New models and versions, open weights, and changes in capability and pricing, with their evaluations.
Anthropic released Claude Sonnet 5.5. API prices are unchanged and generation is faster, while its scores rose substantially on agent benchmarks such as Terminal-Bench and CursorBench.
In a Latent Space interview, TypeSafe AI founder Diogo Almeida introduces Jev as a System 1 model designed for code consumption and optimized for intelligence per dollar rather than chat experience. Its key innovation is unpublished RLCD (Reinforcement Learning for Calibrated Decisions), which uses calibrated probabilities instead of human-rating feedback.
Why it matters: Almeida revisits the strategic split between RLHF and RLCD and explains why the model is optimized for reliability rather than benchmark scores.
