Run: 2026-09-03-01M1K4Z52K9QDTFMG8Y3BCD22J

Run Details

Duration:
29.4s
Cost:
$0.005888
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
Rain hammered empty streets outside Blackwood Manor that cold night. Detective Mara Ellis pushed open the heavy oak door slowly. Inside, chandelier light flickered above a silent cold marble floor. Lord Ashford lay sprawled beneath stairs, blood pooling outward slowly. His shocked guests stood frozen, each hiding some terrible secret.
created_at"2026-09-03T08:08:06.489Z" 9/3/2026, 8:08:06 AM
model"meta/muse-spark-1.3-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency10121
moderation_latency(null)
generation_time29354
tokens_prompt46
tokens_completion124
native_tokens_prompt42
native_tokens_completion1373
native_tokens_completion_images0
native_tokens_reasoning1257
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"
usage0.00588775
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788422886-sW4fbS3uewxWXYNgfYpa"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788422886-r87Nyf2oYSaya8WsElTi"
upstream_id"resp_6a992aeb947b54ced73d42ab"
provider_responses
0
endpoint_id"cf4f1b4e-1719-4b65-9111-7dd7635e5a2f"
id"resp_6a992aeb947b54ced73d42ab"
is_byokfalse
latency5353
model_permaslug"meta/muse-spark-1.3-20260902"
provider_name"Meta"
status200
total_cost0.00588775
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
sentences5
wordCounts
010
110
210
310
410