Run: 2026-02-25-01KJ95H7A8BZSDEHY16SB4DR47

Run Details

Duration:
4.9s
Cost:
$0.000450
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
52.19% 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 chimed midnight, its mournful resonance echoing through the deserted, dusty halls of Blackwood Manor. Detective Miles Corbin, draped in his usual trench coat, tiptoed cautiously across the Persian rug towards the darkened study door. A faint, metallic scent, distinctly out of place, pricked his nostrils as he slowly pushed the heavy oak inward. The flickering gaslight cast long, dancing shadows across the room, grotesquely distorting familiar objects into monstrous shapes before his eyes. There upon the ornate mahogany desk, slumped amidst scattered papers, lay the lifeless form of Lord Harrington, terribly still. His eyes, wide with a silent, unseeing terror, stared blankly at the intricately carved cherubs adorning the ceiling above. A single crimson stain bloomed upon the front of his crisp, white evening shirt, a starkly obvious wound now. No signs of struggle were immediately apparent, making the sudden, violent end profoundly puzzling for the seasoned detective. The room itself held its breath, guarding secrets whispered only within its opulent, unforgiving, silent walls.
created_at"2026-02-25T01:10:06.927Z" 2/25/2026, 1:10:06 AM
model"google/gemini-2.5-flash-lite"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency988
moderation_latency(null)
generation_time4868
tokens_prompt46
tokens_completion1058
native_tokens_prompt38
native_tokens_completion1116
native_tokens_completion_images0
native_tokens_reasoning895
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"
usage0.0004502
router(null)
provider_responses
0
endpoint_id"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byokfalse
latency988
model_permaslug"google/gemini-2.5-flash-lite"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981806-0POMr3SNiAgJMYUxBYUu"
upstream_id(null)
total_cost0.0004502
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
52.19% Matches word count n/a
neededCleanfalse
sentences9
wordCounts
018
120
219
320
419
519
619
718
816