Run: 2026-09-03-01M1K5JECWZQ136C68BTD0DWHH

Run Details

Duration:
9.2s
Cost:
$0.009904
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 cobblestones outside Marlowe's bookstore where Detective Harlan arrived precisely after midnight alone expecting another quiet uneventful night. The owner, Elias Marlowe, lay sprawled between fallen shelves, a brass letter opener buried deeply inside his chest still bleeding. Harlan noticed the front door remained locked from inside, suggesting the murderer had not entered through conventional means tonight somehow. Beside the victim's outstretched hand rested a single torn page, ink smeared despite desperate attempts at preservation from careless fingers. Harlan crouched carefully, reading four hastily scrawled words that chilled his blood more than winter's relentless wind ever could possibly. The message read simply, 'He never left the bookstore,' though every shelf suggested otherwise with chilling clarity tonight for detectives.
created_at"2026-09-03T08:18:38.626Z" 9/3/2026, 8:18:38 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8694
moderation_latency(null)
generation_time9138
tokens_prompt46
tokens_completion219
native_tokens_prompt42
native_tokens_completion2318
native_tokens_completion_images0
native_tokens_reasoning2142
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"
usage0.009904
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423518-Lpvd8VaZ7kS0Hq1ULgAw"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423518-EMlQng10ivkCvmzVzUA6"
upstream_id"resp_6a992d5e877881a65f0a4b65"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992d5e877881a65f0a4b65"
is_byokfalse
latency327
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.009904
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