See what a token is worth.
Compare what AI capability costs across open and closed models, on one published scale. The TKX scores each model on reasoning, code, extraction and classification against its price, and publishes a reading every day.
Data current as of Nov 13, 2026
As of Nov 13, 2026, the TKX is 116.2, meaning a unit of AI capability is cheaper than the Aug 4, 2026 baseline of 100.
Cite the TKX: GET /v1/index/tkx · Methodology
Latest membership change (Nov 4, 2026): Cohere Command R was dropped from 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. A higher TKX means AI capability costs less. Each reading compares with the Aug 4, 2026 baseline of 100.
Cambent publishes the TKX and the data behind it. Use it to compare model prices and understand the cost of capability. Cambent is independent of the providers it measures.
Benchmark your usage
See your export against the independent index. Runs in your browser.