Run: 2026-03-12-01KKHZMFVY1CD3NEX8WYMTNQT7

Run Details

Model:
Grok 4.20 (Beta, Reasoning)
Test:
Data extraction
Scenario:
Who's the tallest?
Duration:
3.2s
Cost:
$0.004532
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

AI
Sarah The text directly establishes Sarah > Jill, with all others (Jack, Mike, Tom) confirmed shorter than Jill. No comparisons place anyone above Sarah, making this deduction unambiguous despite one missing pairwise relation (Tom vs. Jack).
created_at"2026-03-12T21:35:54.245Z" 3/12/2026, 9:35:54 PM
model"x-ai/grok-4.20-beta-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2905
moderation_latency(null)
generation_time3164
tokens_prompt52
tokens_completion63
native_tokens_prompt167
native_tokens_completion738
native_tokens_completion_images0
native_tokens_reasoning691
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0045316
router(null)
provider_responses
0
endpoint_id"33f49f24-a0de-4dcf-872d-ca514e83fbae"
id"22c8c18e-29ec-50ad-ba1f-c2647f81bb55"
is_byokfalse
latency293
model_permaslug"x-ai/grok-4.20-beta-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773351354-HJGsNZbwztdWbHtjRddK"
upstream_id"22c8c18e-29ec-50ad-ba1f-c2647f81bb55"
total_cost0.0045316
cache_discount0.0002304
upstream_inference_cost0
provider_name"xAI"

Evaluation details

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