Run: 2026-07-25-01KYD4ZKJZBW34YBB48CF916XB

Run Details

Model:
Muse Spark 1.1 (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
6.8s
Cost:
$0.004728
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 Maya Sharma entered the abandoned lighthouse at midnight, ignoring waves crashing violently against jagged coastal rocks below relentlessly tonight. The victim, renowned architect Julian Crowe, lay sprawled beneath the lantern, throat slit with surgical, chilling precision amidst flickering shadows. Beside his clenched fist rested a bloodstained blueprint, its ink smudged, revealing a hidden room nobody remembered within this lighthouse. Maya crouched slowly, photographing everything, when she heard footsteps echoing softly from the spiral staircase above despite presumed total isolation.
created_at"2026-07-25T17:25:49.289Z" 7/25/2026, 5:25:49 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6225
moderation_latency(null)
generation_time6742
tokens_prompt46
tokens_completion154
native_tokens_prompt199
native_tokens_completion1054
native_tokens_completion_images0
native_tokens_reasoning930
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"
usage0.00472825
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f19d0f5e6893ca1043f4"
is_byokfalse
latency332
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-1785000349-yxD5kRBaOiicb2yUJdQe"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785000349-Y1ytLTwjQXrF8brq4GPd"
upstream_id"resp_6a64f19d0f5e6893ca1043f4"
total_cost0.00472825
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
sentences4
wordCounts
020
120
220
320