API usage share chart: Anthropic surges to 72% while OpenAI falls to 12%
Sauers_ · x · 2026-11-15
A usage-share chart of frontier AI labs from July 2025 through late 2026 shows a dramatic reshuffle:
- Anthropic climbed steadily from 40% mid-year to 72%, dominating the market
- OpenAI declined to just 12%
- Open-weight labs rose sharply to 12% in recent months
- Google 3%, Meta 1%, xAI 1% — all marginalized
The chart's data source and methodology (tokens vs requests) are unspecified, so read with caution, but the trend — Anthropic's overwhelming lead and the rise of open-weight models — is the story worth watching.
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