OpenAI · ai-assistants · founded 2022

ChatGPT for humans

ChatGPT is OpenAI's consumer and business assistant, wrapping GPT models in a chat UI with memory, browsing, image generation, and custom GPTs. The public product launched in November 2022 and became the default way millions of people try large language models. The API lives on the OpenAI platform rather than inside the chat app, which is why the Twin Score splits a superb human surface from an equally serious machine surface. Team workspaces, GPTs, and Advanced Voice are human-first; structured outputs, tool calling, and batch APIs are agent-first. Twin Score on this directory is 88 for humans and 90 for agents, using the public rubric (interface, onboarding, human docs, collaboration, support, pricing fairness, accessibility, reliability versus API quality, MCP or tool surface, CLI, structured docs, machine auth, quotas, determinism, and skill packaging). ChatGPT is sold by OpenAI, founded 2022, headquartered in San Francisco, USA. Pricing in public materials: Free tier; Plus, Pro, and Business plans. API billed separately on platform.openai.com. Machine capabilities we record: API excellent, MCP basic, CLI basic, docs excellent, auth OAuth and API keys on the OpenAI platform. This page is editorial, not a star rating scraped from users.

Edited by Edu Tor. Twin Score updated 2026-08-01. Method: methodology and rubric.