Run: 2026-05-01-01KQHSY2VC962917PQSXXXP81P

Run Details

Model:: Grok 4.20 (Reasoning)
Test:: Data extraction
Scenario:: Who's the tallest?
Duration:: 5.3s
Cost:: $0.001287
Provider:: xAI

Evaluation summary

Score	Evaluator	Details Link
Fail	Matches text	(details)
Pass	Matches Regex	(details)
no eval	Overall

Model input

User/Human

Who is the tallest person based on the following text? Only return the name, nothing else.

Jack is shorter than Jill. Jill is taller than Tom but shorter than Sarah. Mike is the same height as Jack.

Model response

Sarah

The text states Jack is shorter than Jill (Jack < Jill), Jill is taller than Tom (Tom < Jill), and Jill is shorter than Sarah (Jill < Sarah). Mike is the same height as Jack (Mike = Jack). This establishes the order Tom < Jill < Sarah, with Jack and Mike both below Jill. Sarah is therefore strictly taller than all others mentioned, with no comparisons indicating anyone exceeds Sarah.

Evaluation details

Result	Evaluator	Details	Meta Data
Fail	Matches text	Case sensitive: Sarah	n/a
Pass	Matches Regex	/\bSarah\b/	n/a
no eval