Run: 2026-07-08-01KX1MWWR1AB1R8M8VA14ER7JG

Run Details

Duration:
24.4s
Cost:
$0.016076
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 Victorian mansion stood silent under the bright moonlit sky as rain poured heavily outside soaking the grounds completely. Inside the grand library a wealthy businessman lay dead with a letter opener stuck deeply right into his bloody chest. Detective Harlan arrived promptly at the scene noting the broken window and the muddy footprints leading towards the main hallway. The family members gathered in the living room whispering about possible motives while the butler prepared strong coffee for everyone. A mysterious crumpled note found under the corpse suggested blackmail involving a large inheritance and several very dangerous secrets buried.
created_at"2026-07-08T19:57:23.036Z" 7/8/2026, 7:57:23 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency456
moderation_latency(null)
generation_time23820
tokens_prompt46
tokens_completion839
native_tokens_prompt241
native_tokens_completion2631
native_tokens_completion_images(null)
native_tokens_reasoning2523
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"
usage0.016076
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"8af831be-e350-9bf9-95cc-6fd45cc1db11"
is_byokfalse
latency112
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-1783540643-4emRQfwyuNDpuZnc7Red"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783540643-fwhs1pxw0gQomT2yU9Q3"
upstream_id"8af831be-e350-9bf9-95cc-6fd45cc1db11"
total_cost0.016076
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