Run: 2026-09-03-01M1K51CZH6K4ZDW84D413QRAK

Run Details

Duration:
33.6s
Cost:
$0.010397
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
Rain hammered the old lighthouse windows as Detective Mara Quinn arrived precisely at midnight for urgent mysterious call today alone. Innkeeper Thomas Bell lay sprawled across cold marble floor, silver candlestick still clutched tightly within his lifeless pale right hand. Eight frightened guests stood silently around flickering fireplace, each avoiding eye contact while thunder echoed loudly through dark empty hallways. Quinn noticed broken clock stopped exactly at midnight, its shattered glass scattered deliberately across dusty wooden library table last night. Someone whispered that storm had cut all phone lines, leaving isolated mansion vulnerable until morning ferry could finally arrive tomorrow. She pulled notebook from wet coat pocket, knowing one guest lied because locked door showed no forced entry whatsoever tonight.
created_at"2026-09-03T08:09:20.122Z" 9/3/2026, 8:09:20 AM
model"meta/muse-spark-1.3-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5430
moderation_latency(null)
generation_time33582
tokens_prompt46
tokens_completion280
native_tokens_prompt42
native_tokens_completion2434
native_tokens_completion_images0
native_tokens_reasoning2219
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"
usage0.010397
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422960-WkWMvNGcujdRV0xhicJ5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422960-SyFcqzzVTVcEWA982yXG"
upstream_id"resp_6a992b3020855fb4a25d4cc9"
provider_responses
0
endpoint_id"cf4f1b4e-1719-4b65-9111-7dd7635e5a2f"
id"resp_6a992b3020855fb4a25d4cc9"
is_byokfalse
latency941
model_permaslug"meta/muse-spark-1.3-20260902"
provider_name"Meta"
status200
total_cost0.010397
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
100.00% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
020
120
220
320
420
520