Run: 2026-09-03-01M1K5NVE7ZQC1PQ95ZTV7XEYN

Run Details

Duration:
8.3s
Cost:
$0.008327
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 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Detective Mara Quinn arrived precisely at midnight, cold and exhausted. The lighthouse door hung open, creaking ominously against violent wind. Inside, the victim lay sprawled beneath the shattered Fresnel lens. Blood pooled darkly around his immaculate expensive white dinner jacket. His right hand clutched a torn yellowed photograph very tightly. Mara noticed footprints leading toward the locked upstairs bedroom window. Someone had clearly wanted this murder to look perfectly accidental. But the second set of footprints told another chilling story.
created_at"2026-09-03T08:20:30.285Z" 9/3/2026, 8:20:30 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8150
moderation_latency(null)
generation_time8301
tokens_prompt46
tokens_completion141
native_tokens_prompt42
native_tokens_completion1956
native_tokens_completion_images0
native_tokens_reasoning1841
native_tokens_cached35
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"
usage0.008327
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423630-EpztPvNKOpMFydaPCOpx"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423630-2yEG6FqVq2gARczg4LqG"
upstream_id"resp_6a992dce5d1862a97af84d6e"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992dce5d1862a97af84d6e"
is_byokfalse
latency374
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.008327
cache_discount0.0000385
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
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710