Run: 2026-07-25-01KYD7WVY5KTECYTR0JPVGQ3N5

Run Details

Model:
Muse Spark 1.1 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
7.0s
Cost:
$0.004444
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 rain-slicked mansion at midnight, noticing the chandelier swaying above shattered glass below ominously in silence tonight. The victim lay sprawled across mahogany desk, clutching a bloodstained letter nobody else dared touch until police arrived later tonight. Outside thunder cracked loudly while suspicious footprints disappeared into garden, suggesting killer escaped through kitchen window during relentless stormy night. Marlowe recognized handwriting immediately, because letter had been written by his own estranged brother years ago before bitter betrayal happened. He slipped letter into pocket, knowing everyone present would become suspects before sunrise revealed truth about murder they all witnessed.
created_at"2026-07-25T18:16:45.259Z" 7/25/2026, 6:16:45 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6271
moderation_latency(null)
generation_time6929
tokens_prompt46
tokens_completion189
native_tokens_prompt199
native_tokens_completion987
native_tokens_completion_images0
native_tokens_reasoning840
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"
usage0.0044435
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64fd8ea85da8ec070542e3"
is_byokfalse
latency841
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-1785003405-x43lIY9omHli2xdolEdU"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785003405-272vkMCdFzwPf6fLA2QH"
upstream_id"resp_6a64fd8ea85da8ec070542e3"
total_cost0.0044435
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