
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.
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Compare 12 alternatives to Katteb. The directory ranks these tools by monthly web traffic and shows their pricing, growth, and primary markets.
| 1 | ChatGPT | chatgpt.com | 6.05B | 127.43M (+2.2%) | Freemium | United States | 4.8 | Compare |
| 2 | DeepL | deepl.com | 95.11M | -1.66M (-1.7%) | Freemium | Germany | 4.7 | Compare |
| 3 | Grammarly | grammarly.com | 58.87M | -916.08K (-1.5%) | Freemium | United States | 4.4 | Compare |
| 4 | WPS AI Summarizer | wps.com | 51.35M | 13.64M (+36.2%) | Free | Indonesia | 4.3 | Compare |
| 5 | QuillBot Paraphraser | quillbot.com | 36.63M | 824.67K (+2.3%) | Freemium | United States | 4.5 | Compare |
| 6 | AI Grammar Check - Fix Writing | itunes.apple.com | 27.21M | -1.87M (-6.4%) | Freemium | United States | 3.8 | Compare |
| 7 | Gamma AI | gamma.app | 20.81M | -289.29K (-1.4%) | Freemium | India | 4.6 | Compare |
| 8 | Viinyx AI – Premium (Lifetime) | gumroad.com | 18.93M | 1.06M (+5.9%) | Freemium | United States | 3.8 | Compare |
| 9 | Notion AI | notion.so | 13.46M | 1.59M (+13.4%) | Freemium, Paid, Contact for Pricing | United States | 4.7 | Compare |
| 10 | Tencent Yuanbao | yuanbao.tencent.com | 9.32M | -1.5M (-13.9%) | Free | China | 4.5 | Compare |
| 11 | Z.ai | chat.z.ai | 9.18M | -842.53K (-8.4%) | Free | United States | 4.4 | Compare |
| 12 | Scribbr | scribbr.com | 7.53M | 957.01K (+14.6%) | Freemium | United States | 4.4 | Compare |

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.

Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages.
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.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Turn long articles and reports into clear key points in seconds
Turn long articles and reports into clear key points in seconds
Paraphrase, proofread and summarize text with an AI writing workspace
Paraphrase, proofread and summarize text with an AI writing workspace
ChatGPT-powered grammar, rewrite, and translation helper for iPhone, iPad, and Mac
ChatGPT-powered grammar, rewrite, and translation helper for iPhone, iPad, and Mac

Visual storytelling without the blank-slide problem
Visual storytelling without the blank-slide problem
Buy once, use everywhere — an AI copilot that writes, summarizes and paints on any site
Buy once, use everywhere — an AI copilot that writes, summarizes and paints on any site
Your always-on AI teammate inside the Notion workspace

Tencent's free Hunyuan-powered assistant for chat, search, documents and images
Tencent's free Hunyuan-powered assistant for chat, search, documents and images

Free GLM-powered assistant that turns prompts into slides, sites and code

Academic proofreading, plagiarism checking and AI-powered writing tools in one place
Academic proofreading, plagiarism checking and AI-powered writing tools in one place