Lesson plan

OpenAI

OpenAI is an American artificial intelligence (AI) public benefit corporation (PBC) headquartered in San Francisco, California. It develops "frontier" generative AI models, particularly its generative pre-trained transformer (GPT) series of large language models. Its release of ChatGPT in November 2022 has been credited with catalyzing the AI boom; , ChatGPT is the fifth-most-visited website globally. OpenAI also releases the GPT Image models and Codex, an AI coding agent. In March 2026, OpenAI closed a funding round with a post-money valuation of US$852 billion, making it one of the most valuable AI pure play companies in the world, rivalled only by Anthropic. OpenAI was founded in 2015 as a nonprofit, with Elon Musk and Sam Altman as co-chairs; Musk resigned in 2018. A for-profit subsidiary was created in 2019, and a 2025 restructuring converted the subsidiary into OpenAI Group PBC, that is 26% owned by the nonprofit OpenAI Foundation. Microsoft has invested over $13 billion into OpenAI. OpenAI partners with the US government via the Stargate Project infrastructure venture, and with the Department of Defense, Los Alamos National Laboratory, and arms company Anduril Industries. Former OpenAI personnel have founded competing AI companies including Anthropic, Safe Superintelligence Inc., SpaceXAI, and Thinking Machines Lab.…

Back to article

Article summary

OpenAI is an American artificial intelligence (AI) public benefit corporation (PBC) headquartered in San Francisco, California. It develops "frontier" generative AI models, particularly its generative pre-trained transformer (GPT) series of large language models. Its release of ChatGPT in November 2022 has been credited with catalyzing the AI boom; , ChatGPT is the fifth-most-visited website globally. OpenAI also releases the GPT Image models and Codex, an AI coding agent. In March 2026, OpenAI closed a funding round with a post-money valuation of US$852 billion, making it one of the most valuable AI pure play companies in the world, rivalled only by Anthropic. OpenAI was founded in 2015 as a nonprofit, with Elon Musk and Sam Altman as co-chairs; Musk resigned in 2018. A for-profit subsidiary was created in 2019, and a 2025 restructuring converted the subsidiary into OpenAI Group PBC, that is 26% owned by the nonprofit OpenAI Foundation. Microsoft has invested over $13 billion into OpenAI. OpenAI partners with the US government via the Stargate Project infrastructure venture, and with the Department of Defense, Los Alamos National Laboratory, and arms company Anduril Industries. Former OpenAI personnel have founded competing AI companies including Anthropic, Safe Superintelligence Inc., SpaceXAI, and Thinking Machines Lab.…

Key claims

  1. date of foundation: 2015 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the date of foundation is "2015". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1379045865

Key claims and bibliography are generated from the same tracked claims and sources as the article page.