Run: 2026-02-25-01KJ94XN71QCD528JKTCPJCC7Z

Run Details

Duration:
5.6s
Cost:
$0.000628
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
13.17% 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 old manor house loomed silently under a sky choked with bruised, swirling clouds presaging a storm. Detective Harding's polished shoe crunched on the gravel drive, its worn leather reflecting the faint, dying light. A single, uncannily bright light spilled from an upstairs window, a stark beacon in the encroaching darkness. Constable Davies had called him, his voice tight with an urgency that chilled Harding to the very bone. The grand oak door stood ajar, revealing a sliver of the dimly lit, opulent foyer within its frame. An unsettling silence hung heavy in the air, thicker than the dust motes dancing in the lamp’s faint glow. Near the grand staircase, a dark, irregular stain marred the Persian rug, impossibly vibrant against the aged threads. Lord Ashworth lay sprawled awkwardly, his silk dressing gown splayed open, revealing a shocking, final stillness. A peculiar, antique letter opener rested beside his outstretched hand, its ornate handle glinting ominously in the gloom. Harding knelt slowly, his trained eyes scanning every detail, absorbing the scene before a single word was spoken.
created_at"2026-02-25T00:59:25.802Z" 2/25/2026, 12:59:25 AM
model"google/gemini-2.5-flash-lite"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1267
moderation_latency(null)
generation_time5551
tokens_prompt46
tokens_completion896
native_tokens_prompt38
native_tokens_completion1560
native_tokens_completion_images0
native_tokens_reasoning1341
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"
usage0.0006278
router(null)
provider_responses
0
endpoint_id"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byokfalse
latency1267
model_permaslug"google/gemini-2.5-flash-lite"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981165-vxtSRpZh59BnOOSjafbT"
upstream_id(null)
total_cost0.0006278
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
13.17% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
017
117
217
318
418
519
618
716
818
918