Ask the right questions before you pick a model.
Describe the problem. JEV returns the questions that settle it. The answers decide which model does the work, instead of a guess or a default.
Try JEV Frame
Fill in what you know. Leave a box empty if it doesn't apply.
Questions to answer
Raw response
How a request gets routed
Three steps, in order. The first is live now.
Frame the problem
JEV takes the problem, the reaction to it and the proposed solution.
Ask the questions
JEV outputs the questions that settle the decision, so the choice rests on answers.
Route the work
The answers select the model that handles the request, through Hermes on ZYNTHIO's own servers.
What routing looks like
Example rules showing how answers map to model classes. Illustrative, not a live policy: you set the real rules.
| If the answers say | Route to | Why |
|---|---|---|
| Short, routine, reversible | Small fast model | Low cost and low latency matter most. |
| Multi-step, high stakes, needs reasoning | Large reasoning model | Accuracy outweighs cost. |
| Involves images or documents | Multimodal model | The input decides the model. |
| Private or regulated data | Local model on your own server | Data does not leave your infrastructure. |
Private routing runs on your own VDS with open-weight models served locally.
Call it from code
The page above uses the same endpoint. The example below is generated from the form's field names.
What is live
No roadmap theatre. This is the current state.
Live: JEV Frame
Submit a problem and get the questions back, on this page or at jevsdev.com/frame.
In progress: model routing
Connecting JEV's answers to model selection through Hermes. Not live yet.
Questions
What does AI Model Router do?
It takes a problem, returns the questions that settle the decision, and uses the answers to choose which AI model handles the work.
Is model routing live?
JEV Frame, the question step, is live. Connecting its answers to model selection through Hermes is in progress.
Does it write answers to my problem?
No. JEV Frame returns questions. The model it routes to does the work.
Where does it run?
On ZYNTHIO's own servers. The API host is jevsdev.com and the public router site is calibratedrouting.com.