Run: 2026-10-05-01M46B3BJFZACCFVFRMY22HMW9

Run Details

Duration:
23.1s
Cost:
$0.009742
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 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
At midnight, the storm extinguished every window in Blackthorn House, except the library, where someone had recently lit a candle. Inspector Mara Vale arrived eleven minutes later, carrying a soaked invitation and wearing the expression reserved for particularly unwelcome reunions. The butler admitted her without speaking, although his trembling hands suggested he had already exhausted every useful word that evening. Beyond him, six guests stood around Lord Blackthorn, whose body occupied the hearthrug with an almost theatrical disregard for dignity. His dinner jacket was immaculate, his throat was bruised, and a silver key protruded between his lips like a joke. Mara recognized the key immediately, but she kept her face still while the dead man's daughter began explaining the impossible. She had locked the library after dinner, she said, and nobody possessed another key, except her father now lying there. Under the candle, a sealed envelope bore Mara's name, written in the handwriting of the husband she had buried yesterday.
created_at"2026-10-05T15:32:13.524Z" 10/5/2026, 3:32:13 PM
model"openai/gpt-6.1-sol-20260929"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency21206
moderation_latency(null)
generation_time23101
tokens_prompt46
tokens_completion263
native_tokens_prompt41
native_tokens_completion966
native_tokens_completion_images0
native_tokens_reasoning766
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"
usage0.009742
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1791214333-W3pV5YFuyo1lERtkETwI"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791214333-O086gFvDio1B451ryLIk"
upstream_id"resp_0fb0738c5f1554e5016ac3c2fd9fb887d1b3f3d8a9767e5667"
provider_responses
0
endpoint_id"dfb9d5c3-63f9-4263-8b78-4fa97dcb3d5e"
id"resp_0fb0738c5f1554e5016ac3c2fd9fb887d1b3f3d8a9767e5667"
is_byokfalse
latency320
model_permaslug"openai/gpt-6.1-sol-20260929"
provider_name"OpenAI"
status200
total_cost0.009742
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
sentences8
wordCounts
020
120
220
320
420
520
620
720