Run: 2026-09-03-01M1K4SDZSHGXXMMXB4115FCC0

Run Details

Duration:
15.0s
Cost:
$0.009385
Provider:
Meta

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
Rain hammered the cobblestones outside Marlowe House as Detective Crowe arrived exactly at midnight expecting routine burglary investigation call alone. Instead the butler opened the door, pale and trembling, whispering that Lord Pemberton lay dead upstairs in the library tonight. Crowe followed silently upstairs, noting muddy footprints staining the carpet despite supposedly locked windows and bolted doors inside silent mansion. The victim sprawled across his mahogany desk, eyes wide open, clutching a torn playing card soaked in blood still warm. The fireplace crackled nearby, illuminating three nervous guests already assembled, each insisting they heard nothing unusual tonight before midnight struck.
created_at"2026-09-03T08:04:59.008Z" 9/3/2026, 8:04:59 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3900
moderation_latency(null)
generation_time14957
tokens_prompt46
tokens_completion250
native_tokens_prompt42
native_tokens_completion2196
native_tokens_completion_images0
native_tokens_reasoning1985
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"auto"
usage0.0093855
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422699-Y0jo09d3KyRdOEMaEcH4"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422699-qtneucdeg7jNee83Q2f3"
upstream_id"resp_6a992a2b3161253240124c60"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992a2b3161253240124c60"
is_byokfalse
latency431
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.0093855
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420