Run: 2026-02-20-01KHY99KGWZ2QT10THJVYBXGJ7

Run Details

Model:
Grok 4
Duration:
16.4s
Cost:
$0.007082
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
84.45% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The fog-shrouded street echoed with distant sirens late at night. A lone figure discovered the body slumped against the alley wall. Blood pooled around the victim, staining the cold cobblestone ground. Inspector Hale arrived swiftly, his trench coat flapping in the wind. He knelt down carefully to examine the gruesome stab wounds. No weapon was visible anywhere near the lifeless form. Witnesses gathered nervously, whispering theories about the unknown killer. Hale questioned them one by one under flickering streetlamp light. Secrets began unraveling slowly as alibis started to crumble apart. The mystery deepened further with each puzzling clue uncovered.
created_at"2026-02-20T19:44:12.839Z" 2/20/2026, 7:44:12 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10874
moderation_latency(null)
generation_time16293
tokens_prompt46
tokens_completion177
native_tokens_prompt719
native_tokens_completion436
native_tokens_completion_images0
native_tokens_reasoning305
native_tokens_cached718
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"
usage0.0070815
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"d670c6cc-cf6d-939c-3c92-8035b617f99b"
is_byokfalse
latency130
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771616652-8CBjPlJBYW4F7jzDdTF1"
upstream_id"d670c6cc-cf6d-939c-3c92-8035b617f99b"
total_cost0.0070815
cache_discount0.0016155
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
84.45% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
111
210
311
410
59
69
710
810
99