OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
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Compare 12 alternatives to Planable. The directory ranks these tools by monthly web traffic and shows their pricing, growth, and primary markets.
| chatgpt.com |
| 5.92B |
| 282.16M (+5%) |
| Freemium |
| United States |
| 4.3 |
| Compare |
| 2 | DeepL | deepl.com | 96.77M | -2.25M (-2.3%) | Freemium | Germany | 5 | Compare |
| 3 | Grammarly | grammarly.com | 59.78M | 10.5M (+21.3%) | Freemium | United States | 5 | Compare |
| 4 | AI Summarizer - 1 | wps.com | 37.71M | 1.74M (+4.8%) | Flexible | Indonesia | 5 | Compare |
| 5 | Quillbot Paraphraser | quillbot.com | 35.81M | 3.85M (+12%) | Freemium | United States | 4.2 | Compare |
| 6 | Gamma AI | gamma.app | 21.1M | 1.29M (+6.5%) | Free | India | 5 | Compare |
| 7 | Notion AI | notion.so | 13.46M | 1.59M (+13.4%) | Freemium, Paid, Contact for Pricing | United States | 4.5 | Compare |
| 8 | Tencent Yuanbao | yuanbao.tencent.com | 10.82M | -2.28M (-17.4%) | Free | China | 5 | Compare |
| 9 | Z.ai | chat.z.ai | 10.02M | 45K (+0.5%) | Free | China | 5 | Compare |
| 10 | Scribbr | scribbr.com | 6.57M | 1.13M (+20.8%) | Freemium | United States | 5 | Compare |
| 11 | Superhuman | superhuman.com | 6.04M | 662.7K (+12.3%) | Paid | United States | 5 | Compare |
| 12 | LanguageTool | languagetool.org | 5.96M | -70.25K (-1.2%) | Freemium | Brazil | 5 | Compare |
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
AI Summarizer: Shorten Text Into Key Points | WPS
AI-powered writing tool for paraphrasing, grammar checking, and more to improve writing
AI-powered platform for creating presentations, webpages, and documents with minimal design effort
Notion AI: Where teams and agents Think together
All-in-one AI assistant for writing, search, and image tasks
Z.ai - Advanced AI Chatbot & Agent powered by GLM-5.3-Flash
Scribbr offers proofreading, plagiarism checking, citation generation, and academic resources for students
Superhuman: Docs, Mail, and AI That Work Everywhere
LanguageTool: More than a Grammar Checker Free Grammar Checker