Run: 2026-03-06-01KK1H0T3M5AVXR33B0ZQF4W5E

Run Details

Duration:
4.7s
Cost:
$0.002383
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
60.65% 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 lashed Blackthorn Manor as mourners gathered, their umbrellas trembling like nervous witnesses beneath the bruised evening sky tonight. Inside, silver candlesticks flickered across portraits whose painted eyes seemed strangely alert, as though anticipating scandal before dessert arrived. Lady Vale welcomed everyone with brittle charm, her smile precise and bloodless, while thunder rolled somewhere beyond the cliffs. Among the guests stood Dr. Harlow, discreetly watching the grandfather clock, whose pendulum marked each second like a warning. When the butler announced supper, a scream erupted upstairs, sharp enough to silence the storm and freeze every heartbeat. They found Sir Alistair sprawled within his locked study, a letter clenched tightly, and fresh mud staining Persian carpet.
created_at"2026-03-06T12:12:38.396Z" 3/6/2026, 12:12:38 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency393
moderation_latency(null)
generation_time4661
tokens_prompt46
tokens_completion204
native_tokens_prompt41
native_tokens_completion152
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.0023825
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_0717ebf63135c7340169aac4b6783c81959e18fafda68e0386"
is_byokfalse
latency138
model_permaslug"openai/gpt-5.4-20260305"
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-1772799158-Za2Cjce56ZiuSZnltiRp"
upstream_id"resp_0717ebf63135c7340169aac4b6783c81959e18fafda68e0386"
total_cost0.0023825
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
60.65% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
019
119
219
319
419
519