Run: 2026-07-25-01KYD6MDBJCGF6FMSYRK27BA9R

Run Details

Duration:
5.8s
Cost:
$0.004418
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
The rain hammered the abandoned lighthouse windows relentlessly tonight somehow. Detective Mara Quinn arrived precisely seven minutes after midnight alone. The victim lay sprawled beneath the flickering emergency light fixture. Blood pooled darkly around his expensive Italian leather shoes still. Someone had arranged seashells in a perfect circle nearby deliberately. Mara noticed the dead man's left hand clutched something tightly. It was her missing sister's silver locket, tarnished and cold. Outside, the lighthouse beam finally died, swallowing everything completely dark.
created_at"2026-07-25T17:54:39.608Z" 7/25/2026, 5:54:39 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5283
moderation_latency(null)
generation_time5762
tokens_prompt46
tokens_completion149
native_tokens_prompt199
native_tokens_completion981
native_tokens_completion_images0
native_tokens_reasoning858
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"
usage0.004418
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f8601864b9aeba00498a"
is_byokfalse
latency476
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-1785002079-YQWASM7RP8aIBElsp6HX"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785002079-dN3l6i10QRH1zJq3H561"
upstream_id"resp_6a64f8601864b9aeba00498a"
total_cost0.004418
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
sentences8
wordCounts
010
110
210
310
410
510
610
710