Geocentric Arc

Arc is a small, experimental English language model from Geocentric, trained from scratch. It is built for co-writing: exploring phrasing, drafting loose story material and finding fragments to develop in your own voice.

It has 120.8 million parameters, so it runs fast on almost any machine, offline, with nothing sent to anyone.

ollama run geocentricai/arc

At a glance

Good for

• Brainstorming phrasing and story ideas
• Short drafts you plan to revise
• Experimenting with and studying a small model

Not good for

Arc is experimental. It invents facts, gets arithmetic wrong, and often ignores requested length, format or premise. It can fall into repetition on open-ended prompts. Do not rely on it for facts, calculations, code you will run unreviewed, or anything safety-critical.

In our diagnostic suite of 24 prompts it passed 1, partially passed 4 and failed 19. Every response, including the failures, is published unedited on the model card.

Prompt format

Arc was trained on a simple chat format, which the Ollama build applies for you:

<|user|>
Your message<|eot|>
<|assistant|>

More

• Model card and full evaluation: https://geocentricai.com/models/arc/
• Weights: https://huggingface.co/GeocentricAI/Geocentric-Arc-1
• Training data: https://geocentricai.com/legal/training-data/
• Contact: contact@geocentricai.com