Combining Jev and Opus 5.5 Emerges as Cost-Efficient Reasoning Workflow for Developers

TypeSafe's Jev decision model paired with Claude Opus 5.5 is gaining traction among developers as an architecture that slashes costs while preserving frontier-level reasoning capabilities. The combination, which pairs Jev's fast, structured decision-making with Opus 5.5's open-ended reasoning, addresses a persistent problem in AI-assisted development: expensive models spending computation on choices that should take milliseconds.