Run: 2026-03-18-01KM0AK1EAD13HE73NA1JAV79G

Run Details

Duration:
914ms
Cost:
$0.000467
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 station windows. Inspector Vale arrived alone tonight. The platform clock had stopped. Somebody had left roses nearby. Their stems dripped over newspapers. A body lay beneath benches. Its pockets held a ticket. The ticket named no destination. Vale knelt, studying the throat. One neat cut, still gleaming. Behind him, footsteps ceased abruptly. A voice whispered, “Too late.”
created_at"2026-03-18T11:16:43.096Z" 3/18/2026, 11:16:43 AM
model"openai/gpt-5.4-mini-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency365
moderation_latency(null)
generation_time831
tokens_prompt46
tokens_completion114
native_tokens_prompt41
native_tokens_completion97
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)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.00046725
router(null)
provider_responses
0
endpoint_id"9ee065b2-3d1c-43bc-bdd7-28af3b148282"
id"resp_0454893c7a590b470169ba899b26d881959419c5741f8cfbc4"
is_byokfalse
latency172
model_permaslug"openai/gpt-5.4-mini-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773832603-WbqxeaslGLoBT4i96e82"
upstream_id"resp_0454893c7a590b470169ba899b26d881959419c5741f8cfbc4"
total_cost0.00046725
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

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