Run: 2026-02-16-01KHK9GWMCP2X29KCZ205QSEMY

Run Details

Model:
GPT-5 Nano
Test:
N-Length Sentences
Scenario:
Write sentences with 5 words each
Duration:
19.4s
Cost:
$0.000824
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
The clock hissed in corridors. Rain battered the newsroom windows. A body lay beneath lamps. Police tape fluttered, whispering secrets. Detective Mara surveyed the scene. Ashen faces gathered behind gloves. A note curled on chest. Its handwriting whispered cold threats. The city hissed outside tonight. Red sirens waited in shadows. A kettle hissed, secrets spilled.
created_at"2026-02-16T13:16:52.87886+00:00" 2/16/2026, 1:16:52 PM
model"openai/gpt-5-nano-2025-08-07"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2112
moderation_latency(null)
generation_time19336
tokens_prompt46
tokens_completion847
native_tokens_prompt41
native_tokens_completion2054
native_tokens_completion_images0
native_tokens_reasoning1920
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"
usage0.00082365
router(null)
provider_responses
0
id"resp_069418db65d6f02101699318b0d8348190b4f03a1e86a68a08"
status200
is_byokfalse
latency117
endpoint_id"50329d77-04e1-4979-a184-c33030289476"
provider_name"OpenAI"
model_permaslug"openai/gpt-5-nano-2025-08-07"
api_type"completions"
id"gen-1771247792-RmQQG0hr6CD7sA6wh373"
upstream_id"resp_069418db65d6f02101699318b0d8348190b4f03a1e86a68a08"
total_cost0.00082365
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

Evaluation details

Result Evaluator Details Meta Data
100.0000% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
05
15
25
35
45
55
65
75
85
95
105