514 - Managed infra, agents and data to simulate coding agents as users
Install the CLI and run your first AX experiment
In plain words
Fiveonefour is an experimentation platform for testing and improving how coding agents interact with products. It provides managed infrastructure, agents, and data to simulate agent behavior as users. The platform offers a CLI tool for running experiments locally using Docker and personal LLM provider keys, with optional cloud hosting available through account creation. It's designed for developers building and evaluating agent-based applications.
written from the facts on this page · September 2026
From the sources
Fiveonefour is an experimentation platform for understanding and improving a product's agent experience (AX). We recommend your proceed with your coding agent of choice, using the prompts provided below. But you can always run the CLI by hand if you prefer. Fiveonefour is currently available in Research Preview, and you can use the Fiveonefour CLI without signing up for an account - just skip the ax auth commands. You'll need to run your experiments locally, which requires Docker and providing your own LLM provider keys. If you do create an account, you'll have access to AX Cloud , with managed infrastructure, agents, and data to enable your experimentation quickly, easily, and at scale.…from docs.514.ax
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