Run: 2026-04-24-01KQ0PAT7JANHY0MBB3450DCR2

Run Details

Duration:
11.8s
Cost:
$0.016225
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
Rain lacquered the manor windows as midnight swallowed Blackthorn whole. Inspector Vale arrived late, carrying cigarettes, questions, and a warrant. Inside, the guests stood silent around Lord Ashcombe's cooling body. His dinner knife protruded neatly beneath one embroidered silk waistcoat. No one wept; the clocks kept arguing in different rooms. A shattered glass glittered beside the untouched blackberry tart nearby. Lady Ashcombe smiled faintly, though blood marked her wedding ring. Then thunder revealed footsteps stopping outside the locked library door.
created_at"2026-04-24T21:29:01.944Z" 4/24/2026, 9:29:01 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11041
moderation_latency(null)
generation_time11355
tokens_prompt46
tokens_completion467
native_tokens_prompt41
native_tokens_completion534
native_tokens_completion_images0
native_tokens_reasoning424
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"
usage0.016225
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0053dc764fe1f3c50169ebe09e038c8197bf5e9e668d24fa12"
is_byokfalse
latency236
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777066141-YA3wrRsdm4kzfhncsMCm"
session_id(null)
api_type"completions"
id"gen-1777066141-wQa4YiveKVaPALGwNfkR"
upstream_id"resp_0053dc764fe1f3c50169ebe09e038c8197bf5e9e668d24fa12"
total_cost0.016225
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
010
110
210
310
410
510
610
710