
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
ChatHub records 322,618 monthly visits with -13.9% month-over-month growth and Freemium pricing. CloseChat records 281 monthly visits with -86.2% growth and Free (bring your own API key) pricing.
A multi-platform AI chat client that connects to any model you choose
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | chathub.gg | closechat.org |
| Pricing Model | Freemium | Free (bring your own API key) |
| Monthly Visits | 322.62K (322,618) | 281 (281) |
| MoM Traffic Delta | -52.07K (-13.9%) | -1.75K (-86.2%) |
| Primary Market & Share | 🇨🇳 China (19.6%) | 🇺🇸 United States (100%) |
| Direct Visits / mo | 188.75K | 112 |
| User Rating | 4.3 | 4.2 |
| Supported Platforms | Website | Website |

Compare GPT, Claude, and Gemini answers side by side in one chat
Send one prompt to several leading chatbots at once and compare answers in parallel to spot hallucinations and disagreements.
Access the latest commercial models plus open-weight options through a single plan instead of juggling separate subscriptions.
Attach PDFs, spreadsheets, and images for AI analysis, or pull in real-time information from the web when you need current facts.
Generate artwork, illustrations, and photos using popular image models without leaving the chat interface.
A multi-platform AI chat client that connects to any model you choose
Configure the AI providers or API keys you already use, and switch between them inside the client instead of committing to a single bundled service.
Native apps for Windows, macOS, Linux, iOS and Android keep your conversations and settings aligned across devices.
Drag in PDF, Word, Excel, PowerPoint, code and image files and let the model summarise, extract or analyse the content directly.
Edit the same image across multiple turns, automatically carrying over the previous version and merging several images while keeping subjects consistent.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

One app to chat with GPT, Claude, Gemini and hundreds of other AI models

All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research

Chat with 30+ leading AI models in one clean, fast workspace
Chat with 30+ leading AI models in one clean, fast workspace
SpecialistFocuses heavily on browser-based AI summarization and research workflows, while supporting multiple underlying LLMs.
SpecialistFocuses heavily on browser-based AI summarization and research workflows, while supporting multiple underlying LLMs.
One privacy-first AI client for GPT, Claude, Gemini and more
One privacy-first AI client for GPT, Claude, Gemini and more
The best frontend for AI.

Free / Open-sourceEvery AI conversation, one open-source workspace
SpecialistAggregates diverse generative models including image, video, and RAG pipelines beyond standard text chat clients.
SpecialistAggregates diverse generative models including image, video, and RAG pipelines beyond standard text chat clients.

Free / Open-sourceAn open-source desktop client connecting multiple cloud and local models, though it lacks ChatHub's browser extension form factor.
Free / Open-sourceAn open-source desktop client connecting multiple cloud and local models, though it lacks ChatHub's browser extension form factor.
One AI assistant across every browser, app and device — no API keys needed
One AI assistant across every browser, app and device — no API keys needed