
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.
ChatOne: Enables simultaneous querying of multiple frontier language models for direct side-by-side response comparison. ChatOne records 5,257 monthly visits with +70.6% month-over-month growth and Freemium, Paid pricing. Ithy records 174,787 monthly visits with -9.2% growth and Free pricing.

Ask ChatGPT, Claude, Gemini and more at once — in a single chat
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chatone.io | ithy.com |
| Pricing Model | Freemium, Paid | Free |
| Monthly Visits | 5.26K (5,257) | 174.79K (174,787) |
| MoM Traffic Delta | +2.18K (+70.6%) | -17.76K (-9.2%) |
| Primary Market & Share | 🇱🇺 Luxembourg (52.3%) | 🇺🇸 United States (33.1%) |
| Direct Visits / mo | 2.12K | 64.07K |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Website |

Ask ChatGPT, Claude, Gemini and more at once — in a single chat
Send a single prompt to several models at once and read the replies in parallel, which makes model comparison fast and concrete.
Access OpenAI GPT-4o and GPT-5.x variants, Claude family models, Gemini, Grok 3 / Grok 4.1 Fast and Kimi K2.5 from one account.
Choose exactly which models participate in a given question, so you can run a cheap two-model check or a wide ten-model sweep.
Start on the free credit plan, then move to discounted credit packs or unlimited-query subscriptions as your usage grows.

Deep research answers that combine ChatGPT, Gemini, Claude and more
Independent AI researchers tackle your question separately, then one detailed, sourced article combines their findings.
Get one focused answer with ranked web sources for questions you want to explore right away.
Read each model's full response side by side with the combined answer so you can see where they agree and differ.
Answers can include pictures, useful diagrams, and relevant videos that make complex ideas easier to grasp.

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.

Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
Google's multimodal AI assistant powered by Gemini 4 Carbon (Gemini Carbon 4), Gemini 4 Argon, and Gemini 3.8 Flash with a 1M-token context window and Workspace integration.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Offers superior real-time web search and citation verification, but lacks Ithy's multi-model side-by-side view.
Offers superior real-time web search and citation verification, but lacks Ithy's multi-model side-by-side view.

SpecialistMoonshot AI's long-context assistant for research, coding, and agentic work
SpecialistMoonshot AI's long-context assistant for research, coding, and agentic work

SpecialistProvides comprehensive agentic search and research report generation, though with a broader consumer feature set.
SpecialistProvides comprehensive agentic search and research report generation, though with a broader consumer feature set.

One workspace for Claude, GPT, Gemini, Grok and more
One workspace for Claude, GPT, Gemini, Grok and more

SpecialistSpecializes in searching peer-reviewed scientific literature to deliver evidence-based answers with academic citations.
SpecialistSpecializes in searching peer-reviewed scientific literature to deliver evidence-based answers with academic citations.

Chat with 30+ leading AI models in one clean, fast workspace
Chat with 30+ leading AI models in one clean, fast workspace
SpecialistAutomates academic literature search and evidence extraction specifically for research papers and systematic reviews.
SpecialistAutomates academic literature search and evidence extraction specifically for research papers and systematic reviews.

One AI super app for chat, images, video and everyday document tasks
One AI super app for chat, images, video and everyday document tasks
One subscription, many AI models — chat, search, analyze files and links
One subscription, many AI models — chat, search, analyze files and links