Run: 2026-03-11-01KKFG53W3FWWPX4WA4J2CFMEZ

Run Details

Duration:
1m 13s
Cost:
$0.006155
Provider:
Seed

Evaluation summary

Score Evaluator
Details Link
100.00% 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 rain lashed against stained-glass windows while eight guests gathered beside the fading embers of the manor’s great marble hearth. A crash echoed from the winged third floor, breaking the tense lull that had clung to their quiet wine-fogged breaths. Their host Arthur Voss had failed to return from his brief trip to fetch rare aged cognac thirty minutes prior. Young Lila, Arthur’s art dealer colleague, volunteered to climb the curved staircase that led to the third floor’s locked suites. Her sharp, terrified scream split the air moments later, spurring the others to race up the winding creaking wooden stairs. They found Lila huddled behind the busted study door, Arthur’s still-warm body trapped under a heavy cast-iron fireplace andiron block. The study’s heavy iron shutters were bolted from inside, making it a seemingly impossible sealed room murder without a trace.
created_at"2026-03-11T22:26:52.944Z" 3/11/2026, 10:26:52 PM
model"bytedance-seed/seed-2.0-lite-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency962
moderation_latency(null)
generation_time73039
tokens_prompt46
tokens_completion1953
native_tokens_prompt85
native_tokens_completion3067
native_tokens_completion_images(null)
native_tokens_reasoning2878
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"
usage0.00615525
router(null)
provider_responses
0
endpoint_id"bf1a3473-7a0a-46d3-aaa5-adb8f876a697"
id"02177326801362607b4b942199433a510c68da6d01b36ec2f1423"
is_byokfalse
latency962
model_permaslug"bytedance-seed/seed-2.0-lite-20260309"
provider_name"Seed"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773268012-aecRUxpr8Xy53ZmGyy9T"
upstream_id"02177326801362607b4b942199433a510c68da6d01b36ec2f1423"
total_cost0.00615525
cache_discount(null)
upstream_inference_cost0
provider_name"Seed"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences7
wordCounts
020
120
220
320
420
520
620