Data · Token Price Index
TPI — Token Price Index
The current benchmark for the cost of frontier AI inference.
Current TPI
Last updated
12-month change
30-day change
The TPI is the geometric mean blended cost of inference across 23 leading AI models from 11 providers. Updated weekly with full methodology transparency.
For the live chart, historical series, model comparison, cost simulator, and complete methodology, visit tokenpriceindex.com.
Weekly history
Token Price Index, weekly snapshots since May 15, 2026.
The Token Price Index is calculated weekly. The series below shows the formal weekly cadence since May 15, 2026. Programmatic access is available at /data/tpi-history.json.
TPI = geometric mean blended cost across active index members, in USD per million tokens. Methodology and full historical series at tokenpriceindex.com/methodology.
DeepSeek bills peak rates, double the off-peak rate, from 01:00 to 04:00 and 06:00 to 10:00 UTC on weekdays; all other hours, including weekends, are off-peak. The index carries the off-peak rate, which applies for the large majority of each week.
Data licensed under CC BY-NC 4.0. Free to use and redistribute for non-commercial purposes with attribution to Token Price Index (tokenpriceindex.com). For commercial licensing, contact hello@tokenpriceindex.com. Provided as-is — verify current pricing with providers before making procurement decisions.
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