Run: 2026-09-01-01M1EPBV3CQ8XY7VHBCT9GSC33

Run Details

Model:
Grok 4.6 (Reasoning, High)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
1m 29s
Cost:
$0.035258
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
On a dark stormy night the butler discovered the lifeless body of the wealthy mansion owner lying in the study. Thick blood stained the expensive Persian rug while heavy rain lashed the windows fiercely creating an eerie atmosphere of dread. The famous detective arrived quickly after receiving the maid's frantic call reporting the horrible discovery in the locked study room. Potential suspects assembled nervously in the grand library including the greedy nephew the beautiful wife and the shady business partner. He began questioning them one by one trying to uncover the motive behind this cold blooded murder in the mansion.
created_at"2026-09-01T14:35:55.892Z" 9/1/2026, 2:35:55 PM
model"x-ai/grok-4.6-20260810"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency519
moderation_latency(null)
generation_time89413
tokens_prompt46
tokens_completion402
native_tokens_prompt241
native_tokens_completion5828
native_tokens_completion_images(null)
native_tokens_reasoning5719
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"
usage0.035258
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788273355-bWNFLmQNHFJ49ElOGI8V"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788273355-MzkNQFNenfqlFf2rP5Mq"
upstream_id"2a2a617a-5385-99ee-b031-4f70caf01013"
provider_responses
0
endpoint_id"0d0536e3-7eb1-4acb-8249-c8813365c2d8"
id"2a2a617a-5385-99ee-b031-4f70caf01013"
is_byokfalse
latency139
model_permaslug"x-ai/grok-4.6-20260810"
provider_name"xAI"
status200
total_cost0.035258
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