> For the complete documentation index, see [llms.txt](https://docs.nebulablock.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nebulablock.com/glossary.md).

# Glossary

**Inference API**\
OpenAI-compatible API for running generative AI inference (text, vision, image, embeddings) at <https://inference.nebulablock.com/v1>.

**GPU Instances**\
Virtual machines equipped with GPUs for compute-intensive tasks such as machine learning and AI workloads.

**Object Storage**\
A scalable storage solution for storing and retrieving large amounts of unstructured data, such as datasets and model outputs.

**SSH Keys**\
Cryptographic keys used to securely access and manage instances via SSH (Secure Shell).

**API Key**\
A unique identifier used to authenticate requests to the API, ensuring secure access to resources.

**Tier**\
Different levels of service or pricing plans available to users, often based on resource limits or features.

**Referral**\
A program that rewards users for inviting others to use the platform.