auto-renewal
Study alongside free video lessons.
Related course lessons
- Give a model one typed decision at a time →
22 min · Free with sign-in
Harness Engineering for FDEs · syllabus
