Run: 2026-04-24-01KQ0NT28Z7S28R7KKS0RJC4W3

Run Details

Duration:
12.9s
Cost:
$0.019885
Provider:
OpenAI

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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain polished the courthouse steps when Inspector Vale found blood. It shimmered beneath lamplight, leading toward the locked records office. Inside, Judge Marlowe sat upright, smiling despite the bullet wound. His gavel rested neatly beside a glass of untouched brandy. On the desk, one torn verdict burned without any flame. The office door remained bolted from within, impossibly secure tonight. Vale noticed mud on the windowsill, though windows were sealed. A clock chimed thirteen, then stopped before finishing midnight properly. Outside, the jurors waited, whispering names they feared speaking aloud. Vale pocketed a silver cufflink engraved with his own initials.
created_at"2026-04-24T21:19:53.128Z" 4/24/2026, 9:19:53 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11812
moderation_latency(null)
generation_time12135
tokens_prompt46
tokens_completion604
native_tokens_prompt41
native_tokens_completion656
native_tokens_completion_images0
native_tokens_reasoning516
native_tokens_cached0
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"
usage0.019885
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0e2327ff754f1f500169ebde793a2c81969ae0e258319e2f4a"
is_byokfalse
latency257
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777065593-Vijjqq3TpLppMP7Yy5QX"
session_id(null)
api_type"completions"
id"gen-1777065593-MT9BHWfPBnjyvCkpzUSJ"
upstream_id"resp_0e2327ff754f1f500169ebde793a2c81969ae0e258319e2f4a"
total_cost0.019885
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910