Anthropic vs OpenAI: Who’s Winning the AI Race in 2026?
Update, July 2026: Refreshed for the resolved valuation race and the new flagship models. Anthropic closed a $65 billion Series H at a $965 billion post-money valuation on May 28, 2026, overtaking OpenAI as the most valuable AI startup, and both labs have since shipped new flagships: Claude Opus 4.8 and GPT-5.6. For the first time since ChatGPT launched, Anthropic has overtaken OpenAI in US business adoption. Ramp’s April 2026 AI Index, published on May 13, puts Anthropic at 34.4% of tracked enterprise spending versus OpenAI at 32.3%. Anthropic added 3.8 percentage points in a single month while OpenAI fell 2.9. A year ago, OpenAI sat near 32% and Anthropic […]
