Run: 2026-07-09-01KX40E84MM87YNVK9D26EFVEH

Run Details

Duration:
3.1s
Cost:
$0.004045
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
84.26% 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, Inspector Vale arrived at Blackthorn Manor, where snow had already buried every road and silenced the ancient gardens. Inside, twelve guests stood beneath the chandelier, staring at their host, who lay dead beside a shattered grandfather clock. No window was open, no door unlocked, yet muddy footprints crossed the carpet and ended beneath Lady Blackthorn's crimson chair. Vale counted eleven guests, then noticed the portrait above the fireplace depicted a twelfth face still glistening with fresh, wet paint. From somewhere behind the paneled walls, a woman laughed softly, and every candle in the drawing room abruptly went dark.
created_at"2026-07-09T17:57:34.492Z" 7/9/2026, 5:57:34 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency583
moderation_latency(null)
generation_time3023
tokens_prompt46
tokens_completion169
native_tokens_prompt41
native_tokens_completion128
native_tokens_completion_images0
native_tokens_reasoning0
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"
usage0.004045
router(null)
provider_responses
0
endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_0ea2859b833afd8b016a4fe10e92348193a98668befe45d2c2"
is_byokfalse
latency251
model_permaslug"openai/gpt-5.6-sol-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783619854-17td2XbYgL0TGuZkSSBC"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619854-am19QTKSKpLtaiOt4iut"
upstream_id"resp_0ea2859b833afd8b016a4fe10e92348193a98668befe45d2c2"
total_cost0.004045
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
84.26% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
020
119
220
321
420