Weave Router vs Ramp Router: which LLM router is right for you?
Both Weave Router and Ramp Router send each request to a model that can do the job for less. The difference is where they live. Weave Router works inside your coding tools, Codex, Claude Code, and Cursor, optimizing quality-per-token for engineering work. Ramp Router is an API endpoint for routing your application's AI features. Here's the full breakdown.
The short version
Weave Router routes each prompt to the best quality-per-token model right inside Codex, Claude Code, and Cursor, doubling your token runway. Ramp Router is a single API endpoint that sends your application's AI requests to the lowest-cost approved model that clears your quality bar.
Teams typically choose Weave Router when they want their engineers' coding agents to go further on the same token budget, with a 5-minute setup and source code available. Teams typically choose Ramp Router when they're routing production application traffic through one managed endpoint.
At a glance
How Weave Router and Ramp Router compare
Compare
Weave Router
Ramp Router (ramp.com/router)
Core approach
Routes every prompt to the best quality-per-token model
Lowest-cost approved model that clears a quality bar
Where it runs
Inside Codex, Claude Code, and Cursor, no code changes
One API endpoint your application calls
Built for
Engineering teams using AI coding tools and agents
Product teams shipping AI features in their app
Time to value
5-minute setup; free to start
API integration into your application
Source availability
Source code available
Proprietary managed service
Model coverage
Frontier and efficient models across major providers
Leading closed and open models via one endpoint
Savings story
Roughly doubles how far a token budget goes on coding work
Cut Ramp's own LLM costs by about 30% across 100+ use cases
Getting started
Self-serve at router.workweave.ai, free to start
Via ramp.com/router
What is Weave Router?
Weave Router is the prompt router that doubles your token runway. It routes each prompt to the best quality-per-token model, right inside the tools your engineers already use: Codex, Claude Code, and Cursor. Easy prompts stop paying frontier prices and hard prompts still get frontier models, so the same token budget ships roughly twice as much work. Setup takes about five minutes, the source code is available, and it's free to get started. Weave Router is built by Weave, the engineering intelligence platform trusted by 500+ organizations, from seed-stage startups to Fortune 100 companies.
What is Ramp Router?
Ramp Router (ramp.com/router) is an LLM router from Ramp, the finance automation company. It began as the internal router powering Ramp's own AI products across 100+ use cases, where it cut LLM costs by about 30%. It gives your application one endpoint for leading closed and open models, picks the lowest-cost approved model that clears your quality and latency bar, and handles fallbacks and provider updates for you. It's a credible choice for routing production application traffic. The question is whether an application endpoint helps where your team actually burns tokens: inside coding tools and agents.
The key difference
Routing your app's traffic vs. routing your engineers' prompts
Ramp Router's approach
Ramp Router sits behind your application. You point your product's AI features at one endpoint, set the quality bar, and it keeps every request on the cheapest approved model that clears it. That's valuable if you're shipping AI features, but it does nothing for the tokens your engineers burn in Codex, Claude Code, and Cursor all day.
Weave Router's approach
Weave Router sits inside the coding tools themselves. Every prompt an engineer or agent sends is scored and routed to the best quality-per-token model, with zero code changes and no new endpoint to operate. Your existing token budget simply goes about twice as far.
If your biggest LLM bill is your engineering team's coding agents, route the prompts where they happen: in the tools.
Why Weave Router
Why teams choose Weave Router over Ramp Router
Built for coding work
Weave Router is tuned on engineering work: code generation, refactors, reviews, and agent runs. Routing decisions reflect what actually makes a coding prompt hard.
Zero integration work
No endpoint swap, no SDK, no code changes. Weave Router drops into Codex, Claude Code, and Cursor in about five minutes.
Quality-per-token, not cheapest-above-bar
Rather than picking the lowest-cost model above a fixed bar, Weave Router optimizes the quality you get per token spent on every single prompt.
Doubles your token runway
Easy prompts stop paying frontier prices. Teams take the same token budget roughly twice as far on real coding workloads.
Source code available
Inspect exactly how routing decisions are made. No black box between your engineers and their models.
Free to start, no sales call
Sign up at router.workweave.ai and route your first prompts today. Book a demo only if you want one.
When Ramp Router might be the better fit
We'd rather you pick the right tool than just pick us. If you're routing your application's production AI traffic, support bots, document processing, or in-product features, and you want one managed endpoint with fallbacks and provider updates handled for you, Ramp Router is built for exactly that, and Ramp's own products are proof it works at scale. But the tokens your engineers burn in coding tools never touch your application's endpoint. If that's the spend you're trying to fix, that's what Weave Router was built for. Many teams run both.
Frequently asked questions
What's the main difference between Weave Router and Ramp Router?
Weave Router routes prompts inside coding tools (Codex, Claude Code, Cursor) to the best quality-per-token model. Ramp Router is an API endpoint that routes your application's AI requests to the lowest-cost approved model that clears your quality bar. One optimizes engineering spend; the other optimizes product spend.
Do I need to change my code to use Weave Router?
No. Weave Router works inside Codex, Claude Code, and Cursor directly. Setup takes about five minutes and there's no endpoint to swap or SDK to integrate.
Can I use Weave Router and Ramp Router together?
Yes. They don't overlap: Ramp Router can route your application's production traffic while Weave Router routes your engineers' coding prompts.
How much can Weave Router save my team?
Weave Router routes each prompt to the best quality-per-token model, which roughly doubles how far a token budget goes on typical engineering workloads. Try the savings calculator on the Router product page for an estimate based on your usage.
Is Weave Router a black box?
No. Weave Router's source code is available, so you can inspect exactly how routing decisions are made before trusting it with your team's prompts.
Source code available. Start taking your token budget twice as far.
Get started in 5 minutes or book a demo with our team.
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