Weave ships Router 2.0, routing coding-agent

Router 2.0 adds a complexity classifier trained on 10× more sessions, cache-aware model switching, and an escalation classifier that detects stalls, loops, and misses. It can route across multiple flat-rate subscriptions before metered APIs; Weave reports roughly half the cost and twice the speed of GPT-6 Astra at comparable quality in its published benchmarks.