Quartzite is a single workspace for chatting with multiple leading language models and refining advanced prompts in one place. It’s designed for people who run longer, multi-step sessions and want a clearer way to iterate on prompts across models.
Multi-model chat in one window
Quartzite lets you work with a wide range of models without jumping between separate sites, including:
- Opus 4.5
- Gemini 3
- GPT‑5.1
- o3‑pro
- OpenRouter
- DeepSeek
- Perplexity AI
- Llama 3
- Mistral
- Other supported models
Built for complex sessions and research
Conversations are organized as structured sessions, which helps when you need to:
- Compare answers across models
- Refine a question step by step
- Keep context for long research or learning workflows
Markdown prompt editor with version history
A core feature is the advanced prompt editor with Markdown support. You can:
- Build complex prompts from reusable blocks
- Save drafts and return to them later
- Track changes with version history to see how wording affects model outputs
