Chat GPT
History of Chat GPT
Key ChatGPT Milestones
- Publicly launched in November 2022
- Within five days, ChatGPT amassed over 1 million users, making it one of the fastest-growing consumer software launches ever
- Just two months after launch it had reached 100 million users
- As of September 2025, ChatGPT has reached 800 million weekly active users
- Users are now sending over 1 billion prompts per day (as of 2025)
Privacy Considerations
Privacy is often a concern with ChatGPT.
Just a few months ago, a court ordered OpenAI to indefinitely preserve ChatGPT conversations, even those deleted, across consumer plans, unless users are on enterprise plans or Zero Data Retention (ZDR) API endpoints.
OpenAI is currently appealing this order.
Further reading:
https://openai.com/index/response-to-nyt-data-demands/?utm_source=chatgpt.com
Plans & Inclusions
Free Users Only Access
– Access to GPT 4.1 mini
– Real-time data from the web with search
– Limited access to GPT 4o, OpenAI o4-mini, and deep research
– Limited access to file uploads, data analysis, image generation, and voice mode
– Code edits with the ChatGPT desktop app for macOS
– Use custom GPTs
Plus
Everything in Free plus:
– Extended limits on messaging, file uploads, data analysis, and image generation
– Standard and advanced voice mode with video and screensharing. Access to ChatGPT agent and multiple reasoning models (OpenAI o3, o4-mini, and o4-mini-high)
– Access to a research preview of GPT 4.5, our largest model yet, and GPT 4.1, a model optimised for coding tasks
– Create and use projects, tasks, and custom GPTs
– Limited access to Sora video generation
– Opportunities to test new features
Pro
Everything in Plus and:
– Unlimited access to all reasoning models and GPT 4o
– Unlimited access to advanced voice, with higher limits for video and screensharing
– Access to OpenAI o3 pro, which uses more compute for the best answers to the hardest questions
– Extended access to ChatGPT agent
– Extended access to Sora video generation
– Access to research preview of Codex agent
Unlimited subject to abuse guardrails
ChatGPT tools include:
File Uploads – Upload PDFs, spreadsheets, decks or docs. Use ChatGPT to summarise key points, extract insights, rewrite sections, compare versions.
Browser – Search the live web from inside the chat. Use it to find fresh stats, validate ideas, avoid tab overload.
Image Generation (DALL·E 3) – Create visuals from short prompts. (Image editing is Team + Enterprise only)
Deep Research – Paste long content or links and get a digestible summary. Often used automatically inside ChatGPT Agents.
Web Search (Agent-enabled) – Pulls in articles, examples, or citations. Often behind the scenes during multi-step tasks.
Canvas (Beta – Desktop only) – Write and edit inside a live doc, like Google Docs, but smarter. For writing, not visual layouts (yet).
For full details on pricing and what is included with which plan, including Team and Enterprise visit: https://openai.com/chatgpt/pricing/
Link to Video – https://www.youtube.com/watch?v=0Uu_VJeVVfo
Useful Links – Chat GPT
OpenAI website – https://openai.com/
Open AI YouTube – https://www.youtube.com/@OpenAI/featured
Open AI Academy – https://academy.openai.com
Open AI Podcast – https://openai.com/podcast
ChatGPT – https://chatgpt.com
Discover Custom GPTs – https://chatgpt.com/gpts
