Affordable AI Solutions

TREX StableAI is an always-on API — as long as you keep your subscription active, it will always be available. We use fixed billing plans: just subscribe to a plan and get unlimited access, perfect for everyday learning, chatting, and more.

* Unlimited usage is subject to fair-use policy and personal use only.

OpenAI-compatibleFixed monthly priceAuto model switching

Why TREX StableAI

We handle model availability, failover, and infrastructure so you can focus on your application.

Always online

Multiple AI model providers back each other up. When one model goes down, the system automatically switches to another — your service never stops.

Fixed plans, unlimited use

Pick a monthly plan that suits you and call the API as much as you need within fair-use limits. No surprise usage-based bills.

Secure and reliable

Built on the Cloudflare global network with encrypted transit. You manage your own API keys and can rotate or revoke them anytime.

OpenAI-compatible

Uses the exact same API format as OpenAI. If you already use the OpenAI SDK, just change two lines of code to get started.

Get started in 3 steps

Create an account and pick a plan
Generate your API key in the Dashboard
Point your API calls to api.trexapi.com/v1 and start building

Code example

If you already use the OpenAI SDK, just replace apiKey and baseURL.

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: "your-trex-api-key",
  baseURL: "https://api.trexapi.com/v1",
});

const response = await client.chat.completions.create({
  model: "smart-auto",
  messages: [{ role: "user", content: "Hello" }],
});

Perfect for

💬 Daily chat

Chat with AI, ask questions, brainstorm, translate — without worrying about running out of quota.

📚 Learning assistant

Use AI to understand complex topics, practice coding, or prepare for exams. Fixed cost, no matter how much you use.

🛠️ Personal projects

Add AI to your personal apps, bots, or automation scripts. One API key handles everything.

Ready to get started?

Create an account, choose a plan, and start using the AI API within minutes.