Run: 2026-09-03-01M1K4VV2YSMQMAQ9CAR9JSRM5

Run Details

Model:
Muse Spark 1.3 (Reasoning, Medium)
Test:
N-Length Sentences
Scenario:
Write sentences with 20 words each
Duration:
24.8s
Cost:
$0.007758
Provider:
Meta

Evaluation summary

Score Evaluator
Details Link
75.00% 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
Rain hammered the old lighthouse windows as Detective Mara Quinn arrived precisely at midnight for urgent mysterious business last night. Inside, candlelight flickered across worried faces while wealthy host Jonathan Blackwood lay motionless beside shattered crystal wineglass fragments on floor. Quinn knelt carefully beside cold body, noting faint bitter almond scent lingering heavily around twisted lips and clenched hands tonight. 'Nobody leaves this storm battered lighthouse until I identify which one of you clever guests committed brutal cold murder tonight.' Thunder shook ancient stone walls as six nervous suspects exchanged guilty glances, each hiding dangerous secrets behind polite forced smiles.
created_at"2026-09-03T08:06:17.958Z" 9/3/2026, 8:06:17 AM
model"meta/muse-spark-1.3-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5831
moderation_latency(null)
generation_time24747
tokens_prompt46
tokens_completion213
native_tokens_prompt42
native_tokens_completion1813
native_tokens_completion_images0
native_tokens_reasoning1653
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"
usage0.00775775
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422777-I3r6AXGSCfbURg5N19Yn"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422777-DR1xqrE4V18LBDCobozz"
upstream_id"resp_6a992a7a0d1de44a5f554444"
provider_responses
0
endpoint_id"cf4f1b4e-1719-4b65-9111-7dd7635e5a2f"
id"resp_6a992a7a0d1de44a5f554444"
is_byokfalse
latency651
model_permaslug"meta/muse-spark-1.3-20260902"
provider_name"Meta"
status200
total_cost0.00775775
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
75.00% Matches word count n/a
neededCleanfalse
sentences4
wordCounts
020
120
220
340