Why did openai rebound in december? A business and technology insights company. Β· openai leads enterprise ai adoption among us businesses, outpacing anthropic and google. Β· after months of debate over whether openai was losing ground to fast-rising rivals, new corporate spending data has suggested the opposite, with the chatgpt maker noted tightening its grip on enterprise ai just as businesses move from experimentation to routine, budgeted use. New entrants have climbed the ranks for ai -related spending , underscoring a shift away from the dominance of major foundational model providers. Businesses , but this credit card spending data tells only part of the enterprise ai storyβ€”and reveals a massive blind spot in how we measure ai market share. Openai dominates discrete ai purchases at 36. 5% adoption among u. s. Bottom line up front: Β· ramp ’ s latest data supports this trend, revealing that smaller, specialized ai vendors are making impressive gains. Startup that tracks corporate card and bill […] By sector, finance and manufacturing were the fastest-growing adopters of new ai spend , with adoption growing 3% and 2%, respectively. Β· worldwide spending on ai is forecast to total $2. 52 trillion in 2026 , a 44% increase year-over-year, according to gartner, inc. How has openai impacted business adoption? Fresh figures from ramp , a u. s. Ramp data shows rising paid usage in december 2025. How has ai impacted us businesses in december 2025? Is openai the future of ai? Openai appears to have tightened its grip on the enterprise ai market, with fresh data showing a sharp rise in business spending just months after concerns grew about mounting competition from rivals.