TypeSafe AI introduced Jev, a new class of LLM called "System One" or "Decision Models" that outputs structured floating-point numbers instead of text. The model accepts text inputs and returns confidence scores for yes/no and multiple-choice questions, priced at only $0.042 per million tokens with free output—making it cheaper than GPT-5 Nano.
Background
The LLM landscape is evolving beyond pure text generation toward specialized architectures for specific tasks. TypeSafe AI (known for the Scala framework) is pivoting into foundation models with this novel approach.
- Source
- Simon Willison
- Published
- Sep 22, 2026 at 07:09 AM
- Score
- 7.0 / 10