Frequently asked questions
Have more questions? Email us at help@prompthq.run
What is Multichat?
Multichat lets you chat with many AI models simultaneously in side-by-side columns. Send one message, see how different models respond, and pick the best parts of each. It's like having your own council of experts. You can cross-validate answers and combine the strongest ideas.
What models do you support?
We support 50+ models across all major providers — Anthropic (Claude), OpenAI (ChatGPT), Google (Gemini), xAI (Grok), DeepSeek, Mistral, Kimi, Qwen, and more. New models are added regularly.
Why should I use PromptHQ over ChatGPT or Gemini?
ChatGPT and Gemini lock you into one provider. PromptHQ gives you all the top models in one place — premium and open source — so you can compare them side-by-side in Multichat and use Skills to get better results. You see which model actually works best instead of guessing.
Is it free?
At $3/mo it's almost free. You get access to 20+ smaller but capable models across all major providers, including some powerful open source models. And you get access to expert skills like Human Voice to make AI-generated content sound more real, a Resume Reviewer, an SEO expert, and many more.
What are Skills?
Skills are specialized AI capabilities that help models perform specific tasks better — like writing SEO content, drafting documents, reviewing resumes, doing competitive analysis and more. Simply select a skill before you send your question.
Is my information private?
Yes. We will not sell or distribute your data. You can share your data with people you choose through our collaboration features.
Do you train your LLM on my data?
No. We don't run our own LLM — we route your requests to the providers you choose (Anthropic, OpenAI, Google, etc.). Your data belongs entirely to you.
How much usage do I get?
It depends on which models you use. Frontier models like Claude Sonnet and GPT 5.4 are the most capable but consume more usage per message — especially in long conversations, where the full history is resent each turn. Open-source models like Kimi and Qwen are a fraction of the cost and excellent for everyday tasks, so a typical month mixes both. Your allowance is paced across the month so it lasts, and if it ever feels tight, email us at help@prompthq.run.