According to Vercel AI Gateway data, Anthropic, OpenAI and Google together accounted for a 97.09% share of AI model spending on June 27, 2026; spending on open models was practically negligible at that time. Over the past five days, however, the big three’s share fell to a historic low, which may raise questions about market concentration and the competitiveness of open models.
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Anthropic, OpenAI and Google dominated AI spending on June 27, according to Vercel data
According to Vercel AI Gateway data, Anthropic, OpenAI and Google together accounted for a 97.09% share of AI model spending on June 27, 2026; spending on open models was practically negligible at that time.
