Run: 2026-07-08-01KX1M79RY4Z7A8D7Q9FYBG4XN

Run Details

Duration:
18.8s
Cost:
$0.010976
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
Detective Harlan examined the victim's body carefully noting the deep wound and the missing antique watch from the bloody scene. Rain poured heavily outside the large windows while the four main suspects waited nervously in the adjoining room for questioning. A mysterious note lay crumpled near the cold fireplace hinting at a long standing bitter family feud over inheritance rights. The butler claimed he heard nothing unusual that fateful night yet his eyes darted around revealing hidden fear and guilt.
created_at"2026-07-08T19:45:35.012Z" 7/8/2026, 7:45:35 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency487
moderation_latency(null)
generation_time18741
tokens_prompt46
tokens_completion521
native_tokens_prompt241
native_tokens_completion1781
native_tokens_completion_images(null)
native_tokens_reasoning1690
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"
usage0.010976
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"986235dd-14bb-912a-8968-605e08413049"
is_byokfalse
latency109
model_permaslug"x-ai/grok-4.5-20260708"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783539935-uU1Z3I3H1m5M7A9NLK07"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783539935-aHe1Nm4giTsW35TaFRVM"
upstream_id"986235dd-14bb-912a-8968-605e08413049"
total_cost0.010976
cache_discount0.000192
upstream_inference_cost0
provider_name"xAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
120
220
320