Run: 2026-02-16-01KHKB5815NAZJXNJH9EYGQ5DT

Run Details

Duration:
39.6s
Cost:
$0.003246
Provider:
OpenAI

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 hammered the cobblestones as Detective Marlowe arrived at midnight. A crowd clustered behind yellow tape, breathing nervous, damp air. On the riverbank, a body lay pale beneath the gaslight. Her dress was torn, pearl necklace buried in cold mud. No footprints led directly away, only a smudge of crimson. Detective Marlowe crouched, eyes narrow, calculating the impossible sequence backwards. The coroner lit a cigarette, studying the small, precise wound. Someone whispered the name 'Evelyn' and the crowd inhaled sharply. Marlowe remembered a photograph: Evelyn smiling at a summer party. There would be lies, alibis, and secrets buried under wallpaper.
created_at"2026-02-16T13:45:48.886133+00:00" 2/16/2026, 1:45:48 PM
model"openai/gpt-5-mini-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3691
moderation_latency(null)
generation_time39553
tokens_prompt46
tokens_completion784
native_tokens_prompt41
native_tokens_completion1618
native_tokens_completion_images0
native_tokens_reasoning1408
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"
usage0.00324625
router(null)
provider_responses
0
id"resp_04609c13a438d28f0169931f64790081979a86232d3a0b540e"
status200
is_byokfalse
latency138
endpoint_id"c4f66d01-20b0-4c27-a225-438ea22fda43"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-mini-2025-08-07"
api_type"completions"
id"gen-1771249508-SzJDOWyOnjeMvuTxsuI6"
upstream_id"resp_04609c13a438d28f0169931f64790081979a86232d3a0b540e"
total_cost0.00324625
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
010
110
210
310
410
510
610
710
810
910