Run: 2026-02-20-01KHYB5K043TNCK8JB737Z9B07

Run Details

Model:
Grok 4
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
10.4s
Cost:
$0.005012
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
97.79% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The moonlit alley reeked of danger. Shadows danced on damp walls. A lone figure hurried past. Suddenly, a muffled cry echoed. Footsteps halted in the gloom. Blood pooled under streetlight haze. A crumpled form lay still. Gloves concealed the killer's hands. Sirens wailed in the distance. Mystery shrouded the rainy night.
created_at"2026-02-20T20:16:58.382Z" 2/20/2026, 8:16:58 PM
model"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7268
moderation_latency(null)
generation_time10367
tokens_prompt46
tokens_completion97
native_tokens_prompt719
native_tokens_completion298
native_tokens_completion_images0
native_tokens_reasoning226
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"
usage0.0050115
router(null)
provider_responses
0
endpoint_id"d40bef9d-6936-4c57-9749-bf7399de4a77"
id"9e7d0a4d-83c5-8397-74a9-f5c0c8920160"
is_byokfalse
latency111
model_permaslug"x-ai/grok-4-07-09" 4/7/2009, 12:00:00 AM
provider_name"xAI"
status200
api_type"completions"
id"gen-1771618618-ZgZtX11FRDuJqKMTxGDh"
upstream_id"9e7d0a4d-83c5-8397-74a9-f5c0c8920160"
total_cost0.0050115
cache_discount0.0016155
upstream_inference_cost0
provider_name"xAI"

Evaluation details

Result Evaluator Details Meta Data
97.79% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
06
15
25
35
45
55
65
75
85
95