Run: 2026-09-01-01M1EP0XZA33SYEREDA1BDSFFQ

Run Details

Model:
Grok 4.6 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 45s
Cost:
$0.040550
Provider:
xAI

Evaluation summary

Score Evaluator
Details Link
100.00% 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 old mansion stood silent under the pale moonlight as heavy rain poured down on the deserted country road nearby. Detectives arrived quickly to find a lifeless body lying on the floor of the old mansion with signs of murder. Inspector Harlan examined the crime scene thoroughly with his experienced partner looking for any possible fingerprints or other important clues. The victim seemed like a successful businessman who probably had numerous enemies in the competitive world of high finance nowadays. Suddenly a loud scream echoed from the upper floor causing all the detectives to rush upstairs in search of answers.
created_at"2026-09-01T14:29:58.386Z" 9/1/2026, 2:29:58 PM
model"x-ai/grok-4.6-20260810"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency626
moderation_latency(null)
generation_time104889
tokens_prompt46
tokens_completion1243
native_tokens_prompt241
native_tokens_completion6710
native_tokens_completion_images(null)
native_tokens_reasoning6602
native_tokens_cached128
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.04055
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788272998-R42pcAwvCQJnlsANu0Uf"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788272998-il17g2YmmqCVXO2Uz4m9"
upstream_id"4c5ffd2b-a9ae-9b62-aa5f-e5ac02326f73"
provider_responses
0
endpoint_id"0d0536e3-7eb1-4acb-8249-c8813365c2d8"
id"4c5ffd2b-a9ae-9b62-aa5f-e5ac02326f73"
is_byokfalse
latency164
model_permaslug"x-ai/grok-4.6-20260810"
provider_name"xAI"
status200
total_cost0.04055
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420