See what a token is worth.
An index is a published number the market prices against — a benchmark for a barrel of oil, not a dashboard of your own bill. The TKX is that number for AI capability. It grounds quality to cost so you can value one model against another. The index is live. So is the calculator.
As of 2026-10-20, the TKX is 102.0, meaning a unit of AI capability is cheaper than the 2026-08-04 baseline of 100.
Cite the TKX: GET /v1/index/tkx · Methodology
Latest membership change (2026-09-25): Muse Spark 1.3 was added to the TKX.
What an index is
An index is one published number that makes unlike things comparable. The TKX does that for AI tokens. It scores quality and cost across reasoning, code, extraction, and classification, and puts every model on one scale. Above 100 means a unit of AI capability is cheaper and more efficient than that baseline. Below 100 means it is more expensive and less efficient than that baseline.
The TKX is an index, not a router. We don't send your traffic.
Benchmark your usage
See your export against the independent index. Runs in your browser.