Run: 2026-02-25-01KJ950GQGBFD9NT8KQJ1SE4DJ

Run Details

Duration:
4.8s
Cost:
$0.000455
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
67.21% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The ancient grandfather clock in the deserted hall had stopped precisely at midnight, marking an ominous end to the stormy evening. Detective Miles Corbin, his trench coat damp from the persistent rain, cautiously pushed open the grand oak door to the library. A single, ornate candelabra lay shattered near the victim, its wax pooling like tears on the expensive, blood-stained velvet carpet. Lord Harrington, patriarch of the infamous family fortune, slumped grotesquely in his favourite armchair, his life cruelly extinguished without a sound. His usually impeccable silver hair was matted and dark, hinting at a violent struggle that had clearly preceded his untimely demise. A peculiar, single red rose rested upon his chest, its thorns unusually sharp, perhaps meant as a final, defiant, chilling message.
created_at"2026-02-25T01:00:59.509Z" 2/25/2026, 1:00:59 AM
model"google/gemini-2.5-flash-lite"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1023
moderation_latency(null)
generation_time4736
tokens_prompt46
tokens_completion641
native_tokens_prompt38
native_tokens_completion1128
native_tokens_completion_images0
native_tokens_reasoning974
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"
usage0.000455
router(null)
provider_responses
0
endpoint_id"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byokfalse
latency1023
model_permaslug"google/gemini-2.5-flash-lite"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981259-BRgjE4XtTJAeaUnR6K3c"
upstream_id(null)
total_cost0.000455
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
67.21% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
021
121
220
321
421
521