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.
AMM prediction market with a keyless public REST API budgeted at 30 requests per 10 seconds. No order book endpoint and no public WebSocket.
Codex Kalshi
Leads177 ms
Myriad
Trails261 ms
Per region
| Region | Codex Kalshi | Myriad |
|---|---|---|
| US East | 89 ms | 99 ms |
| EU West | 200 ms | 234 ms |
| Singapore | 204 ms | 1.26 s |
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.