Run: 2026-07-09-01KX40Z0ZPRZRN32DHEJ1EF46R

Run Details

Duration:
18.6s
Cost:
$0.032082
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
93.44% 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
Rain polished the cobblestones as Inspector Vale arrived at Blackthorn Manor, summoned by a telephone call that ended abruptly at midnight. The butler waited beneath the portico, clutching a silver candlestick, while thunder concealed unfamiliar footsteps approaching outside the manor tonight. Inside, guests huddled around the library fire, their faces pale beneath portraits of ancestors who seemed equally suspicious and watchful. Lord Blackthorn lay sprawled beside his desk, an ivory knife lodged neatly between his shoulder blades without blood on it. No window stood open, no door showed damage, and every guest insisted they had remained together during dinner downstairs tonight. Vale noticed a wet footprint beside the corpse, pointing inward, although everyone claimed the storm had begun much later outside.
created_at"2026-07-09T18:06:44.223Z" 7/9/2026, 6:06:44 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency16997
moderation_latency(null)
generation_time18142
tokens_prompt46
tokens_completion217
native_tokens_prompt41
native_tokens_completion2132
native_tokens_completion_images0
native_tokens_reasoning1972
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"
usage0.0320825
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_079dfc46f5975e84016a4fe33499408196a87c8fa2069a9a43"
is_byokfalse
latency210
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620404-Fo5SaZf4xi6yluREEKbl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620404-G4poE8tAdVxlQfLMSYui"
upstream_id"resp_079dfc46f5975e84016a4fe33499408196a87c8fa2069a9a43"
total_cost0.0320825
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
93.44% Matches word count n/a
neededCleanfalse
sentences6
wordCounts
021
120
220
320
420
520