Run: 2026-02-16-01KHKA29EAJC27H982PK50BF5M

Run Details

Duration:
38.0s
Cost:
$0.014991
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 needles the cobblestones as midnight tolls across Grayhaven tonight. Detective Mara Quinn waits beneath gaslight, watching shuttered windows breathe. The sea exhales rot, carrying whispers from the vagrant pier. Church bells falter, then choke, as footsteps hesitate behind her. She turns slowly, coat creaking, eyes slicing alleys for movement. Only the cat remains, tail scribbling questions over broken glass. Then a scream unspools, thin silk tearing across the harbor. Mara runs uphill, boots drumming warnings through ribs and rain. The mansion's lantern yawns open, swallowing her shadow like tide. On marble stairs lies Lord Halvern, throat red, puzzle begun.
created_at"2026-02-16T13:26:41.674408+00:00" 2/16/2026, 1:26:41 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency14021
moderation_latency(null)
generation_time37743
tokens_prompt46
tokens_completion950
native_tokens_prompt41
native_tokens_completion1494
native_tokens_completion_images0
native_tokens_reasoning1344
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"
usage0.01499125
router(null)
provider_responses
0
id"resp_06341aeb9e4f4abb0169931aeb07f0819581573122e719ecbf"
status200
is_byokfalse
latency158
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771248362-4Qh3NyK5bZuy6NDnYRGl"
upstream_id"resp_06341aeb9e4f4abb0169931aeb07f0819581573122e719ecbf"
total_cost0.01499125
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