Run: 2026-09-03-01M1K58RTTMQQTPV13E0AEXM8H

Run Details

Duration:
6.5s
Cost:
$0.005573
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the old mansion. Detective Hayes arrived precisely midnight. The victim lay motionless upstairs. Blood stained the Persian carpet. No footprints marked the hallway. Someone had locked every window. Yet murder undeniably happened here. Hayes noticed the missing candlestick. Its twin still burned brightly. Outside thunder concealed approaching footsteps.
created_at"2026-09-03T08:13:21.632Z" 9/3/2026, 8:13:21 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3094
moderation_latency(null)
generation_time6444
tokens_prompt46
tokens_completion133
native_tokens_prompt42
native_tokens_completion1299
native_tokens_completion_images0
native_tokens_reasoning1184
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"
usage0.00557325
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423201-g256oRSu7ToSnO12CkUM"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423201-OK6Jw1vBozmTQxKkHf6b"
upstream_id"resp_6a992c2151af478491d3443c"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992c2151af478491d3443c"
is_byokfalse
latency376
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.00557325
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
sentences10
wordCounts
05
15
25
35
45
55
65
75
85
95