Run: 2026-02-20-01KHYB0ZE752VT5E43SYSNCG41

Run Details

Model:
Grok 4
Duration:
17.3s
Cost:
$0.008969
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
76.39% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
In the shadowy depths of the ancient manor house, a piercing scream shattered the silence of the stormy midnight hour. Detective Eliza Thorne arrived swiftly at the scene, her keen eyes scanning the opulent room for any subtle clues. The victim, a wealthy industrialist named Victor Blackwood, lay sprawled on the Persian rug with a dagger in his chest. Gathered suspects whispered nervously among themselves, each one hiding secrets that could unravel the web of deceit and betrayal. Outside, thunder rumbled ominously as rain pelted the windows, setting the stage for a night of revelations and danger.
created_at"2026-02-20T20:14:27.281Z" 2/20/2026, 8:14:27 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency13009
moderation_latency(null)
generation_time17232
tokens_prompt46
tokens_completion158
native_tokens_prompt719
native_tokens_completion556
native_tokens_completion_images0
native_tokens_reasoning437
native_tokens_cached679
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"
usage0.00896925
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"8be7d67b-9617-dfd8-af27-246a68f5e7da"
is_byokfalse
latency421
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618467-wdvLW2hXi8ryWkFbdfWf"
upstream_id"8be7d67b-9617-dfd8-af27-246a68f5e7da"
total_cost0.00896925
cache_discount0.00152775
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
76.39% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
119
220
319
419