See it in action
Harness the intelligence of multiple AI models at once.
More than chat
Skills, web search, file generation, file uploads — the full toolkit for getting real work done with AI.
Find the best answer in seconds
Responses stream in parallel, side-by-side. No tab-switching, no copy-pasting between apps.
Trust your results
When three models agree, you know the answer is solid. When they disagree, you know exactly where to dig deeper.
Tap into expert skills
Apply domain-expert Skills — SEO writer, analyst, document author — and compare how each model interprets them.
Put models to work
Generate documents, spreadsheets, and code as downloadable files. Real work output, not just chat.
Stay current with real-time information
Models search the web for the latest data — compare how different AIs find and synthesize what they find.
Get multiple takes on your documents
Upload PDFs and images. See how each model interprets, summarizes, and analyzes your files differently.
Who is Multichat for?
Professionals who use AI daily and want quality, not AI slop.
Content Creators
Get five drafts from one brief. Compare tone, structure, and phrasing — then pick the best parts of each.
Marketers
Test creative angles across models, optimize SEO content, and research trending topics — all in one conversation.
Analysts
Cross-validate findings, challenge assumptions, and get multiple interpretations of the same data before making recommendations.
Consultants & Agencies
Deliver higher-quality work to clients by comparing approaches and backing recommendations with multiple AI perspectives.
50+ LLMs supported
GPT-6.1 Sol, Claude Sonnet 5.5, Grok 4.7, and leading open-source models
Gemini 3.8 FlashGemini 3.8 FlashGemini 3.1 ProGemini 3.1 ProGemini 3.5 FlashGemini 3.5 FlashGemini 3.5 Flash LiteGemini 3.5 Flash LiteGemini 3 FlashGemini 3 FlashGemini 2.5 ProGemini 2.5 Pro
GPT-6.1 SolGPT-6.1 SolGPT-6 AstraGPT-6 AstraGPT-6 LunaGPT-6 LunaGPT-5.6 SolGPT-5.6 SolGPT-5.6 TerraGPT-5.6 TerraGPT-5.6 LunaGPT-5.6 LunaGPT-5.5GPT-5.5GPT-5.4 MiniGPT-5.4 MiniGPT-5.4 NanoGPT-5.4 NanoGPT-5GPT-5GPT-5 MiniGPT-5 MiniGPT-4oGPT-4oo3o3GPT OpenSource 120BGPT OpenSource 120BGPT OpenSource 20BGPT OpenSource 20B
Muse Spark 1.3Muse Spark 1.3
Grok 4.7Grok 4.7Grok 4.6Grok 4.6Grok 4.5Grok 4.5Grok 4.3Grok 4.3
Claude Fable 5.1Claude Fable 5.1Claude 5.5 OpusClaude 5.5 OpusClaude 5.5 SonnetClaude 5.5 SonnetClaude 5.5 HaikuClaude 5.5 HaikuClaude Fable 5Claude Fable 5Claude 5 OpusClaude 5 OpusClaude 4.8 OpusClaude 4.8 OpusClaude 5 SonnetClaude 5 SonnetClaude 4.6 SonnetClaude 4.6 SonnetClaude 4.5 HaikuClaude 4.5 Haiku
DeepSeek V4.1 FlashDeepSeek V4.1 FlashDeepSeek V4 ProDeepSeek V4 Pro
Mistral Medium 3.5Mistral Medium 3.5Mistral Small 4Mistral Small 4
Kimi K3Kimi K3Kimi K2.6Kimi K2.6
Qwen3.8 MaxQwen3.8 MaxQwen3.8 FlashQwen3.8 FlashQwen3.7 MaxQwen3.7 MaxQwen3.7 PlusQwen3.7 PlusQwen3.6 FlashQwen3.6 Flash
GLM 5.3GLM 5.3GLM 5.3 FlashGLM 5.3 FlashGLM 5.2GLM 5.2GLM 5.1GLM 5.1
Cogito v2.1 671BCogito v2.1 671B
MiniMax M3MiniMax M3MiniMax M2.5MiniMax M2.5Frequently 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?
Choose from 50+ models, including GPT-6.1 Sol, GPT-6 Astra, GPT-6 Luna, Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5, Claude Haiku 5.5, Gemini 3.8 Flash, and Grok 4.7. We also offer DeepSeek, Mistral, Kimi, Qwen, and more. Model access depends on your plan, and new releases 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?
Plans start at $3/mo with Almost Free, which includes 20+ capable models such as GPT-6 Luna and Claude Haiku 5.5, plus powerful open-source options. You also get expert Skills like Human Voice, Resume Reviewer, and SEO Writer. Plus and Max unlock additional premium models and more usage.
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. Premium models like GPT-6 Astra and Claude Fable 5.1 consume more usage per message, especially in long conversations where the full history is resent each turn. GPT-6 Luna, Claude Haiku 5.5, and many open-source models cost much less and work well for routine tasks. To stretch your usage further, start a new chat instead of continuing a long one, and save premium models for tasks that need them. If it ever feels tight, email us at help@prompthq.run.
Ready to talk with every AI at once?
Hard to go back to a single AI after this.