Run: 2026-03-12-01KKFNK927XVC1GVY37NME8ZFG

Run Details

Duration:
3.7s
Cost:
$0.000000
Provider:
Stealth

Evaluation summary

Score Evaluator
Details Link
33.71% 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
Rain slicked the cobblestones outside The Blue Canary Jazz Club, where Detective Aris Thorne found his first body. The victim was a celebrated pianist, known for melancholy melodies, now slumped over his own grand piano in death. Thorne noted the single, precise gunshot wound, the absence of struggle, and the cryptic, crimson note clutched in the cold hand. The message read only: "The melody was stolen. The silence begins now." His gaze lifted from the corpse to the club's lone, terrified witness: the singer, her microphone still humming a faint, unresolved chord.
created_at"2026-03-12T00:01:59.897Z" 3/12/2026, 12:01:59 AM
model"openrouter/healer-alpha"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency555
moderation_latency(null)
generation_time3587
tokens_prompt46
tokens_completion345
native_tokens_prompt2119
native_tokens_completion287
native_tokens_completion_images(null)
native_tokens_reasoning202
native_tokens_cached2117
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
router(null)
provider_responses(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773273719-JQLnYveqtkCFU8K2SEQj"
upstream_id"gen-1773273719-JQLnYveqtkCFU8K2SEQj"
total_cost0
cache_discount(null)
upstream_inference_cost0
provider_name"Stealth"

Evaluation details

Result Evaluator Details Meta Data
33.71% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
018
119
221
334