Run: 2026-02-20-01KHY7MNPY980JCPA07166VGX2

Run Details

Model:
Grok 4
Duration:
12.6s
Cost:
$0.006779
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
94.82% 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 mansion loomed ominously under the full moon's glow. Eleanor discovered the body sprawled lifeless in the grand library. Blood pooled around the victim, staining the antique Persian rug. She gasped, her hand trembling as she clutched the doorframe. Footsteps echoed from the hallway, approaching with deliberate, slow steps. The butler appeared, his face pale and eyes wide with shock. "Who could have done this terrible deed?" Eleanor whispered hoarsely. Shadows danced on walls, hiding secrets in every dark corner. A distant clock struck midnight, marking the hour of mystery. Outside, thunder rumbled, as rain began to pelt the windows.
created_at"2026-02-20T19:15:18.38Z" 2/20/2026, 7:15:18 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7618
moderation_latency(null)
generation_time12315
tokens_prompt46
tokens_completion176
native_tokens_prompt719
native_tokens_completion410
native_tokens_completion_images0
native_tokens_reasoning266
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"
usage0.00677925
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"b5cbbd88-d13c-2c05-c79e-93e6bf9639e0"
is_byokfalse
latency507
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771614918-cJ9aUOk9NuDnMw5cnwzE"
upstream_id"b5cbbd88-d13c-2c05-c79e-93e6bf9639e0"
total_cost0.00677925
cache_discount0.00152775
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
94.82% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
011
110
210
310
410
511
610
710
810
910