Run: 2026-10-27-01M5YFGJQW0NFVQR8HJ7JJD1VW

Run Details

Duration:
8.0s
Cost:
$0.003351
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 fog arrived before dawn, swallowing the manor and grounds. By breakfast, someone had murdered the master of the house. His body lay beneath the clock, which had stopped ticking. Blood darkened the carpet beside his outstretched, carefully manicured hand. Detective Mara Vane studied the room without crossing its threshold. Every window was locked, and the fireplace held cold ashes. Behind her, the household gathered silently along the narrow corridor. Each face betrayed something different: grief, fear, anger, calculated indifference. Only the youngest daughter seemed genuinely surprised to see Mara. Three days earlier, she had summoned Mara with one warning. “Someone in this house intends to kill my father tonight.”
created_at"2026-10-27T10:46:49.351Z" 10/27/2026, 10:46:49 AM
model"openai/gpt-6.1-terra-20261026"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6949
moderation_latency(null)
generation_time7977
tokens_prompt46
tokens_completion192
native_tokens_prompt41
native_tokens_completion662
native_tokens_completion_images0
native_tokens_reasoning516
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"
usage0.003351
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.22.1; linux; x64))"
http_referer(null)
request_id"req-1793098009-Shss7jX5S9BFo4FnoxPm"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1793098009-R7pQMnSUFY8JT9iujd1L"
upstream_id"resp_04260379f8e5b9e5016ae081196ca487d1af48dc457122925a"
provider_responses
0
endpoint_id"2d2ad10f-098e-4bbf-aa95-11f705b2b9a2"
id"resp_04260379f8e5b9e5016ae081196ca487d1af48dc457122925a"
is_byokfalse
latency255
model_permaslug"openai/gpt-6.1-terra-20261026"
provider_name"OpenAI"
status200
total_cost0.003351
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