5 AI chatbots with ISO 27001. 4 have a free plan. Half of the paid plans start at $9.99 a month or less. 1 is open source. Newest check: 2 Nov 2026.
268 of 721 tools were checked against the vendor's own page in the last 30 days.
| Tool | Price from | Free plan | Runs on | Rating | Checked |
|---|---|---|---|---|---|
| ChatGPTChatGPT is OpenAI's AI assistant, with 1.2 billion weekly users by OpenAI's count, the GPT-6 model family and plans that run from a free tier to a premium Pro tier. | $8/mo | Yes | Web · iOS · Android · Mac · Windows | 4.5 | 22 Oct |
| Microsoft CopilotMicrosoft's AI assistant across Windows, Edge, Word, Excel, Outlook and Teams, from a free tier to per-seat work plans on OpenAI's latest GPT-5 models. | $9.99/mo | Yes | Web · iOS · Android · Mac · Windows | 4.5 | 2 Nov |
| Mistral AIMistral AI is a Paris-based AI lab building open-weight foundation models such as Mistral Large 4 and the Vibe assistant, with EU-hosted infrastructure. | $14.99/mo | Yes | Web · iOS · Android · Mac · Windows | 3.9 | 10 Oct |
| LangdockModel-agnostic AI platform for companies with chat, agents and workflows; the vendor says 13,000+ companies use it, hosted in the EU. | €25/mo (about $28) | -- | Web | 3.4 | 31 Oct |
| CLOVA XCLOVA X is Naver's free Korean AI chatbot built on the 82B-parameter HyperCLOVA X model, scoring 84.14 on the HAE-RAE Bench versus 68.2 for rival LLMs. | Free | Yes | Web | -- | 23 Sep |
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