Run: 2026-11-11-01M75451QBQSTGEYMQ9781A2WW

Run Details

Duration:
3.3s
Cost:
$0.001065
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
When detective Mara Ellison arrived at dawn, the isolated manor house already stood silent, windows shattered, and doors wide open. Rain had soaked the marble steps, yet fresh footprints led from the front hall toward the darkened library beyond them. Inside, Lord Edmund Blackwood lay motionless beside his old desk, a single silver letter opener buried deeply in his chest. His wife Clara trembled nearby, clutching bloody gloves, whispering that she never heard screams during the long dark stormy night. Mara noticed the window latch untouched, the fire still warm, and three muddy glasses waiting empty upon the polished desk. Somewhere upstairs, a floorboard creaked very softly twice, suggesting the killer might still be hiding silently within this house tonight.
created_at"2026-11-11T10:58:39.99Z" 11/11/2026, 10:58:39 AM
model"meta/muse-ember-20261109"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1420
moderation_latency(null)
generation_time3216
tokens_prompt46
tokens_completion244
native_tokens_prompt43
native_tokens_completion2122
native_tokens_completion_images0
native_tokens_reasoning1925
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"default"
usage0.0010653
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.2; linux; x64))"
http_referer(null)
request_id"req-1794394719-V8ipafYlBqhajF80ZtDR"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1794394719-U8J0GZzKDvdCHUCt5tXn"
upstream_id"resp_6af44a60ed54f3138fa843a8"
provider_responses
0
endpoint_id"ea8469c2-ddf8-4985-8cf2-f5dc7e63e14c"
id"resp_6af44a60ed54f3138fa843a8"
is_byokfalse
latency469
model_permaslug"meta/muse-ember-20261109"
provider_name"Meta"
status200
total_cost0.0010653
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