8-Ticket Benchmark: Simo-1 Beats Two-Call Decisions API Agent on Speed and Accuracy
CIRRUS_IPFS · reddit · 2026-10-08
A dev team tested OpenAI's newly released Decisions API against the integrated single-output model Simo-1 on 8 support ticket scenarios:
- Simo-1: 20.0 seconds, 8/8 correct.
- Luna + Decisions agent: 47.9 seconds, 7/8 correct.
The agent used a two-step flow — a Luna-based call for understanding/decision logic, then a Decisions API call to execute the action — while Simo-1 returned actions and arguments in a single response.
The takeaway: a small but early signal of the overhead multi-call agents incur versus tightly integrated models on speed-sensitive tasks. The author invites discussion on when two-call decision architectures are worth it and how to optimize them.
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