Newt is a Swift package that answers multiple-choice, graded, and yes/no questions about text using an on-device language model, returning a probability for each option. Named after Isaac Newton—mirroring TypeSafe's Jev, named for William Stanley Jevons—it runs Qwen3 exports such as qwen3_4b_4bit_dynamic via Apple's Core AI. Available on GitHub, it keeps TypeSafe's API names so examples carry over. Probabilities are uncalibrated and should be treated as rankings.
No score is assigned. Sources and their independence are shown in the citation chain below.