OpenAI Overview
Pro stress-test →OpenAI's ChatGPT has nearly a billion weekly users, making it one of the most-used AI platforms globally. The company develops frontier AI models including GPT series and Codex, serving both consumer and enterprise markets while pursuing hardware expansion and preparing for potential IPO.
Strategic Profile
Pro stress-test →OpenAI has seen its usage market share drop from 50% in 2023 to 27% at the end of 2025, facing intensifying competition from Anthropic and Google. Altman and CFO Sarah Friar have been selling investors on OpenAI's growth story as the company looks to wrap up what could be a $100 billion fundraising round, with OpenAI reportedly racing toward a fourth-quarter 2026 initial public offering.
Competitive Landscape
Pro stress-test →OpenAI CEO Sam Altman expressed concern that Google Gemini's growth was starting to encroach on OpenAI. Anthropic holds dominant lead in enterprise LLM usage with 40% market share, while Google and Anthropic have been gaining ground against ChatGPT's 800 million weekly users. Codex competes directly with Anthropic's Claude Code.
Industry Context
OpenAI operates in Artificial Intelligence / Large Language Models.
Key facts
Founded: 2015 · Headquarters: San Francisco, US · Employees: 3500+ · Revenue: $13B+ (estimated) · Market cap: $500B (private valuation)