Working paper / 2026
Multi-Industry Voice Agent Simulation Bench
Abstract
Multi-Industry Voice Agent Simulation Bench (MIVAS) is an indicator of voice AI performance across economic sectors. MIVAS is comprised of tasks and verifiers with granular rewards executed in production-grade multi-agent RL environments across industries where voice AI is being adopted the fastest. Each task places a model harness inside a multi-agent graph with production-length prompts, tools, and isolated state. Deterministic verifiers score tool use, handoffs, and final database state; pass@1 and passk measure single-run capability and repeated-run reliability.
Clone the repository, pair a model harness with an industry task suite, and reproduce the evaluation environment.
Customer Support / T3-H3
What this task measures
The caller is on the line with Kestrel Electronics for one locked request: Book a bench visit then cancel it. They keep repeating that ask through a callback offer, a different ticket, or an unrequested fix. We included it as a hard techcrew service case because the service ladder and the safety refusals for recalled or hazmat devices are the support flows that look helpful when they go wrong. The agent succeeds only if it stays on that request, reaches the outcome by following the verification then service path, and leaves the record exactly as this case requires: the right row written or cleared, and nothing extra.
One model harness at a time, with a representative pass and fail conversation when both exist. OpenAI Realtime 2.1 is the default view.
Recording
Conversation cost $0.327
0:00 / 3:43 · audio · trace 813314 · click a span to play, drag to scrub, scroll to pan
Audio
Speech Audio
Agent Audio
Handoffs
Tool Calls
Errors
Transcript
How a conversation passes
Combined pass is the logical and of three deterministic gates. Tools, handoff path, and final database state must all pass on the same conversation. One miss fails the call.
Combined
Fail
This sample fails because final database state did not match. Combined cannot pass unless every gate does.
Expected versus actual tool calls on this conversation.
Expected
Actual
Parameters
+ from: reception
+ to: verification
Output
None recorded.
None recorded.
Parameters
+ full_name: Grace Okonkwo
+ order_number: KE-4471860
Output
+ ok: true
Parameters
card_last4: 6628
card_last4: 6628
postal_code: 97005
postal_code: 97005
Output
+ ok: true
Parameters
None recorded.
None recorded.
Output
+ ok: true
Parameters
+ from: verification
+ to: service
Output
None recorded.
None recorded.
Parameters
order_number: KE-4471860
order_number: KE-4471860
Output
+ ok: true
Parameters
- issue: will not charge
+ issue: won’t charge
order_number: KE-4471860
order_number: KE-4471860
+ sku: SKU-CMP-9930
Output
+ ok: true
Parameters
+ date: first available
- issue: will not charge
+ issue: won’t charge
order_number: KE-4471860
order_number: KE-4471860
service_type: bench
service_type: bench
+ sku: SKU-CMP-9930
Output
+ error_code: INVALID_DATE
+ ok: false
Parameters
+ date: September 3
+ issue: won’t charge
+ order_number: KE-4471860
+ service_type: bench
+ sku: SKU-CMP-9930
Output
+ ok: true
Parameters
+ appointment_id: 1
Output
+ ok: true
Parameters
+ reason: caller finished; appointment canceled and no further help requested
Output
None recorded.
None recorded.
Open a row for parameters and outputs. Required tools must appear. Extra industry tools are allowed. Parameter miss: check_coverage, book_service_appointment. Extra: book_service_appointment, end_call.
Full industry architecture, same graph as the industry page. The left diagram marks the expected specialist path in green. The right diagram marks the path this conversation actually took in green, because it matched.
Expected path
transfer_to_verification → transfer_to_service
Actual path
transfer_to_verification → transfer_to_service
The final-database gate failed, and no row-level difference was recorded between the expected hangup and the actual hangup.
Locked caller script. This is the technical definition. Copy it as written.
Open with exactly: "Book a TechCrew Bench visit for my Aurora Pro 16 that will not charge, first available." Give identity when asked. Order KE-4471860. Let them book the first August bench slot on the store calendar. Do not choose a specific date or change the location or state, even if the agent insists that a month or day is required; keep asking for the first available August bench visit. Do not mention canceling until they have confirmed a visit is booked. As soon as they confirm a booked day and time, say exactly: "I cannot make that day. Please cancel that appointment." Hang up once they confirm the cancel. Do not say you are done until the cancel is confirmed. Once they have finished what you asked and confirmed it, say exactly: "Thank you, that's all I needed." and end the call. Do not start a second request.
