Run: 2026-07-09-01KX411N0YXB5MJFR95KT5G644

Run Details

Duration:
5.0s
Cost:
$0.004765
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 outside Blackthorn Manor as Inspector Vale arrived, summoned by a letter mailed three days after death. Inside, twelve dinner guests sat silently around the table, while their host lay facedown beside an untouched birthday cake. The grandfather clock struck midnight, although its hands showed eleven, and every candle guttered beneath an inexplicable breath of winter. Vale examined the corpse, noticing red wax beneath one fingernail and a tiny brass key clenched tightly between perfect teeth. Nobody admitted knowing the key, but Lady Blackthorn suddenly covered the empty chain hanging conspicuously around her pale, trembling neck. Then the locked library door creaked open upstairs, and a dead man’s voice calmly invited Inspector Vale to enter alone.
created_at"2026-07-09T18:08:10.29Z" 7/9/2026, 6:08:10 PM
model"openai/gpt-5.6-sol-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1562
moderation_latency(null)
generation_time4884
tokens_prompt46
tokens_completion207
native_tokens_prompt41
native_tokens_completion152
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"
usage0.004765
router(null)
provider_responses
0
endpoint_id"a54c5de0-89bf-4ad7-a212-cf977eed918a"
id"resp_08411e379adb5300016a4fe38a5f288193840cf852feb798f5"
is_byokfalse
latency210
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-1783620490-YWfSbFsjbs4aMlxE4Njv"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620490-f8fB9Xcj8jcY3O9y3NXG"
upstream_id"resp_08411e379adb5300016a4fe38a5f288193840cf852feb798f5"
total_cost0.004765
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
020
119
220
320
420
520