Run: 2026-02-20-01KHY7JJ375H65JY1JTZD2X35K

Run Details

Model:
Grok 4
Duration:
18.3s
Cost:
$0.008474
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
71.68% 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
The fog-shrouded manor loomed ominously on the cliffside, its ancient stones whispering secrets of long-forgotten scandals and hidden betrayals. Inside, Lady Harrington hosted a lavish dinner party, her guests clad in finery, exchanging polite smiles that masked underlying tensions. The butler served exquisite wine from crystal decanters, while the air hummed with conversations laced with subtle barbs and veiled threats. Suddenly, a piercing scream echoed through the grand hall, shattering the illusion of civility and drawing everyone toward the dimly lit study. There, slumped over his mahogany desk, lay Sir Reginald, a dagger protruding from his chest, blood pooling on priceless documents. Detective Eliza Thorne arrived swiftly at the scene, her sharp eyes scanning the room for clues amid the shocked faces. She noted the open window fluttering curtains, a scattered array of papers, and footprints muddied from the storm outside. Suspects murmured alibis under her scrutiny, each one harboring motives tied to inheritance, jealousy, or long-buried family grudges. As rain pounded against the panes, Eliza pondered the locked door mystery, knowing the killer lurked among the assembled guests. The night promised revelations and twists, with shadows concealing truths that would unravel the web of deceit before dawn.
created_at"2026-02-20T19:14:09.138Z" 2/20/2026, 7:14:09 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8321
moderation_latency(null)
generation_time18215
tokens_prompt46
tokens_completion348
native_tokens_prompt719
native_tokens_completion523
native_tokens_completion_images0
native_tokens_reasoning270
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"
usage0.00847425
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"d50df73f-193d-3514-e11f-8f7dbe4620f3"
is_byokfalse
latency530
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771614849-XELaIdgoITMwLiLSHhtd"
upstream_id"d50df73f-193d-3514-e11f-8f7dbe4620f3"
total_cost0.00847425
cache_discount0.00152775
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
71.68% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
021
120
221
322
420
520
619
719
820
919