Run: 2026-04-24-01KQ0PEAAZVF1X69EA2Q02GPVB

Run Details

Duration:
11.6s
Cost:
$0.018355
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 5 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain lashed Ravenwick Manor's windows. Inside, every clock stopped together. Inspector Hale arrived before dawn. Footprints blackened the marble hallway. Lady Arden lay among roses. Her pearls circled one wrist. Blood stained the invitation cards. No servant admitted hearing screams. The butler locked every door. Yet someone hummed upstairs softly. Hale found mud on silver. Then her locket clicked open.
created_at"2026-04-24T21:30:56.741Z" 4/24/2026, 9:30:56 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency11251
moderation_latency(null)
generation_time11473
tokens_prompt46
tokens_completion387
native_tokens_prompt41
native_tokens_completion605
native_tokens_completion_images0
native_tokens_reasoning516
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"
usage0.018355
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_056344359b930d000169ebe110d49881939adb6031676dedee"
is_byokfalse
latency293
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-1777066256-aNDPaFuY1Uo3GexH0EUd"
session_id(null)
api_type"completions"
id"gen-1777066256-xQt14vW7E1WqFBgatJTt"
upstream_id"resp_056344359b930d000169ebe110d49881939adb6031676dedee"
total_cost0.018355
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
sentences12
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115