Run: 2026-04-24-01KQ0N0J7Z6HKFSYMMB00M2JCC

Run Details

Duration:
7.1s
Cost:
$0.012295
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 polished the courthouse steps. Detective Mara Voss arrived alone. The clock had stopped midnight. Inside, candles trembled without wind. Judge Halden lay faceup, smiling. Blood darkened his white waistcoat. One glove covered his throat. The other held a key. Mara noticed mudless footprints nearby. Nobody entered through locked doors. Yet someone whispered her name. Then thunder answered from below.
created_at"2026-04-24T21:05:57.517Z" 4/24/2026, 9:05:57 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6666
moderation_latency(null)
generation_time6797
tokens_prompt46
tokens_completion218
native_tokens_prompt41
native_tokens_completion403
native_tokens_completion_images0
native_tokens_reasoning314
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"
usage0.012295
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_09dc65c60bb07dda0169ebdb359b0481958f1aa1b028a0fcd0"
is_byokfalse
latency304
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-1777064757-lOuyPovzTx9XFkRuG9fo"
session_id(null)
api_type"completions"
id"gen-1777064757-DcuJ5EmBKu3QUQfhoaAp"
upstream_id"resp_09dc65c60bb07dda0169ebdb359b0481958f1aa1b028a0fcd0"
total_cost0.012295
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