RBI Bakeoff: Coval results

Every simulation in the Coval org, pulled through the REST API on 2026-08-12. Completion Rate is Coval's judged verdict on whether the AI took the order to completion.

Overall completion rate
72.6%
2,414 judged conversations
Simulations pulled
6,880
With transcripts
2,833
No transcript
4047
Runs
198

Why conversations fail

Every Completion=NO conversation (661 of them), classified by what actually happened. 489 failures (74%) are the audio-only Coval persona unable to see the order-confirm screen: the AI asks "is your order on the screen correct?", the persona asks for a readback, the AI refuses or escalates. Excluding those from numerator and denominator, completion is 91.1% against the 72.6% headline. Click any bar to see the conversations behind it, with transcript links.

Harness artifact or protocol miss Real product failure
Table view
Failure causeCountShare
Persona can't see screen, AI escalates36054.5%
Persona can't see screen, AI refuses readback12919.5%
Order fine, never directed forward8713.2%
Escalated for other reasons6610.0%
Other (loops, cut off, misc)142.1%
Wrong or incomplete order50.8%

Completion rate by persona

The widest spread in the data. Background noise and customer confusion cost more than any single scenario does, which points at the audio front end rather than the ordering logic. Persona names click through to every conversation for that persona, with verdicts and transcripts. Click a bar to see that persona's failed conversations inline.

Table view
PersonaCompletionPassed
High Background Noise Speaker37.8%54/143
Confused Customer46.2%78/169
Impatient Customer59.1%107/181
Interruptive Speaker70.4%81/115
Behavioral - Complex-Order71.2%126/177
Low Volume Speaker72.7%93/128
Behavioral - Rush72.7%104/143
Standard Customer75.0%123/164
Accent - General American78.6%92/117
Accent - Hispanic/Latino79.5%268/337
Accent - AAVE79.5%105/132
Behavioral - Mind-Changer82.4%108/131
Super Fast Speaker84.6%99/117
Accent - Louisiana Creole85.6%95/111
Accent - Southern US87.2%95/109
Behavioral - Too-Talkative89.3%125/140

Completion rate by test case

Test case names link to the filtered runs list in Coval. Combo-offer scenarios cluster at the bottom. Click a bar to see that case's failed conversations inline.

Table view
Test caseCompletionPassed
Combo offer after tenders61.7%82/133
UAT #962.8%91/145
UAT #2964.3%83/129
UAT #264.6%84/130
UAT #1068.4%93/136
UAT #6168.8%95/138
Combo offer after signature chicken69.8%148/212
Alternative side offering72.4%92/127
UAT #873.7%101/137
Combo offer after sandwich74.4%99/133
UAT #6974.6%94/126
UAT #6475.8%122/161
UAT #3675.8%97/128
UAT #4277.1%101/131
UAT #1179.9%107/134
Mid-order quantity change84.0%121/144
UAT #185.1%143/168

Completion rate by batch

Four official passes, no movement. Whatever changed between them did not move the headline metric. Click a bar to see that batch's failed conversations.

Simulation Run 2026-08-18 23:27
100.0%
17/17
Simulation Run 2026-08-18 23:19
100.0%
17/17
Simulation Run 2026-08-18 22:13
100.0%
17/17
Simulation Run 2026-08-18 22:00
100.0%
17/17
Simulation Run 2026-08-18 17:12
100.0%
16/16
Simulation Run 2026-08-18 16:53
100.0%
17/17
Simulation Run 2026-08-18 16:41
100.0%
17/17
Simulation Run 2026-08-18 05:01
100.0%
34/34
Simulation Run 2026-08-17 23:46
100.0%
10/10
Simulation Run 2026-08-17 23:31
100.0%
17/17
Simulation Run 2026-08-17 02:54
100.0%
17/17
Simulation Run 2026-08-17 02:14
100.0%
17/17
Simulation Run 2026-08-13 21:47
100.0%
24/24
Table view
BatchCompletionPassed
Simulation Run 2026-08-18 23:27100.0%17/17
Simulation Run 2026-08-18 23:19100.0%17/17
Simulation Run 2026-08-18 22:13100.0%17/17
Simulation Run 2026-08-18 22:00100.0%17/17
Simulation Run 2026-08-18 17:12100.0%16/16
Simulation Run 2026-08-18 16:53100.0%17/17
Simulation Run 2026-08-18 16:41100.0%17/17
Simulation Run 2026-08-18 05:01100.0%34/34
Simulation Run 2026-08-17 23:46100.0%10/10
Simulation Run 2026-08-17 23:31100.0%17/17
Simulation Run 2026-08-17 02:54100.0%17/17
Simulation Run 2026-08-17 02:14100.0%17/17
Simulation Run 2026-08-13 21:47100.0%24/24
Sandbox (Main)97.0%32/33
Simulation Run 2026-08-18 23:0794.1%16/17
Simulation Run 2026-08-17 03:4194.1%16/17
Simulation Run 2026-08-17 00:3594.1%16/17
Simulation Run 2026-08-17 00:3494.1%16/17
Simulation Run 2026-08-16 23:0294.1%16/17
Simulation Run 2026-08-18 22:2993.8%15/16
Simulation Run 2026-08-18 17:4892.3%12/13
Simulation Run 2026-08-18 01:2990.6%29/32
Simulation Run 2026-08-18 22:5788.2%15/17
Simulation Run 2026-08-18 02:1088.2%15/17
Simulation Run 2026-08-17 01:5588.2%15/17
Simulation Run 2026-08-17 01:4588.2%15/17
Simulation Run 2026-08-16 23:5388.2%15/17
Staging (larger sample size)85.3%29/34
Simulation Run 2026-07-20 23:03 (scratch)83.5%71/85
Simulation Run 2026-08-16 23:1082.4%14/17
Simulation Run 2026-08-13 22:4280.0%16/20
Test new prompt (Aug)68.4%13/19
RBI Bakeoff67.1%365/544
Simulation Run 2026-07-20 23:58 (scratch)67.1%57/85
RBI Bakeoff 2026-07-2466.5%181/272
RBI Bakeoff 2026-07-24 Pass 566.4%180/271
RBI Bakeoff 2026-07-2365.8%179/272
Simulation Run 2026-07-20 22:35 (scratch)62.7%64/102
Simulation Run 2026-08-16 21:1058.9%43/73
Simulation Run 2026-08-17 01:0750.5%51/101
Simulation Run 2026-08-13 22:0050.0%5/10

UAT #64: Cajun Rice

Customer asks for Cajun Rice, an item that is not on the menu. The AI is expected to say so and recommend an alternative. Judged completion is 75.8% (122/161). Below is what the AI actually said first, classified into mutually exclusive buckets. Click a bucket to see each conversation with its transcript link.

Correct handling Stalled or evaded Wrong item risk
Table view
BehaviorCountShare
Denied, offered alternative14375.7%
No reply1910.1%
Stalled, never answered126.3%
False affirmation63.2%
Silent substitution52.6%
Off-topic / no answer42.1%

Every conversation that did not handle it cleanly

Simulation IDs link straight to the transcript in Coval.

BehaviorSimulationCompletionWhat the AI saidFinal cart
Silent substitutionn9RuKgnd3wdG4CC5eAFCxkYESSorry. Did you want red beans and rice instead?1x Red Beans & Rice
Silent substitution6coQ83bZgQsS4s3GPfNkzaYESSorry. I didn't catch that. Did you want Cajun fries or red beans and rice?1x Red Beans & Rice (Rice)
False affirmationHVVBFpgQhoHzjd4cdvvMQANOMoment while I check. Yes. We have Cajun rice available. Anything else?1x 3 Piece Signature Chicken Large Combo (Spi
False affirmationRnH6FT3GmZ3Hv6xCNUVCrZNoneOne moment while I check. Yes. We do. What else can I get you?empty
False affirmationhgyuPP8KDqJJEsKMvESaU3YESYes. We do. Anything else?1x Red Beans & Rice
Silent substitution4FR4jwHRfqUvqgAJrF2XPTNOI understand. You like red beans and rice instead?1x Red Beans & Rice
False affirmationVgYhUwitqqw9P598U7DTZ6YESYes. We have cinnamon apple pie. Anything else?1x Red Beans & Rice
False affirmationNrUhuZ4jqkBsHCxiSwvGA5NOYes. We still have Cajun rice. What else can I get for you?1x 2 Piece Signature Chicken Regular Combo (S
Silent substitutiondmAFv6oQ8GWM769WUYxndvNOI understand. You like red beans and rice instead?1x Red Beans & Rice
Silent substitution45XWUpe4n9PRL3RRg2gNFTYESWe have red beans and rice, regular or large.1x Red Beans & Rice
False affirmationiq3YZ5keVVpMYJ658SihtcYESYes. We do. Anything else?1x Red Beans & Rice
Off-topic / no answerXKt5LzkcDRMvMc9S8bxFpQNOIs your order at the bottom of the screen on the right correct?empty
No replyfkf7qmyNzG7ZQxuaN35jzzUNKNOWN(no reply)empty
No replyQ9ZAoiKYnMpptE48xc7AkJUNKNOWN(no reply)empty
No replyAZRTxAKVQSRMx9ks5BZQNTUNKNOWN(no reply)empty
No reply9JuSz3DXqWBpqKMHP5zhiFUNKNOWN(no reply)empty
No replyCLhjNdhWDF8HQfVGXUAhpJUNKNOWN(no reply)empty
No replyj2peTkJpNJFZUKtwC7SoM4UNKNOWN(no reply)empty
Off-topic / no answeroDLsiRp4YJiwNvRECoCVzvNOHi. Welcome to Popeyes. Can I get started for you today?empty
No replyoHDAyCc3JKQi4ZyRvfjmEUUNKNOWN(no reply)empty
No reply5hyNecizn9tfJQdu7E4L7rUNKNOWN(no reply)empty
No replyCLBggiuKwfSjienmPt8pnKNO(no reply)empty
No replyoG8JXudFpkP8We2HUuSBjMUNKNOWN(no reply)empty
No replyJcSV6LXTUp9z4cdK6CBJ83UNKNOWN(no reply)empty
No replyFfp4UzGupnTw8ZbWx8dNUmUNKNOWN(no reply)empty
No replyUJ9xRmpLcRazn85yfc2S66UNKNOWN(no reply)empty
No reply69kJV6uSxXTPnPkgDdd6GYNO(no reply)empty
No replya5uAzfq9qzUJdwHGRsVv7SUNKNOWN(no reply)empty
No reply2aiJjKhS4jzt98JMk8ZFw4UNKNOWN(no reply)empty
No replyQvoVsGfGwnxKsmwYiEwDbPUNKNOWN(no reply)empty
No replyHipV5TyCyxFkm5j8ucdmT5UNKNOWN(no reply)empty
No replyk5rdiY9uTxR5gpRspya2GoNO(no reply)empty
Stalled, never answered8d7fk8AU2CXDbzMqtVo9FENOOf course, take your time. What can I get started for you?1x 12 Piece Signature Chicken Family Meal (La
Stalled, never answeredEhyq6SYu9t7AfNkUNBUZuBNOOf course, take your time. What can I get started for you?empty
Stalled, never answered62iXYmGhkA32fKVEVWXeCmNOOf course, take your time. What can I get started for you?empty
Stalled, never answeredH5KQU8kJwVAxzKUTDMwYTJNoneOf course, take your time. Let me know when you're ready.empty
Stalled, never answeredUnKq7dAcxgVADSjBrEhht7NoneOf course, take your time. What can I get started for you?empty
Stalled, never answeredZPqTCA83fzoVPUwPkE7nW8NoneOf course, take your time. Let me know when you're ready.empty
Stalled, never answered75NkfSQrS7ozRZzwQk4myTNOMoment while I check.1x Red Beans & Rice
Off-topic / no answerfGV8TzvyGwyeNYb2i5pYPZYESSorry. I didn't catch that. What drink would you like?1x Red Beans & Rice
Stalled, never answeredcfni4H85i9EDdNmfiEtSvnNOOf course, take your time. What can I get started for you?1x Red Beans & Rice; 1x 12 Piece Signature Ch
Stalled, never answeredJgFG4PQBVwfSgcFVUJWhqrYESMoment while I check.1x Spicy Chicken Sandwich Large Combo (Red Be
Off-topic / no answerMAYfprdnawRdU4QxacycXnNOOf course. Regular or large?1x Red Beans & Rice
Stalled, never answered5ik9KqeSZ5q6EBFuEZFE6XYESLet me check that for you.1x Cajun Fries; 1x Biscuit; 1x Cane Sweeeet T
Stalled, never answeredaBpxBKFoEnNoNUrCwcRrhLYESOf course, take your time. What can I get started for you?1x Red Beans & Rice; 1x 12 Piece Signature Ch
Stalled, never answeredfriVsaj8bnB4e4eTNVVuKoYESOne moment while I check.1x Red Beans & Rice

UAT deep dive: Ghost Pepper (UAT #1, #10, #42)

The Ghost Pepper Sandwich is not in the POS menu. Across 288 judged conversations the agent never carted it once; it substitutes Classic or Spicy silently about half the time, the same class of failure RBI flagged on Cajun Rice. Full findings, disclosure rates, and every non-disclosed conversation: Ghost Pepper UATs page.