OpenRouter Model Fusion Reviews

Reviewers, all of them founders rather than end users, describe OpenRouter Model Fusion mainly as useful infrastructure for multi-model workflows: one API or key, broad model access, quick switching, fallback support, and easier cost control. Makers of Kilo Code, Devin by Cognition, and Budibase say it helps them avoid lock-in and test or route tasks across providers with less overhead. The main limit is that feedback is narrow and highly one-sided, with almost no direct criticism or user-level experience.