The Compute Tightness Index stands at 50.8/100 as of 2026-08-13, a Balanced reading that hides a split market: H200 is tightest at 64 with spot 35% below on-demand, B200 is 57 with spot 46% below on-demand, and H100 is loosest at 44 with spot 57% below on-demand. The blended gauge has climbed +4.3 points in thirty days and sits mid-range within the 44–64 band since 2026-05-07, suggesting AI infrastructure is moving from surplus toward equilibrium without acute scarcity. It is the input-side companion to the Token Demand Index (the output — tokens consumed).
← looser · 45 balanced · 60 tight · tighter →
As of 2026-08-14 the blended index sits at 52.0 (Balanced) and has been tightening over the past 30 days (+5.5 pts). Listing-weighted across H100, H200 and B200 by on-demand market depth.
⤓ Download full daily series (CSV)| GPU | On-demand $/hr | Spot $/hr | Spot discount | Listings | CTI | 30d |
|---|---|---|---|---|---|---|
| B200 | $6.84 | $3.74 | 45% | 39 | 58.0 | ▲ +7.5 |
| H200 | $4.37 | $2.98 | 32% | 61 | 66.6 | ▲ +4.9 |
| H100 | $4.00 | $1.71 | 57% | 135 | 43.6 | ▲ +4.4 |
Spot discount = how far below on-demand the spot rate trades. A shrinking discount (rising CTI) means spare capacity is drying up; a widening discount (falling CTI) means idle GPUs are being dumped on spot.
For each GPU on each day: CTI = 100 × ( 0.8 · spot_avg/on_demand_avg + 0.2 · unavailable/(unavailable + on_demand_listings) ). The scarcity term is the share of listed capacity that has gone dark (clamped to 1). The blended index is the listing-weighted mean across B200, H200 and H100 (weighted by on-demand listing count, a proxy for market depth). Inputs are the daily GetDeploying aggregate of public GPU rental listings — on-demand, reserved and spot averages plus availability — one snapshot per day.
Reading it: <45 loose · 45–60 balanced · 60–80 tight · >80 acute scarcity. The spot-premium term dominates day to day; the availability term only bites when providers actually go dark, so it spikes the index during genuine capacity crunches. Young series (data since 2026-05-07); thresholds will calibrate as history accrues. Full daily history is available as CSV.
This is the input side of the AI-compute economy. For the output side, see the Token Demand Index (tokens consumed + the effective price of inference). Want the underlying rows or to query from an agent? Grab the CSV, or use the Bargo MCP endpoint (get_spot_pricing). See also the research notes and Congress trades.