Run: 2026-02-16-01KHKARA767T88VAPWQQ96SFXB

Run Details

Duration:
39.2s
Cost:
$0.024601
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 stitched the harbor in silver, needles threading night's hush. Sirens braided distant streets, then strangled themselves into uneasy silence. Detective Mora unlocked Harrow House, rust scraping like reluctant matches. The foyer smelled of lilies disguising something heavier, recently disturbed. Footprints glittered wetly across marble, a hesitant choreography towards darkness. On the staircase landing, a pocketwatch ticked without a wrist. Mora clicked her pen, the sound defiant against layered quiet. He lay beneath the portrait, eyes open, considering nothing now. Blood made a slow compass, pointing north, pointing somewhere upstairs. The portrait's subject, his grandmother, watched sternly, hands forever folded. In her painted lap, an identical pocketwatch glittered like testimony. Lightning pasted windowpanes white; shadows flinched and rearranged their alibis. A neighbor knocked once, stopped, then whispered apologies to nobody. Mora knelt, noticing varnish under nails, and lily pollen streaks. Upstairs, a music box chimed two notes, then reconsidered breathing. The phone still dangled, swinging softly, confessing to no one. On the table, invitations promised charity; the knife promised accuracy. Rain gathered courage outside; inside, secrets arranged careful disguises slowly. Mora tallied rhythms: ticking watch, fading sirens, steady heartbeat, motive. Somewhere deeper, a lock sighed, as though finally remembering mouths.
created_at"2026-02-16T13:38:44.330731+00:00" 2/16/2026, 1:38:44 PM
model"openai/gpt-5-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8783
moderation_latency(null)
generation_time38908
tokens_prompt46
tokens_completion1107
native_tokens_prompt41
native_tokens_completion2455
native_tokens_completion_images0
native_tokens_reasoning2112
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"
usage0.02460125
router(null)
provider_responses
0
id"resp_060fe19a503832bb0169931dbcbb888195a523d80ae74f57d3"
status200
is_byokfalse
latency168
endpoint_id"7c2f859a-7890-4e8e-b1de-1cd1c0a800b4"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-2025-08-07"
api_type"completions"
id"gen-1771249084-iUpWJuCyc2XuvThIdDrP"
upstream_id"resp_060fe19a503832bb0169931dbcbb888195a523d80ae74f57d3"
total_cost0.02460125
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences20
wordCounts
010
110
210
310
410
510
610
710
810
910
1010
1110
1210
1310
1410
1510
1610
1710
1810
1910