Run: 2026-03-18-01KM08489307280158V23QZ4FR

Run Details

Duration:
6.9s
Cost:
$0.001790
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 silver lines across the manor's blackened windows tonight. Inside, candles trembled beside a body crumpled beneath the staircase. Detective Mara Vale knelt, noting the blood had already cooled. A shattered mirror reflected her face, and someone else's shadow. No footprints marked the marble, though every door stood locked. From the hallway, a violin began playing one mournful note.
created_at"2026-03-18T10:33:41.423Z" 3/18/2026, 10:33:41 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6671
moderation_latency(null)
generation_time6782
tokens_prompt46
tokens_completion377
native_tokens_prompt41
native_tokens_completion391
native_tokens_completion_images0
native_tokens_reasoning306
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"
usage0.00179025
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0489d31c82bf48660169ba7f857ae08193b1073410b4ba0eac"
is_byokfalse
latency187
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-1773830021-1sDomu297Jz8xxUtbfeF"
upstream_id"resp_0489d31c82bf48660169ba7f857ae08193b1073410b4ba0eac"
total_cost0.00179025
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