Run: 2026-10-27-01M5YHMEA31JPSZZJNWYZVZGVX

Run Details

Duration:
7.3s
Cost:
$0.002906
Provider:
OpenAI

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
The rain began precisely when the first guest stopped breathing. At midnight, Blackthorn Manor held eleven people and twelve secrets. Detective Mara Voss had arrived expecting dinner, not a corpse. The host lay beneath the chandelier, clutching a silver key. A thin red thread disappeared beneath his tightly closed lips. Nobody admitted hearing a struggle, though everyone had heard screaming. Outside, the bridge had vanished beneath the swollen black river. Inside, someone had locked every door from the wrong side. Mara knelt, careful not to disturb the darkening Persian carpet. The dead man’s watch had stopped exactly three minutes ago. Then the grandfather clock struck thirteen, and somebody upstairs laughed.
created_at"2026-10-27T11:23:53.038Z" 10/27/2026, 11:23:53 AM
model"openai/gpt-6.1-terra-20261026"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4399
moderation_latency(null)
generation_time7271
tokens_prompt46
tokens_completion472
native_tokens_prompt41
native_tokens_completion573
native_tokens_completion_images0
native_tokens_reasoning430
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"default"
usage0.002906
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer(null)
request_id"req-1793100233-vkh4h95N7n7aEQ7TbBF7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1793100233-0MuGenmIerX82wfBEBo3"
upstream_id"resp_0f19ab4ec0f70fc1016ae089c91aec87d1853273e16d278ae8"
provider_responses
0
endpoint_id"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id"resp_0f19ab4ec0f70fc1016ae089c91aec87d1853273e16d278ae8"
is_byokfalse
latency270
model_permaslug"openai/gpt-6.1-terra-20261026"
provider_name"OpenAI"
status200
total_cost0.002906
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
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
sentences11
wordCounts
010
110
210
310
410
510
610
710
810
910
1010