Run: 2026-02-16-01KHKB3XHSFXNK7DRDYSPVRWCR

Run Details

Model:
GPT-5 Nano
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
23.3s
Cost:
$0.000888
Provider:
OpenAI

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
Night rain hollowed the alleys. A chill clung to lamps. A crime lay beyond whispers. The body lay behind doors. Detective Mara surveyed the room. Candles guttered, shadows leaned closer. A note whispered its instructions. Unknown ink mapped a motive.
created_at"2026-02-16T13:44:48.511677+00:00" 2/16/2026, 1:44:48 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6240
moderation_latency(null)
generation_time23046
tokens_prompt46
tokens_completion807
native_tokens_prompt41
native_tokens_completion2214
native_tokens_completion_images0
native_tokens_reasoning2112
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"
usage0.00088765
router(null)
provider_responses
0
id"resp_07fb9e23fddde3700169931f3900548197b41dc403ab109d1d"
status200
is_byokfalse
latency143
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771249464-VjFL9wQp7S2Nq6IaHXxd"
upstream_id"resp_07fb9e23fddde3700169931f3900548197b41dc403ab109d1d"
total_cost0.00088765
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences8
wordCounts
05
15
25
35
45
55
65
75