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How to compare AI model replies and latency side by side with Route VSCODE

Send one prompt to several models in the dashboard and measure response latency.

Credentials. Each provider call uses the API Key configured in 9Router, so only run comparisons on accounts you are allowed to use.

Who it is forA developer or team lead choosing which AI model to use for a coding task and needing evidence from their own prompts.

The problemPicking a model from marketing claims or memory is slow and gives no comparison on real prompts and response time.

The outcomeYou see replies from different models next to each other with their latency, which helps choose a default model for Copilot Chat.

What you need first

  • Visual Studio Code with GitHub Copilot Chat
  • Node.js and npm, needed for `npm install -g 9router` and `npm start`
  • A 9Router account or local setup that gives you an API Key from the 9Router dashboard at http://localhost:20128/dashboard
  • Ports 20128, 20129 and 5500 free on your machine

Steps

  1. Start the gateway with 9router in one terminal.
  2. Start the dashboard with npm start in the repo folder.
  3. Open http://localhost:5500 in the browser and select two or more models in the dashboard. (inferred, check the README)
  4. Enter the same test prompt for every selected model and run the comparison. (inferred, check the README)
  5. Read the replies and latency values side by side and note the model that fits your task. (inferred, check the README)

Prompt for your agent

Using the repo yudaprasetya007/routeVSCODE, start the 9Router gateway and the dashboard with npm start, then run the Live Model Comparison with the prompt <test prompt> on the models <model list>. Report each model's reply length and measured latency, and verify that every selected model returned a response before giving a recommendation.

Caveat. The README lists the comparison feature but does not describe its controls, so the UI steps above are inferred and should be checked against the running dashboard.

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