Run: 2026-03-09-01KKAC7EFJANNWV037E30P1QT6

Run Details

Duration:
12.0s
Cost:
$0.012852
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 worried the windows of Blackthorn Hall as Inspector Vale arrived, carrying a soaked valise and three unanswered telegrams inside. The butler admitted him without speaking, though his white gloves were streaked with ash and something darker at fingertips tonight. From the drawing room came a waltz, abruptly silenced when a woman screamed upstairs, then apologized to nobody at all. Vale climbed toward the sound, noticing muddy bootprints crossing the runner, each print edged neatly with glittering salt crystals alone. In Lady Ashcombe's locked study, the clock ticked loudly beside her body, while six guests studied one another like jurors. Nobody mentioned the missing necklace until Vale saw its clasp embedded in the victim's palm, clenched around auburn hair tightly.
created_at"2026-03-09T22:42:02.889Z" 3/9/2026, 10:42:02 PM
model"openai/gpt-5.4-20260305"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10971
moderation_latency(null)
generation_time11828
tokens_prompt46
tokens_completion202
native_tokens_prompt41
native_tokens_completion850
native_tokens_completion_images0
native_tokens_reasoning687
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"
usage0.0128525
router(null)
provider_responses
0
endpoint_id"9ff5625c-403f-4d7f-b895-58ac7295062c"
id"resp_07033d290b25d2f40169af4cbafc3881968a98d991bfd7b5ed"
is_byokfalse
latency232
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-1773096122-qnVWLUXtJQv7iVi552aK"
upstream_id"resp_07033d290b25d2f40169af4cbafc3881968a98d991bfd7b5ed"
total_cost0.0128525
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
020
120
220
320
420
520