# Tutorial

- [Glossary](/omnitool/tutorial/glossary.md)
- [UI Overview](/omnitool/tutorial/ui-overview.md)
- [Adding API Keys](/omnitool/tutorial/adding-api-keys.md)
- [Blocks](/omnitool/tutorial/blocks.md)
- [Omnitool](/omnitool/tutorial/blocks/omnitool.md)
- [OpenAI](/omnitool/tutorial/blocks/openai.md): We provides a suite of blocks for OpenAI powerful models, including GPT3/4, GPT4-Vision, Text Embeddings, DALL·E 2/3, TTS: Text-to-Speech, and Whisper: Speech-to-Text etc.
- [Replicate](/omnitool/tutorial/blocks/replicate.md)
- [HuggingFace](/omnitool/tutorial/blocks/huggingface.md)
- [ElevenLabs](/omnitool/tutorial/blocks/elevenlabs.md)
- [OpenRouter](/omnitool/tutorial/blocks/openrouter.md)
- [Sharp Image Processing](/omnitool/tutorial/blocks/sharp-image-processing.md)