Cambent Token Index · Methodology · Index API

The TKX

The benchmark for the cost of AI capability. One fixed scoring recipe, tracked over time, measuring what a unit of standardized intelligence costs across open and closed models.

THE CAMBENT TOKEN INDEXAs of Nov 13, 2026 · Source: Cambent TKX · Baseline 100 = Aug 4, 2026
Official index
TKX (GENERAL)
116.2
as of Nov 13, 2026
+16.2% vs Aug 4, 2026 baseline · lower cost
TKX Open
99.1
as of Nov 13, 2026
−0.9% vs Aug 4, 2026 baseline · higher cost
TKX Frontier
122.3
as of Nov 13, 2026
+22.3% vs Aug 4, 2026 baseline · lower cost

Cambent Curve

Cambent Curve.100baselineTKX 116.19TKX Open 99.09TKX Frontier 122.26

A higher TKX means AI capability costs less.

Observed history

Nov 13, 2026: TKX 116.19 · TKX Open 99.09 · TKX Frontier 122.26.

Published readings since Aug 4, 2026.

The line starts at the published baseline of 100 on Aug 4, 2026. Later points are published readings.

DateTKXTKX OpenTKX Frontier
Aug 4, 2026100100100
Aug 5, 2026100.1298.71100.27
Aug 7, 2026100.1298.71100.27
Aug 8, 2026100.1298.71100.27
Aug 9, 2026100.1298.71100.27
Aug 10, 2026100.1298.71100.27
Aug 11, 2026100.1998.41100.37
Aug 12, 2026100.1998.41100.37
Aug 13, 2026100.1998.41100.37
Aug 14, 2026100.1998.41100.37
Aug 15, 2026100.1998.41100.37
Aug 16, 2026100.1998.41100.37
Aug 17, 2026100.1998.41100.37
Aug 18, 2026100.1998.41100.37
Aug 19, 2026100.1998.41100.37
Aug 20, 2026100.1998.41100.37
Aug 21, 202699.8493.65100.37
Aug 22, 202699.8493.65100.37
Aug 23, 202699.8493.65100.37
Aug 24, 202699.8493.65100.37
Aug 25, 202699.8493.65100.37
Aug 26, 202699.8493.65100.37
Aug 28, 202699.8493.65100.37
Aug 29, 202699.8493.65100.37
Aug 30, 202699.8493.65100.37
Aug 31, 202699.8493.65100.37
Sep 2, 202699.8493.65100.37
Sep 3, 202699.8493.65100.37
Sep 4, 202699.8493.65100.37
Sep 5, 202699.8493.65100.37
Sep 6, 202699.8493.65100.37
Sep 7, 202699.8493.65100.37
Sep 8, 202699.8493.65100.37
Sep 9, 202699.8493.65100.37
Sep 10, 202699.8493.65100.37
Sep 11, 2026102.1123.02100.14
Sep 12, 2026102.1123.02100.14
Sep 13, 2026102.1123.02100.14
Sep 15, 2026102.1123.02100.14
Sep 16, 2026100.98107.67100.14
Sep 17, 2026100.98107.67100.14
Sep 18, 2026100.98107.67100.14
Sep 21, 2026100.98107.67100.14
Sep 22, 2026100.98107.67100.14
Sep 24, 2026100.98107.67100.14
Sep 25, 2026100.98107.67100.14
Sep 29, 2026100.98107.67100.14
Oct 2, 2026102107.67100.14
Oct 5, 2026102107.67100.14
Oct 6, 2026102107.67100.14
Oct 8, 2026102107.67100.14
Oct 9, 2026102107.67100.14
Oct 10, 2026102107.67100.14
Oct 11, 2026102107.67100.14
Oct 12, 2026102107.67100.14
Oct 13, 2026102107.67100.14
Oct 14, 2026102107.67100.14
Oct 15, 2026102107.67100.14
Oct 16, 2026102107.67100.14
Oct 17, 2026102107.67100.14
Oct 18, 2026102107.67100.14
Oct 19, 2026102107.67100.14
Oct 20, 2026102107.67100.14
Oct 21, 2026102107.67100.14
Oct 22, 2026102107.67100.14
Oct 23, 2026102107.67100.14
Oct 24, 2026102107.67100.14
Oct 25, 2026102107.67100.14
Oct 26, 2026102107.67100.14
Oct 27, 2026106.06109.78100.14
Oct 28, 2026108.1299.09100.14
Oct 29, 2026109.3299.09104.4
Oct 30, 2026110.7499.09108.68
Oct 31, 2026112.5799.09113.53
Nov 1, 2026116.1999.09122.26
Nov 2, 2026116.1999.09122.26
Nov 3, 2026116.1999.09122.26
Nov 4, 2026116.1999.09122.26
Nov 5, 2026116.1999.09122.26
Nov 6, 2026116.1999.09122.26
Nov 7, 2026116.1999.09122.26
Nov 8, 2026116.1999.09122.26
Nov 9, 2026116.1999.09122.26
Nov 10, 2026116.1999.09122.26
Nov 11, 2026116.1999.09122.26
Nov 12, 2026116.1999.09122.26
Nov 13, 2026116.1999.09122.26

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.

Why TKX moved today

Positive contributions raised the TKX (lower cost); negative contributions lowered it (higher cost).

No price or score changes on Nov 13, 2026. The TKX reading is unchanged.

Net change: 0.00 points.

How today's move was built

Example moves

No live moves today. Showing a worked example of how a published move is explained. These rows are examples, separate from today's official reading.

  1. Aug 24, 2026Example price cutPrice change: $5 in, $25 out to $4 in, $20 outCapability scores unchanged.Contribution to TKX: +20.55 points, lower cost
  2. Aug 25, 2026Example: price and scores unchanged. Its share of the index can still move when the rest of the basket changes.Price change: unchanged ($2 in, $6 out)Capability scores: reasoning 84, code 84, extraction 84, classification 84.
  3. Aug 26, 2026Example: price and scores unchanged. Its share of the index can still move when the rest of the basket changes.Price change: unchanged ($2 in, $6 out)Capability scores: reasoning 84, code 84, extraction 84, classification 84.Contribution to TKX: −5.63 points, higher cost

Example total: +14.92 points (lower cost).

Example moves, separate from today's official reading+20.55Example price cutAug 24, 2026Example: price and scores unchangedAug 25, 2026−5.63Example: price and scores unchangedAug 26, 2026Net +14.92Net
Provisional market impact

Price this against your stack →

Cite the TKX: GET /v1/index/tkx · Methodology

Correction (Oct 20, 2026): the model listed as DeepSeek V4 is now named DeepSeek V3.2, with its price and price source updated; four Claude price-source labels corrected. Index values unchanged. Read the correction notes →

How to read the TKX

Each index is set to 100 at the Aug 4, 2026 baseline and moves as prices and quality on the current members change. Composite quality follows a fixed standard workload: 30% reasoning, 30% code, 25% extraction, 15% classification. The headline basket holds general-purpose models scored across all four families; specialists rank in their task families. When a fully scored general model joins or leaves and changes what capability costs, the published reading moves by that model's effect. That day's membership move is shown separately from price and score changes. How the number is built: https://cambent.ai/methodology