
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.
Search AI tools, categories, and leaderboards
R.test records 7,352 monthly visits with -47.9% month-over-month growth and Freemium pricing. WorkBuddy records 2,341,262 monthly visits with +43.9% growth and Freemium pricing.
AI-powered diagnostic practice tests for SAT®, ACT®, PSAT/NMSQT® and AP® — scored in about 40 minutes
An AI work partner that turns a sentence into finished office deliverables
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | rtest.ai | workbuddy.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 7.35K (7,352) | 2.34M (2,341,262) |
| MoM Traffic Delta | -6.76K (-47.9%) | +713.8K (+43.9%) |
| Primary Market & Share | 🇺🇸 United States (91.8%) | 🇨🇳 China (54.3%) |
| Direct Visits / mo | 2.39K | 1.23M |
| User Rating | 4.3 | 4.7 |
| Supported Platforms | Website | Website |
AI-powered diagnostic practice tests for SAT®, ACT®, PSAT/NMSQT® and AP® — scored in about 40 minutes
Answer a reduced, model-selected set of questions and receive a predicted score in around 40 minutes, with an option to take a full-length version when preferred.
Goes beyond a raw score to show a predicted versus target score gap and the top three areas for improvement.
Machine-learning models estimate mastery per topic and project performance, with the platform reporting that most users found predictions aligned with their real exam results.
Section timers, a question navigator, calculator and on-screen reference tools recreate the digital testing interface.

An AI work partner that turns a sentence into finished office deliverables
Describe a task in one sentence; WorkBuddy plans the workflow, selects the tools it needs, creates the files and keeps the process and results available for review.
The agent builds a research plan, cross-checks information across sources and delivers a structured report with actionable recommendations, which the vendor says can land within ten minutes.
Produces reports, presentations, spreadsheets and documents, with Markdown, Word and PowerPoint export for downstream editing.
Brings chat, documents, email, meetings and knowledge bases together, with listed integrations for Slack, Telegram, Notion, Google Drive, GitHub, Jira and Linear.

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.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.

xAI's real-time AI assistant and coding workspace powered by Grok 4.7 with live X integration.
xAI's real-time AI assistant and coding workspace powered by Grok 4.7 with live X integration.
AI-powered web hosting platform combining prompt-based website building with one-click managed OpenClaw agent deployments.
AI-powered web hosting platform combining prompt-based website building with one-click managed OpenClaw agent deployments.

Your personal AI agent from Meta that actually gets things done
Meta's free AI assistant for answers, images and everyday tasks

No-code multichannel AI agents that turn static forms into interactive voice, chat, and support workflows.
No-code multichannel AI agents that turn static forms into interactive voice, chat, and support workflows.

Share and access study materials worldwide — with AI study tools built in
Share and access study materials worldwide — with AI study tools built in

Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.

Hands-free AI voice chat for conversation, language practice and games
Hands-free AI voice chat for conversation, language practice and games