Web Agent Protocol vs Presto Voice

Presto Voice's feature set is operationally narrow and business-outcome oriented: voice order-taking at the speaker post, continuous upselling of add-ons and specials, 24/7 availability, POS and headset integration handled by Presto as integration specialist, and ROI reporting across non-intervention, upsell, and revenue lift. Notably it doesn't bet on one model — it runs a spectrum of Voice AI tuned for multi-brand menus and speech patterns. Deployment is managed: installation at scale without disrupting live lanes. As of 2026-09-21 it's available through the Toast Partner Ecosystem, shortening the integration path for Toast POS restaurant groups. Buyer fit is explicit: large QSR chains, franchise operators, Toast restaurant groups. It's not for dine-in-only concepts or teams wanting to configure the voice model or use a documented API.

Web Agent Protocol (OTA-v1) is the opposite shape: a technical building block. Fine-tuned from Qwen2.5-14B for browser-specific reasoning, it offers 128k context with inter-element attention, smart context understanding of page structures, result-oriented planning for multi-step workflows, precise tool use, MCP support, and browser-use integration. It's lightweight by design — 65 instances per DeepSeek V3 — and supports record-and-replay of browser interactions. Buyers are developers, QA teams, RPA developers, and enterprises scaling browser automation cheaply. No voice, no drive-thru, no POS. The two feature sets share zero overlap.

Neither product publishes self-serve pricing, so both require a sales conversation — but the economics and the reason differ sharply. Presto Voice is a managed enterprise deployment: installation at scale, ongoing vendor support, integration work handled by Presto, and ROI reporting tied to non-intervention rate, upsell offer rate, and incremental revenue. You're buying an outcome (higher average check, fewer human interventions at the speaker post) plus a partner who owns the rollout across franchise locations; budget for a long enterprise sales cycle and a per-location contract structure. It is explicitly not aimed at operators who need published self-serve pricing before a call. Web Agent Protocol is priced for developers and enterprises wanting to minimize browser-automation costs; its lightweight design (65 instances per DeepSeek V3) is a cost-efficiency argument, and the buyer profile includes budget-conscious teams who'd otherwise prefer open-source alternatives. The 2026-08-14 news that the APH Engine and servers were open-sourced in Rust and N Lang points to a developer-tooling ecosystem rather than a per-seat SaaS motion. Don't expect a pricing page from either — but only one of them is selling you a restaurant operations outcome.