Run: 2026-10-05-01M46BH3QRFTD03CCVP3V9Y9TM

Run Details

Duration:
15.1s
Cost:
$0.005932
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain battered Blackthorn Manor all evening, but the scream arrived precisely when every clock inside stopped at eleven seventeen simultaneously. Detective Mara Vale found the hostess sprawled beneath her own portrait, wearing pearls nobody remembered seeing before that dreadful night. Her husband stood beside the fireplace, holding an empty brandy glass, while something dark dripped steadily from his immaculate cuff. The servants insisted every door had remained locked, although muddy footprints crossed the carpet and ended halfway up the staircase. Mara knelt beside the body and noticed a folded invitation tucked between cold fingers, addressed in her own distinctive handwriting. She had never met Lady Blackthorn, never accepted this invitation, and certainly never written the words waiting beneath its seal. Inside the envelope, a single line promised that before sunrise Mara would identify the murderer or become the second victim.
created_at"2026-10-05T15:39:44.254Z" 10/5/2026, 3:39:44 PM
model"openai/gpt-6.1-sol-20260929"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10203
moderation_latency(null)
generation_time15079
tokens_prompt46
tokens_completion501
native_tokens_prompt41
native_tokens_completion585
native_tokens_completion_images0
native_tokens_reasoning415
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"
service_tier"default"
usage0.005932
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791214784-H5ViVanAxPUTrZQbc6Bu"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791214784-8smKCTMWBIXMUNH46v3K"
upstream_id"resp_0491a05af57d820d016ac3c4c05e3887d195ceeea406a972d7"
provider_responses
0
endpoint_id"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id"resp_0491a05af57d820d016ac3c4c05e3887d195ceeea406a972d7"
is_byokfalse
latency340
model_permaslug"openai/gpt-6.1-sol-20260929"
provider_name"OpenAI"
status200
total_cost0.005932
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620