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Free preview · ATLAS Code (atlas-code-1-preview)

A coding model that won’t surprise your bill.

The ATLAS Code preview is live behind an OpenAI-compatible /v1 API. We’re fine-tuning our own version, and it ships under the same name once it passes our tests. Point Cursor, Cline, Aider, Codex, or the OpenAI SDK at one base URL. Plans are capped, and there’s no training on your code.

Works with Cursor · Cline · Aider · Codex · OpenAI SDK

python · openai SDK

from openai import OpenAI

client = OpenAI(base_url="https://elderai.cloud/v1", api_key="YOUR_ELDERAI_KEY")
r = client.chat.completions.create(
    model="atlas-code-1-preview",
    messages=[{"role": "user", "content": "Write a pytest for parse_date()"}],
)
print(r.choices[0].message.content)

Why ATLAS Code

Your coding agent, on a model you can leave running.

ElderAI is an API-first developer platform. We sell access to ATLAS Code, which we host and are fine-tuning ourselves, with plan pricing you can plan around.

Capped plans, predictable bills

Pick a plan and that is the most you pay. When credits run out, requests stop. There are no overage charges.

Private by default

We don’t use your prompts, code, or completions to train or fine-tune any model.

Our model, our stack

We host and serve ATLAS Code ourselves, and we’re fine-tuning our own version of it. Your requests aren’t passed to a third-party model API.

Made for agents

Coding agents resend large contexts every turn. Repeated input is billed at a lower cached rate, so long sessions stay affordable.

Quickstart

One base URL change.

If your tool accepts an OpenAI-compatible base URL, it can use ATLAS Code. Create a key in your account, export it as ATLAS_API_KEY, and send a request.

Base URL: https://elderai.cloud/v1
Model: atlas-code-1-preview
Auth: Authorization: Bearer <key>

Editor setup guides

curl

curl https://elderai.cloud/v1/chat/completions \
  -H "Authorization: Bearer $ATLAS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "atlas-code-1-preview",
    "messages": [{"role": "user", "content": "Write a pytest for parse_date()"}]
  }'

Straight answers

What ATLAS Code is for, and what it isn’t yet.

ATLAS Code is a compact preview model. Our fine-tuned version is still in testing, and it ships under the same name once it passes our tests. We’d rather tell you where it fits up front.

Good for

Edits, refactors, and boilerplate
Writing and fixing tests
Explaining unfamiliar code
Tool calls inside agent loops

Not a replacement for the largest models (yet)

Hard, multi-file architecture changes
Long-horizon reasoning across a large codebase

ATLAS Playground

Try a prompt before you wire it in.

The lightweight ATLAS Playground lives in your account. Send a prompt, see the response, and take the request into your own code. It uses the same credit balance as the API.

ATLAS Code is open to try.

Create an account and verify your email: ATLAS Code unlocks right away with a free 7-day trial (1,000 credits, no card), in the Playground and the API. Paid plans aren’t on sale yet. You can see how capped pricing will work on the pricing page.