Run: 2026-07-08-01KX1M5DWEA3RCZ1FGZ0JESMSV

Run Details

Duration:
20.8s
Cost:
$0.014924
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 upon its ancient crumbling stone walls. Inside the dusty library a body lay sprawled across the wooden floor with a bloody knife protruding from its chest. Detective Harlan examined the crime scene carefully noting the open window and muddy footprints leading out into the dark garden. Who could have committed this heinous act and why did they leave so many obvious clues behind them this night? The old clock struck midnight as the detective realized that the murderer was still hiding somewhere nearby in the shadows.
created_at"2026-07-08T19:44:33.937Z" 7/8/2026, 7:44:33 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency423
moderation_latency(null)
generation_time20422
tokens_prompt46
tokens_completion723
native_tokens_prompt241
native_tokens_completion2439
native_tokens_completion_images(null)
native_tokens_reasoning2331
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"
usage0.014924
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"16a7de60-fea3-9300-9ead-df736922a5ed"
is_byokfalse
latency116
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-1783539873-dJ28ZbXL1d1acUrNmqSm"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783539873-6QcdGK26bUISTzUvwv1D"
upstream_id"16a7de60-fea3-9300-9ead-df736922a5ed"
total_cost0.014924
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
sentences5
wordCounts
020
120
220
320
420