Run: 2026-07-25-01KYD6QQHHCNWTNB93HZGAG7TV

Run Details

Model:
Muse Spark 1.1 (Reasoning, Minimal)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
7.1s
Cost:
$0.004962
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 arrived at Blackwood Manor precisely as midnight rain hammered crumbling gothic gargoyles overhead silently during oppressive English summer. The butler, pale and trembling, led her through corridors reeking of beeswax, guilt, and cheap lavender perfume toward the library. Lord Alistair lay sprawled across Persian carpet, a silver letter opener protruding from his throat grotesquely while candles flickered indifferently. Seven dinner guests lingered nearby, each clutching wine glasses too tightly while avoiding eye contact entirely beneath chandelier's harsh judgment. Marlowe noticed three details instantly: untouched brandy, muddy footprints leading nowhere, and a smirk nobody could explain convincingly tonight here.
created_at"2026-07-25T17:56:28.346Z" 7/25/2026, 5:56:28 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6094
moderation_latency(null)
generation_time6960
tokens_prompt46
tokens_completion189
native_tokens_prompt199
native_tokens_completion1109
native_tokens_completion_images0
native_tokens_reasoning945
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"
usage0.004962
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f8cd23e42502db844761"
is_byokfalse
latency928
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-1785002188-chVM0aZUwf8cqTx4r0pP"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785002188-cM3t0vNsUXW3wW3gXtKr"
upstream_id"resp_6a64f8cd23e42502db844761"
total_cost0.004962
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