Run: 2026-02-25-01KJ94XDD7D6HHAE4166XDPW26

Run Details

Duration:
6.2s
Cost:
$0.000488
Provider:
Google AI Studio

Evaluation summary

Score Evaluator
Details Link
49.21% 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 old manor house stood silhouetted against the bruised, twilight sky, its imposing structure concealing dark secrets. Rain began to lash against the tall gothic windows, each drop a mournful whisper through the silent chambers. Inside, a solitary lamp cast long, dancing shadows across the opulent library, illuminating dust motes in the stagnant air. Lord Ashworth’s favorite armchair was overturned near the grand fireplace, its mahogany legs starkly visible against the Persian rug. A faint, metallic tang hung in the air, a sickening aroma suggesting something terrible had occurred within these walls. Detective Miles Corbin, summoned by a frantic butler, stepped cautiously through the heavy oak doors, his gaze sharp and searching. He noted the unnatural stillness pervading the room, a silence far too profound for any typical evening’s quietude. A single, expensive letter opener lay carelessly discarded beside a pool of dark, viscous liquid seeping into the wood. The faint scent of expensive brandy mingled strangely with the sharper, more unsettling odor of spilled and irreversible death. Corbin’s experienced eyes scanned the room, seeking an answer to the unspoken question hanging heavy in the oppressive atmosphere.
created_at"2026-02-25T00:59:17.806Z" 2/25/2026, 12:59:17 AM
model"google/gemini-2.5-flash-lite"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1289
moderation_latency(null)
generation_time6205
tokens_prompt46
tokens_completion1541
native_tokens_prompt38
native_tokens_completion1211
native_tokens_completion_images0
native_tokens_reasoning986
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"
usage0.0004882
router(null)
provider_responses
0
endpoint_id"ce839073-aa24-4f29-8358-15b319bd05ec"
is_byokfalse
latency1289
model_permaslug"google/gemini-2.5-flash-lite"
provider_name"Google AI Studio"
status200
api_type"completions"
id"gen-1771981157-EXBMb0qUlkGmg7oxLwNV"
upstream_id(null)
total_cost0.0004882
cache_discount(null)
upstream_inference_cost0
provider_name"Google AI Studio"

Evaluation details

Result Evaluator Details Meta Data
49.21% Matches word count n/a
neededCleanfalse
sentences10
wordCounts
017
118
219
319
419
520
618
719
819
919