Run: 2026-07-25-01KYD5FPZXARHF3Q22X6RCJS4R

Run Details

Duration:
13.8s
Cost:
$0.010746
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
The rain hammered Blackwood Manor's ancient roof as Detective Ellis arrived, sensing something terribly wrong waited inside tonight for him. Butler Jenkins opened the massive oak door, his hands trembling violently around a silver candlestick holder that dripped wax everywhere. He whispered, 'She's still in the library, sir, exactly as we found her this morning with blood pooling nearby silently. Ellis stepped past him, following bloody footprints across Persian rugs toward heavy velvet curtains drawn tightly shut against afternoon light. Lady Blackwood lay sprawled across her desk, one manicured hand clutching a torn bloodied letter that nobody claimed to recognize. Her eyes stared blankly at the ceiling, reflecting chandelier light that revealed no obvious murder weapon nearby anywhere in sight. Ellis noticed three teacups steaming on the sideboard, suggesting visitors had departed moments before catastrophe struck unexpectedly last night somehow. Then he realized the footprints leading away from the body belonged to someone still hiding inside the house right now.
created_at"2026-07-25T17:34:37.06Z" 7/25/2026, 5:34:37 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency12731
moderation_latency(null)
generation_time13710
tokens_prompt46
tokens_completion275
native_tokens_prompt199
native_tokens_completion2470
native_tokens_completion_images0
native_tokens_reasoning2248
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"
usage0.01074625
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f3ad355091d7152c4c4a"
is_byokfalse
latency362
model_permaslug"meta/muse-spark-1.1-20260709"
provider_name"Meta"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1785000877-I1ePIorws1T8jd982Vdq"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785000877-u4eYbx9ZDZdAmHFFmJyi"
upstream_id"resp_6a64f3ad355091d7152c4c4a"
total_cost0.01074625
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
020
120
220
320
420
520
620
720