Axion Labs · open models

Meet Lumen.
Free AI with an account.

We build and host our own models. Create a free Axion account to chat with Lumen 1.2.5 in the browser, call it through an OpenAI-compatible API, or bring it into your terminal.

checking model status…

lumen-1.2.5 api.amplifiedsmp.org
POST /v1/chat/completions $0.125 included / week free account required OpenAI-compatible
Update Lumen is now on our own servers — responses dropped from ~220s to 2–3s. Read what changed.

The Axion model family

Built, safety-tested, and hosted by us. Use them in the browser or the API.

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Lumen 1.2.5

Our flagship. A fine-tuned Llama 3.1 8B with two-stage training — supervised fine-tuning followed by DPO safety alignment. Best for chat, questions, writing, and code explanations.

8B
parameters
73%
safety pass rate
Free
account required
model details →
migrating · back soon

Veil 1.1

Our first and fastest model — a fine-tuned Llama 3.1 3B for quick general chat.

3B
parameters
Free
account required
model details →

One curl away

The API speaks the OpenAI chat-completions format, so every SDK and tool that works with OpenAI works with Lumen — just change the base URL.

# free Axion account and API key required
$ curl https://api.amplifiedsmp.org/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AXION_API_KEY" \
  -d '{"model": "lumen", "messages": [{"role": "user", "content": "hello!"}]}'
$0.125 weekly included usage with a free account streaming supported keys & usage dashboard at axion/keys

Wherever you work

The same models, three doors in.

We publish our safety work

Every Lumen release ships with adversarial testing — and when a model fails, we take it down and say exactly why.

Start talking to Lumen

Create a free Axion account, then use Lumen in the browser, API, or terminal.

Create account & chat Get API key