Run: 2026-07-08-01KX1MJ1RAFWKDZ5FCNFBGB8DR

Run Details

Duration:
18.5s
Cost:
$0.014966
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 dimly lit Victorian room held a silent female corpse sprawled across the antique wooden floor with blood pooling nearby. Detective John Harlan entered slowly with his notebook ready as he carefully surveyed the chaos left by the brutal killer. A mysterious letter lay crumpled beside the cold still body bearing strange symbols that hinted at a hidden secret society. Outside the storm raged fiercely while curious witnesses gathered murmuring about the victim's sudden unexpected demise earlier that fateful night. He knew this case would surely challenge every skill he possessed during his long distinguished career as a seasoned detective.
created_at"2026-07-08T19:51:27.248Z" 7/8/2026, 7:51:27 PM
model"x-ai/grok-4.5-20260708"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency395
moderation_latency(null)
generation_time18392
tokens_prompt46
tokens_completion747
native_tokens_prompt241
native_tokens_completion2446
native_tokens_completion_images(null)
native_tokens_reasoning2334
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"
usage0.014966
router(null)
provider_responses
0
endpoint_id"0e927811-b1a8-4604-8b86-db5ce6eaa87c"
id"3dbe5e7e-3bc2-95ef-b968-25aed084e3b9"
is_byokfalse
latency111
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-1783540287-JSiCju6y4q4ucq5yZkCU"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783540287-fHQNqLJdsoiY8S9gbz9f"
upstream_id"3dbe5e7e-3bc2-95ef-b968-25aed084e3b9"
total_cost0.014966
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