Run: 2026-09-03-01M1K4RDKEJPP2JYQBDTTM8CSG

Run Details

Duration:
15.5s
Cost:
$0.011098
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 arrived as the midnight rain hammered rooftops relentlessly. The mansion doors stood open, inviting cold wind inside silently. Inside, Lord Ashford lay sprawled beneath the shattered crystal chandelier. Blood pooled darkly around his outstretched, pale right hand still. No footprints marked the dusty marble floor surrounding him completely. Mara noticed the window locked tightly from the inside securely. A single white feather rested upon his silent motionless chest. The butler whispered, claiming nobody had entered that library tonight. Mara smiled grimly, knowing the feather told another story entirely.
created_at"2026-09-03T08:04:25.844Z" 9/3/2026, 8:04:25 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2655
moderation_latency(null)
generation_time15480
tokens_prompt46
tokens_completion216
native_tokens_prompt42
native_tokens_completion2599
native_tokens_completion_images0
native_tokens_reasoning2415
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"
usage0.01109825
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422665-DR4UQFBBvJwN7NPt4NbZ"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422665-V3h4RnSqby711aN7QA6D"
upstream_id"resp_6a992a0af15b705bcea04137"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992a0af15b705bcea04137"
is_byokfalse
latency399
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.01109825
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
sentences9
wordCounts
010
110
210
310
410
510
610
710
810