Side by side OpenChainBench measurements. Identical layout, no editorial verdict, the live data leads. Each panel surfaces the aggregate plus the chain and region breakdowns when the underlying bench exposes them, straight from the Prometheus queries that drive the parent benchmark pages.
CFTC-regulated US prediction market exchange. REST trade API (trade-api/v2) with documented per-tier rate limits; the market data WebSocket requires authentication.
Prediction market on Base mixing CLOB and AMM markets, from 5-minute crypto markets to long-dated events. Public REST API, rate limits undocumented.
Kalshi
Leads125 ms
Limitless
Trails206 ms
Per region
| Region | Kalshi | Limitless |
|---|---|---|
| US East | 15 ms | 201 ms |
| EU West | 125 ms | 38 ms |
| Singapore | 327 ms | 329 ms |
Kalshi
Leads127 ms
Limitless
Trails135 ms
Per region
| Region | Kalshi | Limitless |
|---|---|---|
| US East | 20 ms | 138 ms |
| EU West | 127 ms | 143 ms |
| Singapore | 327 ms | 116 ms |
A pair is published when all four conditions hold. Both providers run in the same OpenChainBench benchmark for at least seven consecutive days. Each provider has at least 1000 samples in the measurement window. The head to head query has observable third party search demand. Both providers have a public /products/[slug] page on OCB. The full pair ledger is versioned in the public repo so the methodology is externally verifiable.