Run: 2026-02-20-01KHYADYXSHFFWVT9RH2N09R44

Run Details

Model:
Grok 4
Duration:
21.6s
Cost:
$0.013062
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
In the shadowy mansion, moonlight filtered through cracked stained glass. Detective Clara Thorne arrived, her boots echoing on marble floors. The butler bowed low, his face pale with unspoken dread. She followed him upstairs, sensing tension in the air. In the study, a body lay slumped over the desk. Blood stained the antique rug beneath the victim's chair. Clara knelt down, examining the wound with careful precision. A poisoned dagger rested nearby, gleaming under dim lamplight. Suspects gathered outside, whispering secrets in hushed, urgent tones. The mystery began unfolding, clues hidden in plain sight.
created_at"2026-02-20T20:04:04.162Z" 2/20/2026, 8:04:04 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency17332
moderation_latency(null)
generation_time21584
tokens_prompt46
tokens_completion165
native_tokens_prompt719
native_tokens_completion829
native_tokens_completion_images0
native_tokens_reasoning701
native_tokens_cached680
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"
usage0.013062
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"a6583407-b6b2-d5e7-3a6e-6dad54f74c65"
is_byokfalse
latency65
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771617844-hux5zUuuvp1Och0jLdzA"
upstream_id"a6583407-b6b2-d5e7-3a6e-6dad54f74c65"
total_cost0.013062
cache_discount0.00153
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
84.45% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
39
410
59
69
79
89
99