Run: 2026-07-25-01KYD59EQ3W8H0FS7P9525RX33

Run Details

Duration:
5.8s
Cost:
$0.004171
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
Detective Marlowe entered the abandoned library precisely at midnight, noticing shattered glass scattered near mahogany shelves under pale moonlight tonight. The victim lay sprawled across ancient Chesterfield, silk cravat tightened cruelly, eyes frozen wide with terror and silent accusation lingered. Marlowe knelt carefully, observing faint fingerprints dusted upon brass candlestick, recently extinguished beside overturned brandy decanter still dripping amber liquid. A sharp draft slammed oak doors behind him, extinguishing his lantern, plunging room into suffocating gloom and distant footsteps echoed. He whispered urgently, someone else remains inside building, watching us murderously, waiting patiently for another opportunity tonight within these shadows.
created_at"2026-07-25T17:31:11.978Z" 7/25/2026, 5:31:11 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5102
moderation_latency(null)
generation_time5735
tokens_prompt46
tokens_completion194
native_tokens_prompt199
native_tokens_completion923
native_tokens_completion_images0
native_tokens_reasoning764
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"
usage0.0041715
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f2e0f2c06525e018404b"
is_byokfalse
latency453
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-1785000671-Cl8dPnzn2jdx1MXLdG20"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785000671-jJiV4Hwyuqx5M4qFLg9d"
upstream_id"resp_6a64f2e0f2c06525e018404b"
total_cost0.0041715
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
sentences5
wordCounts
020
120
220
320
420