Product / UX / UI & API

ChatGPT

OpenAI's flagship consumer chat product, web, desktop, and mobile apps for conversing with GPT-5/o-series models, with built-in tools (search, code interpreter, image gen, voice, memory). The category-defining UI by a wide margin: 900M weekly active users and 50M paying subscribers as of Feb 2026, on a $25B annualized run rate.

ChatGPT (OpenAI) consumer chat app, web + iOS/Android + desktop. Proprietary/closed UI scored as the closed counterpart in this category. Live and verified June 2026; default model GPT-5 family. (The model SKU is scored separately under base/finetuned categories; this record scores the chat surface.)

Openness

1 high confidence

1.0

source: closed
self-host: none
license: proprietary(SaaS app + API)

Proprietary, SaaS-only consumer app; no source, no self-host. Closed counterpart in the ui_api shelf.

https://openai.com/index/how-people-are-using-chatgpt/ recorded 2026-06-04
OpenAI's proprietary ChatGPT product page/usage report

Adoption

5 high confidence

5.0

OpenAI officially announced ~900M weekly active users (27 Feb 2026), up from 800M (Oct 2025), with 50M paying subscribers. Mass-market scale, far above the >10M threshold. Attributed to the ChatGPT surface.

https://techcrunch.com/2026/02/27/chatgpt-reaches-900m-weekly-active-users/ recorded 2026-06-04
OpenAI official announcement of 900M weekly active users, Feb 2026

Capability

5 high confidence

5.0

Frontier consumer chat product within ui_api: full multimodal, code execution, web search, custom GPTs, memory, Team/Enterprise multi-user. Sets the bar for the category's chat-UI feature matrix.

https://openai.com/index/how-people-are-using-chatgpt/ recorded 2026-06-04
ChatGPT capabilities/usage report

Unchanged since 2026-06-09 (last edited, not re-checked)