What's the VIN of my car?

L18 Benchmark · Tier 2: varied retrieval and interpretation · ai-eng/plans/tee-leah-benchmarks.md:102

Question

A good answer

Ask which, or give both named cars: Outback 4S4BTAFC3M3184027, Civic 19XFC2F53GE031846. A single answer is acceptable only if the retrieved evidence actually resolves what “my” means.

Evidence named in the benchmark: n_outback, n_civic, relevant ownership evidence

Model runs

42 attempts

Attempt	Result set	Seconds	Calls	Answer
L18#1	conversations-all-changes	17.6	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#2	conversations-all-changes	22.5	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#3	conversations-all-changes	8.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#4	conversations-all-changes	18.8	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#5	conversations-all-changes	16.8	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-deployed-build-current-prompt	16.2	3	The VIN for your Outback is 4S4BTAFC3M3184027.
L18#1	conversations-deployed-build-current-prompt	21.1	3	The VIN for your Outback is 4S4BTAFC3M3184027. I also see a record for Marcus's Civic, but it doesn't have a…
L18#1	conversations-deployed-build-new-prompt	20.3	4	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-deployed-build-new-prompt	31.8	7	The VIN for the Outback is 4S4BTAFC3M3184027. I didn't find a VIN listed for Marcus's Civic.
L18#1	conversations-deployed-build-prompt-versions	14.4	3	The VIN for your Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-deployed-build-prompt-versions	17.6	3	The VIN for your Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-e2e-fixes-thinking	5.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#1	conversations-e2e-fixes-thinking	7.2	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#3	conversations-e2e-fixes-thinking	3.3	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#5	conversations-e2e-fixes-thinking	3.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#4	conversations-e2e-fixes-thinking	4.0	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#1	conversations-e2e-gateway-thinking	5.9	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-e2e-gateway-thinking	6.0	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#3	conversations-e2e-gateway-thinking	6.8	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#5	conversations-e2e-gateway-thinking	3.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#4	conversations-e2e-gateway-thinking	3.2	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#1	conversations-e2e-prompt-versions	5.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#3	conversations-e2e-prompt-versions	4.3	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#2	conversations-e2e-prompt-versions	4.9	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#4	conversations-e2e-prompt-versions	11.1	1	The VIN for your 2021 Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#5	conversations-e2e-prompt-versions	9.7	1	The VIN for your 2021 Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#1	conversations-staging-deployed-old-build	14.5	3	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#1	conversations-staging-deployed	6.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#2	conversations-staging-deployed	3.4	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#1	conversations-thinking-keep	15.0	2	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-thinking-keep	14.5	2	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#3	conversations-thinking-keep	15.2	2	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#1	conversations-thinking-off	18.3	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#2	conversations-thinking-off	4.9	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#3	conversations-thinking-off	7.9	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#4	conversations-thinking-off	5.5	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#5	conversations-thinking-off	5.8	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.
L18#1	conversations-thoughts-drop	14.4	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#2	conversations-thoughts-drop	5.5	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#3	conversations-thoughts-drop	5.1	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#4	conversations-thoughts-drop	3.8	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027. How else can I help?
L18#5	conversations-thoughts-drop	8.6	1	The VIN for your Subaru Outback is 4S4BTAFC3M3184027.

Comments

Comments are added in the local viewer; this copy is read-only.

Supporting records

The records the answer rests on, from the benchmark's evidence column, with whose they are.

Outback Car · saved Sep 27, 2021

Whose: Leah Brandvold (Me) (driver)

driver	me
display_name	Outback
year	2021
make	Subaru
model	Outback
trim_level	Premium
color	Autumn Green
vin	4S4BTAFC3M3184027
purchase_date	2021-07-10

File: photos/outback.jpg

Marcus's Civic Car · saved Sep 3, 2021

Whose: Marcus Adeyemi (driver)

driver	marcus
display_name	Marcus's Civic
year	2016
make	Honda
model	Civic
trim_level	LX
color	Silver
vin	19XFC2F53GE031846
purchase_date	2018-10-27
remarks	bought used, 31k miles

File: photos/civic.jpg

Traps it covers

two_of_a_kind "My car" is the Outback (Leah drives it), but the lookup tool cannot tell today.

not_saved The Civic has no insurance policy saved. Why: Marcus insures his own car with Granite Fork, the company the Outback left in 2024. It renews each January, the card is in his glovebox, and Leah has been asking him for the details since November 2025. The account holds only her open reminder and one line in a 2024 note. The car is insured; the account cannot show it.