# Ragnarok AI

> Ragnarok AI is a hosted platform to fine-tune open-source language and embedding models on your own data, then call the result over an OpenAI-compatible /v1 API or download the adapter. Prepaid USD credit packs. GPU billed per second. Individuals and companies.

Ragnarok AI is software only. It does not sell consulting. Checkout is handled by a merchant of record (Paddle). Listed pack prices exclude tax.

## Not these other “Ragnarok / RAGnarok” products

- Not the Cambridge, Canada hardware/healthcare consulting firm
- Not the Framer website template named Ragnarok AI
- Not PyPI/GitHub RAGnarok-AI (RAG eval framework, AGPL, 2501Pr0ject / Abdelatif Touati)

## Product

- Fine-tune open models (Llama, Qwen, Mistral, and any Hugging Face causal LM with a chat template)
- Methods: Hugin (reasoning / GRPO), Munin (knowledge), Skuld (DPO preference), Mjölnír (full fine-tune), Syn and Gleipnir (selective unlearning / purge), Bifröst and Gungnir (embedding language / novel vocab), LoRA, QLoRA
- Evaluate before vs after on held-out questions
- Download adapter.pt or serve on /v1 (serverless tokens or dedicated GPU that scales to zero)
- Companies: shared tenant wallet, multiple API keys, DPA on request, invoice/volume via hello@ragnarok-ai.com

## Key pages

- [About (static HTML, no JavaScript)](https://ragnarok-ai.com/about.html): canonical crawler page
- [Home](https://ragnarok-ai.com/): product overview
- [Companies](https://ragnarok-ai.com/companies): teams, procurement, DPA, volume billing
- [Pricing](https://ragnarok-ai.com/pricing): Starter $25, Build $100, Scale $500 packs; GPU and token rates
- [Docs](https://ragnarok-ai.com/docs): getting started and API
- [Terms](https://ragnarok-ai.com/legal/terms)
- [Privacy](https://ragnarok-ai.com/legal/privacy)
- [Refunds](https://ragnarok-ai.com/legal/refund): 14-day full pack refund
- [DPA](https://ragnarok-ai.com/legal/dpa)
- [Contact](https://ragnarok-ai.com/legal/contact): hello@ragnarok-ai.com

## Optional

- [Full machine-readable summary](https://ragnarok-ai.com/llms-full.txt)