OpenAI Reportedly Regains Nearly Half of AI Compute Market Share From Anthropic in 2026

According to a Wall Street Journal report citing OpenRouter data, OpenAI's share of AI compute routed through the platform rose from under 25% at the start of 2026 to nearly 50% last month. The data comes largely from AI-native startups, with some legacy tech companies also included. The report comes as OpenAI reportedly shifted focus from Sora and an erotica generator toward productivity and business customers.