Run: 2026-10-13-01M4TC5QNGJZ6Z71CW9Z6KQQTS

Run Details

Duration:
8.3s
Cost:
$0.030468
Provider:
Meta

Evaluation summary

Score Evaluator
Details Link
80.00% 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
The rain hammered windows of Blackwood Manor while Detective Elena Marsh stared at the body sprawled across the library floor. Blood pooled beneath Lord Ashworth's head, staining the Persian rug crimson, and nobody in the household dared to breathe aloud. She noticed the overturned teacup, the missing letter opener, and the faint smell of almonds lingering in the cold air. Outside, thunder rolled across the moors as the grandfather clock struck midnight and every suspect gathered nervously in the hall. "Someone here is lying," Elena whispered, studying their pale faces, "and I intend to discover exactly who before morning comes." The drawing room door suddenly creaked open, revealing an empty corridor and fresh muddy footprints leading toward the dark garden.
created_at"2026-10-13T10:15:48.667Z" 10/13/2026, 10:15:48 AM
model"meta/muse-wonder-20261012"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2544
moderation_latency(null)
generation_time8225
tokens_prompt46
tokens_completion229
native_tokens_prompt42
native_tokens_completion1515
native_tokens_completion_images0
native_tokens_reasoning1317
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"
usage0.030468
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791886548-Qdrja9w53p9HDPTsHoky"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791886548-nXUJ5t4wIfboWRWV0V1y"
upstream_id"resp_6ace04d5615f9ecc05024a04"
provider_responses
0
endpoint_id"1232618d-ebfe-4338-9b68-d9127a57c8dd"
id"resp_6ace04d5615f9ecc05024a04"
is_byokfalse
latency770
model_permaslug"meta/muse-wonder-20261012"
provider_name"Meta"
status200
total_cost0.030468
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
80.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
120
220
320
440