Atla Selene
An 8B judge model: it scores another model answer against your criteria and writes a rationale. The judge itself makes mistakes and does not replace manual review on important tasks.
- Developer
- Atla, UK
- First release
- Jan 2025
- Latest release
- Jan 2025
- Sizes
- 8B
- License
- Commercial use with conditionsThe card states Apache 2.0; the model is fine-tuned from Llama 3.1 — check the base license terms
- Russian
- Not supported
- Running
- On your own serverNeeds a GPU
- Industries
- Software development, Customer support, Science and research, Marketing and content
What it does
- Scoring chatbot answers against your own criteria
- Comparing two versions of a prompt or model
- Filtering out weak answers before they reach a person
Where it is used
Hardware requirements
Versions
- Selene-1-Mini-Llama-3.1-8B
How to run it
I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems.
Frequently asked questions
Can Atla Selene be used in a commercial project?
With conditions. License: The card states Apache 2.0; the model is fine-tuned from Llama 3.1 — check the base license terms. Restrictions vary — region, company revenue, attribution requirements. Have a lawyer check the terms before a commercial launch.
What hardware does Atla Selene need?
At minimum: One GPU with 16–80 GB — mid-size versions. Without a GPU the model is not practical. You can calculate the exact VRAM for your model size and context in the hardware calculator.
Does Atla Selene support Russian?
No. The developer documentation lists the supported languages and Russian is not among them.
Where can I download Atla Selene and what does it cost?
The Atla Selene weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.
How I deploy it for clients
- SelectionI pick the model size for your task and hardware and test it on your examples.
- DeploymentI deploy it on your server or in a closed network and provide an API.
- Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
- IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.
Similar models
An open judge model: it scores other models' answers against your criteria and explains the score. A replacement for paid models in the reviewer role.
DetailsFact-checking and judgesFlow JudgeFlow AI · not disclosedCommercial use allowedA small judge model: it checks an answer against your instruction and gives a score with an explanation. Fits on a modest server. The judge itself makes mistakes and does not replace manual review.
DetailsFact-checking and judgesGLIDER (Patronus)Patronus AI · USANon-commercial onlyA small judge: it scores against your criteria and highlights which part of the answer led to that score. The license is non-commercial. The judge itself makes mistakes and does not replace manual review.
DetailsSource: huggingface.co/AtlaAI/Selene-1-Mini-Llama-3.1-8B. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.


