Weave Router is a model router for coding agents that sits in front of Anthropic, OpenAI and Gemini APIs and sends each agent request to the most cost-effective model likely to complete it.
It plugs into Claude Code, Codex, Cursor, opencode or pi with one command.
- 01
Drop-in proxy for Anthropic Messages, OpenAI Chat Completions and Gemini APIs
- 02
Per-request routing via an on-box embedder and complexity classifier
- 03
Cache-aware switching that only routes down when savings beat cache rebuild cost
- 04
Escalation back to a frontier model when a cheaper model stalls or loops
- 05
`npx @weave-os/router` configures Claude Code, Codex, opencode or pi
Freemium
The Weave Router repository is licensed under Apache 2.0 and can be self-hosted with your own provider keys; the hosted router bills a unified usage-based credit balance, priced for solo developers and startups at 5% of routed costs.
Best for
Developers and teams running heavy coding-agent workloads who want to cut model spend without changing tools.
Not ideal for
Users who always want a single fixed model, or who cannot route agent traffic through a proxy.
A benchmark-backed router that meaningfully lowers coding-agent costs without changing the agent you use.
Weave Router 2.0 launched on September 9, 2026 with a classifier trained on 10x more sessions, cache-aware routing, escalation and multi-subscription routing.
As of
Is Weave Router free?+
Weave Router is Freemium. The Weave Router repository is licensed under Apache 2.0 and can be self-hosted with your own provider keys; the hosted router bills a unified usage-based credit balance, priced for solo developers and startups at 5% of routed costs. Check the official site for current plans.
Is Weave Router open source?+
Weave Router is not listed as open source on ai.dosa.dev - it is Freemium.
How much does Weave Router cost?+
The Weave Router repository is licensed under Apache 2.0 and can be self-hosted with your own provider keys; the hosted router bills a unified usage-based credit balance, priced for solo developers and startups at 5% of routed costs. Pricing changes often - verify on the official site.
Who is Weave Router best for?+
Developers and teams running heavy coding-agent workloads who want to cut model spend without changing tools.
Who is Weave Router not ideal for?+
Users who always want a single fixed model, or who cannot route agent traffic through a proxy.
What are the best Weave Router alternatives?+
The closest Weave Router alternatives on ai.dosa.dev are Pieces for Developers, agenttrace, Vibe Kanban - all listed under Developer Productivity & Workflow.
Who makes Weave Router?+
Weave Router is developed by Weave. It is listed in the Developer Productivity & Workflow category on ai.dosa.dev.
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