At a glance
- ChatGPT is listed under Chat assistants, alongside Claude, DeepSeek and Gemini.
- ChatGPT is available on Web, macOS, Windows and API.
- ChatGPT works with Gmail, Slack and PowerPoint.
- ChatGPT's main features: Deep research, Image generation, Voice, Projects, Memory, Codex.
- ChatGPT's website lists SOC 2, ISO 27001, GDPR and HIPAA.
- ChatGPT has a public API.
- We haven't confirmed whether ChatGPT has a free plan.
Facts from chatgpt.com, checked October 23, 2026.
The summary writes itself once 5 people have reviewed this tool.
It's built only from what reviewers say: who it's best for, who should think twice, and what comes up again and again.

