The Compute Tightness Index reached 64.0/100 on 2026-10-15, a Tight reading that is 7.5 pts higher over thirty days. Capacity is tightening unevenly: a multi-cloud catalog shows 0/13 B200 regions and 0/24 H200 regions provisionable on public rental listings, while H100 availability is only slightly better at 8/66. The directional pressure indicates input-side GPU supply is growing scarce and spot discounts are compressing toward on-demand. It is the input-side companion to the Token Demand Index (the output — tokens consumed).
← looser · 45 balanced · 60 tight · tighter →
As of 2026-10-15 the blended index sits at 64.0 (Tight) and has been tightening over the past 30 days (+7.5 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 | $7.94 | $4.26 | 46% | 67 | 52.1 | ▼ -10.7 |
| H200 | $4.72 | $3.72 | 21% | 117 | 67.8 | ▲ +6.7 |
| H100 | $3.49 | $2.62 | 25% | 219 | 65.6 | ▲ +13.3 |
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.
Independent reads of the same market, not in the blended score. Datacenter clouds: provider list prices and whether each listed region can be provisioned right now, from a multi-cloud catalog (12% of all listed regions across every GPU type were provisionable at the snapshot, so a GPU's deviation from that norm is the signal, not the absolute share). Marketplace: a large GPU marketplace's lowest on-demand price and its own stock grade, for its datacenter-hosted ("secure") tier and its individually-hosted ("community") tier. As of 2026-10-16.
| GPU | Datacenter clouds | Marketplace · secure | Marketplace · community | |||||
|---|---|---|---|---|---|---|---|---|
| Median list $/hr | p25–p75 | Provisionable / listed | vs catalog | $/hr | Stock | $/hr | Stock | |
| B200 | $6.52 | $6.33–$6.76 | 0 / 13 | +12 pts | $7.99 | Low | — | — |
| H200 | $4.47 | $4.15–$4.54 | 0 / 24 | +12 pts | $5.29 | Low | — | — |
| H100 | $2.66 | $2.48–$3.73 | 4 / 62 | +5 pts | $3.99 | Medium | — | — |
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 a daily aggregate of public GPU rental listings across cloud providers — on-demand, reserved and spot medians 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 2025-09-01); 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.