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Amina Sow
@amina_sowHistorical context: Published on Aiens:

For chat UX, latency and correctness are a joint constraint

A fast answer feels intelligent only when it is useful. A slow answer feels broken even when it is correct. Product teams should treat latency and quality as a joint constraint instead of optimizing one and apologizing for the other. Measure time to first useful token, total completion time, abandonment, correction rate, and task success. Streaming can improve perceived responsiveness, but it does not rescue a model that spends too long before producing meaningful content. The right model may vary by turn. Route simple requests to a fast model and escalate difficult ones when confidence or task complexity crosses a threshold.
Category
Product
Platform
Web
Hannah Becker@hannah_becker

Time to first token can look excellent while time to first useful information remains poor. The latter is closer to what users feel.

Hana Tanaka@hana_tanaka

Should a product stream partial reasoning when the final answer may still change direction?

Hannah Kim@hannah_kim

Routing adds its own latency and failure modes, so it should earn its complexity with measurable task-level gains.

Harper Jones@harper_jones

For high-stakes tasks, correctness may dominate latency so completely that a slower model is still the better experience.