
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.
Chatbot App records 2,170,883 monthly visits with -9.7% 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 | chat.chatbotapp.ai | closechat.org |
| Pricing Model | Freemium | Free (bring your own API key) |
| Monthly Visits | 2.17M (2,170,883) | 281 (281) |
| MoM Traffic Delta | -234.21K (-9.7%) | -1.75K (-86.2%) |
| Primary Market & Share | 🇺🇸 United States (26.3%) | 🇺🇸 United States (100%) |
| Direct Visits / mo | 498.19K | 112 |
| User Rating | 3.9 | 4.2 |
| Supported Platforms | Website | Website |

Chat with 30+ leading AI models in one clean, fast workspace
Move between ChatGPT, Claude, Gemini, Llama and other leading models mid-conversation without leaving the page.
Send one prompt to several models at once and compare their answers to pick the best output.
Turn text prompts into images inside the same workspace, alongside your chat threads.
Draft, rewrite, summarize and refine text with your chosen model in a single continuous conversation.
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.

Deep integration with Google ecosystem and massive context window, but restricted solely to Google's proprietary model family.
Deep integration with Google ecosystem and massive context window, but restricted solely to Google's proprietary model family.
Superior long-form writing, coding artifacts, and analytical depth, but lacks access to alternative provider models in one UI.
Superior long-form writing, coding artifacts, and analytical depth, but lacks access to alternative provider models in one UI.
Free / Open-sourceHighly cost-effective reasoning and coding performance, but provides a narrower ecosystem compared to comprehensive multi-model platforms.
Free / Open-sourceHighly cost-effective reasoning and coding performance, but provides a narrower ecosystem compared to comprehensive multi-model platforms.

Real-time access to live social media data, but lacks multi-model aggregation and customization features found in dedicated chat aggregators.
Real-time access to live social media data, but lacks multi-model aggregation and customization features found in dedicated chat aggregators.
SpecialistExcels at real-time web search with verified citations, but less optimized for open-ended creative writing or multi-model comparisons.
SpecialistExcels at real-time web search with verified citations, but less optimized for open-ended creative writing or multi-model comparisons.

SpecialistOutstanding handling of extremely long documents and deep research, but less versatile for general multi-vendor model comparison.
SpecialistOutstanding handling of extremely long documents and deep research, but less versatile for general multi-vendor model comparison.

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

Free / Open-sourceExtensible open-source interface for local and cloud models, but demands self-hosting maintenance rather than out-of-the-box cloud access.
Free / Open-sourceExtensible open-source interface for local and cloud models, but demands self-hosting maintenance rather than out-of-the-box cloud access.

Free / Open-sourceCollaborative open-source agent workspace, but focuses more on team integrations and modular plugins than simple multi-model chatting.