Run: 2026-02-25-01KJ94JWWKRTK72E2A56BM9JPS

Run Details

Duration:
6.8s
Cost:
$0.003964
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
89.33% 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 lashed hard against the precinct window, drumming loudly. Detective Miles Harding usually worked through these late night hours. Tonight's urgent call felt different, strangely cold, truly unsettling. His old car sputtered, struggling down the flooded city street. The address finally appeared, an imposing old Victorian townhouse. Yellow crime tape already surrounded the perimeter, flapping loudly. Uniformed officers huddled near the porch, looking quite grim-faced. Sergeant Miller met him quickly, rain dripping from his hat. "Another one, boss," Miller said, voice heavy with concern. Miles nodded slowly, pushing open the imposing heavy front door. The foyer was grand, but smelled distinctly of something metallic. A single spotlight illuminated the victim, lying very, very still. Lady Eleanor Vance lay sprawled upon the priceless marble floor. Her silken nightgown stained a deep, horrifying crimson color now. A silver letter opener rested beside her, glinting most wickedly. Miles felt the familiar icy dread grip his weary heart. Another ghost joined the countless others in this dark, cold city.
created_at"2026-02-25T00:53:33.208Z" 2/25/2026, 12:53:33 AM
model"google/gemini-2.5-flash"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1399
moderation_latency(null)
generation_time6729
tokens_prompt46
tokens_completion820
native_tokens_prompt38
native_tokens_completion1581
native_tokens_completion_images0
native_tokens_reasoning1374
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"STOP"
usage0.0039639
router(null)
provider_responses
0
endpoint_id"16c01e26-9b91-4d22-b487-ed35634b017d"
is_byokfalse
latency1398
model_permaslug"google/gemini-2.5-flash"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771980813-LcK2U9F5TpPEB8tOnAm1"
upstream_id(null)
total_cost0.0039639
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
89.33% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
09
110
29
310
49
59
69
710
89
910
1010
1110
1210
1310
1410
1510
1611