Run: 2026-07-08-01KX1MG7SCDH44YSK02J34HZ6J

Run Details

Duration:
24.2s
Cost:
$0.016304
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 stormy night concealed the dark secrets of the lovely old mansion where something terrible was about to unfold quietly. In the dimly lit dusty study room the victim lay motionless beside the shattered glass of the expensive antique window. Detective Harris arrived promptly at the crime scene to carefully examine the cryptic clues left by the deadly cunning killer. Rain poured relentlessly outside as the investigation began with many questions remaining about the motive behind this horrible murder case.
created_at"2026-07-08T19:50:28.032Z" 7/8/2026, 7:50:28 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3752
moderation_latency(null)
generation_time23512
tokens_prompt46
tokens_completion815
native_tokens_prompt241
native_tokens_completion2669
native_tokens_completion_images(null)
native_tokens_reasoning2582
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"
usage0.016304
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"5b7c55b0-680f-91ba-89d7-4a31fa62119e"
is_byokfalse
latency115
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-1783540228-q7MbXswwncgxBstw898x"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783540228-Y1aZ4KC2wMpkiZsj4DIJ"
upstream_id"5b7c55b0-680f-91ba-89d7-4a31fa62119e"
total_cost0.016304
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