Run: 2026-03-18-01KM08SZGZSKAAN9JC10FGR1SM

Run Details

Duration:
12.2s
Cost:
$0.004801
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 stitched the windows as Detective Vale entered Blackthorn Manor. Inside, candles trembled beside a body on the marble floor. No one had heard the scream, according to the butler. Yet every guest looked guilty, especially the smiling widow herself. Vale knelt, noticing crimson thread shining beneath the victim's fingernail. Someone had cleaned the knife, but not carefully enough tonight. A clock chimed once, and every conversation stopped dead there. Then Vale saw the footprints leading away from the library. They belonged to someone wearing slippers, and blood still dripped. Vale smiled faintly; the killer had already invited another guest.
created_at"2026-03-18T10:45:33.359Z" 3/18/2026, 10:45:33 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11750
moderation_latency(null)
generation_time11941
tokens_prompt46
tokens_completion779
native_tokens_prompt41
native_tokens_completion1060
native_tokens_completion_images0
native_tokens_reasoning917
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00480075
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_001d1a02f80884d20169ba824d6fd081909bb5693b1b3edc7d"
is_byokfalse
latency207
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773830733-R3Cs30taOl4GApCnE7mJ"
upstream_id"resp_001d1a02f80884d20169ba824d6fd081909bb5693b1b3edc7d"
total_cost0.00480075
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

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