Run: 2026-07-25-01KYD50G0QXFETY7NPR4DR9SH3

Run Details

Duration:
7.9s
Cost:
$0.005901
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 Marlow's Bookshop where Detective Elara Quinn found Mr. Finch dead among scattered first editions tonight. He lay sprawled beneath the ladder, spectacles cracked, holding a bloodstained receipt dated yesterday evening that nobody should ever possess. Elara knelt carefully, noting ink under his fingernails and faint vanilla perfume lingering in cold air despite open windows tonight. The shopkeeper's wife, Mrs. Abernathy, sobbed quietly near the register, insisting Finch had no enemies whatsoever until this terrible midnight. Outside, lightning revealed a fresh muddy footprint leading away from the back door toward darkness where someone still waited silently.
created_at"2026-07-25T17:26:18.398Z" 7/25/2026, 5:26:18 PM
model"meta/muse-spark-1.1-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency7290
moderation_latency(null)
generation_time7871
tokens_prompt46
tokens_completion179
native_tokens_prompt199
native_tokens_completion1330
native_tokens_completion_images0
native_tokens_reasoning1178
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"
usage0.00590125
router(null)
provider_responses
0
endpoint_id"b2b9f6f9-8880-41c1-bd0c-867650fd5238"
id"resp_6a64f1ba1ce2134ddc6f4ea7"
is_byokfalse
latency270
model_permaslug"meta/muse-spark-1.1-20260709"
provider_name"Meta"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1785000378-bq0UyL2KrvruI7nEzKdY"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1785000378-6jE6eQS18rvc8VbUcx5u"
upstream_id"resp_6a64f1ba1ce2134ddc6f4ea7"
total_cost0.00590125
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
420