Run: 2026-04-24-01KQ0PDETRAKG9CBF5QFZWWA71

Run Details

Duration:
9.2s
Cost:
$0.015385
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 lacquered the manor windows. Inside, clocks disagreed about midnight. Inspector Vale found candles guttering. Lord Ashby lay beneath portraits. Blood darkened his ivory waistcoat. The poker rested beside him. No fingerprints marked its handle. Lady Ashby watched without blinking. Her necklace glittered like frost. Servants whispered behind velvet curtains. Thunder covered someone’s soft sob. Vale noticed fresh mud indoors. Then the corpse’s watch chimed. But every clock showed eleven.
created_at"2026-04-24T21:30:28.577Z" 4/24/2026, 9:30:28 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency8678
moderation_latency(null)
generation_time9035
tokens_prompt46
tokens_completion392
native_tokens_prompt41
native_tokens_completion506
native_tokens_completion_images0
native_tokens_reasoning403
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"
usage0.015385
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0c7d02992392f6430169ebe0f4ade48197aa868072b56a7ef4"
is_byokfalse
latency271
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-1777066228-ZuDyl33HA7inx3iwNhLD"
session_id(null)
api_type"completions"
id"gen-1777066228-wcUBMY4N4RZF83lWN2bP"
upstream_id"resp_0c7d02992392f6430169ebe0f4ade48197aa868072b56a7ef4"
total_cost0.015385
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
sentences14
wordCounts
05
15
25
35
45
55
65
75
85
95
105
115
125
135