Run: 2026-10-13-01M4TBW64G5FBS87G501RG8PYV

Run Details

Duration:
5.3s
Cost:
$0.022228
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
The rain hammered against the library windows while Detective Mara Ellison stared at the body slumped over the mahogany desk. A single silver letter opener protruded from his chest, and dark blood had pooled across the unfinished will beneath him. Outside, thunder rolled over Blackwood Manor as seven nervous guests waited in the hallway, each avoiding the others' accusing glances. Mara noticed the grandfather clock had stopped at midnight, its hands frozen precisely when someone had silenced Edmund Blackwood forever. She knelt beside the desk and discovered a torn photograph hidden underneath his trembling hand, still warm despite the storm. The photograph showed all seven guests smiling last summer, except one face had been carefully scratched out with something sharp. Then, from behind the locked library door, Mara heard slow breathing and realized the killer had never left the room.
created_at"2026-10-13T10:10:35.801Z" 10/13/2026, 10:10:35 AM
model"meta/muse-wonder-20261012"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2368
moderation_latency(null)
generation_time5289
tokens_prompt46
tokens_completion277
native_tokens_prompt42
native_tokens_completion1103
native_tokens_completion_images0
native_tokens_reasoning879
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"
usage0.022228
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791886235-pJyyXM2Tnd8iUKCRhXWL"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791886235-kpbdgsuJMrWwRPJKYj0m"
upstream_id"resp_6ace039c87caddc4bf274410"
provider_responses
0
endpoint_id"1232618d-ebfe-4338-9b68-d9127a57c8dd"
id"resp_6ace039c87caddc4bf274410"
is_byokfalse
latency564
model_permaslug"meta/muse-wonder-20261012"
provider_name"Meta"
status200
total_cost0.022228
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
sentences7
wordCounts
020
120
220
320
420
520
620