Run: 2026-03-18-01KM07P72FWQ6EP2HX0Q92B1BZ

Run Details

Duration:
7.0s
Cost:
$0.002105
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 manor windows while the guests whispered nervously. At midnight, Professor Hale collapsed beside the cracked ballroom mirror. His left hand clutched a silver key smeared with blood. No one heard the gunshot, only the clock's final chime. Detective Mara Venn entered, removing her gloves with deliberate calm. Then she noticed the window latch, freshly polished from inside.
created_at"2026-03-18T10:26:01.433Z" 3/18/2026, 10:26:01 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6827
moderation_latency(null)
generation_time6940
tokens_prompt46
tokens_completion365
native_tokens_prompt41
native_tokens_completion461
native_tokens_completion_images0
native_tokens_reasoning371
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"
usage0.00210525
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_04b66a7cb1d43d2c0169ba7db982648193b93409dac10a1d95"
is_byokfalse
latency193
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-1773829561-MOZwIJh8gJtORLjQn902"
upstream_id"resp_04b66a7cb1d43d2c0169ba7db982648193b93409dac10a1d95"
total_cost0.00210525
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
010
110
210
310
410
510