NC Bench
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Run: 2026-02-16-01KHK9VGKZZ931V429PK3NKX47
Run Details
Model:
GPT-5 Nano
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
1m 29s
Cost:
$0.002869
Provider:
OpenAI
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
Night trimmed the suburb with a gentle milky glow. Molly and Bill crouched behind a hedge, eyes on the house where a children's party glittered through striped banners. A brass band drifted from the open window, and giggles spilled like confetti. They practiced their scheme in whispers, tossing bread-crumb ideas onto a napkin that smelled faintly of cinnamon. Molly twirled a face scarf and grinned. Bill saluted the imaginary heist crew with a fingertip, then checked his watch, which blinked twelve colors in rhythm with the distant drums. This was silly, thrilling, and somehow theirs alone for tonight's ridiculous triumph. Molly: Quiet, Bill, the party lights mask the chaos nearby. Bill: Relax, partner, I brought bubble wrap to muffle steps. Molly: We slip through the kitchen, avoid the squeaky floorboards. Bill: Let balloons do distraction, while we applaud from afar. Molly: Don’t wake the mascot; he’s loyal to nap time. Bill: Then we zip toward the parlor of dreams tonight. Molly: I want the presents; the wrapping bows sparkle tonight. Bill: Then we dash, dodge jittery clowns, sprint toward loot. Molly: If alarms ping, we improvise a triumphant victory dance. Bill: Agreed, but share the spoils with the lemonade stands.
created_at
"2026-02-16T13:23:50.823424+00:00"
2/16/2026, 1:23:50 PM
model
"openai/gpt-5-nano-2025-08-07"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
30925
moderation_latency
(null)
generation_time
88778
tokens_prompt
77
tokens_completion
1074
native_tokens_prompt
66
native_tokens_completion
7164
native_tokens_completion_images
0
native_tokens_reasoning
6848
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.0028689
router
(null)
provider_responses
0
id
"resp_04625355a79ed8c90169931a0d03ec8194893e02b20f6fec3e"
status
200
is_byok
false
latency
136
endpoint_id
"50329d77-04e1-4979-a184-c33030289476"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-5-nano-2025-08-07"
api_type
"completions"
id
"gen-1771248140-2MogK3PBZVoHsYHx1OKD"
upstream_id
"resp_04625355a79ed8c90169931a0d03ec8194893e02b20f6fec3e"
total_cost
0.0028689
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
99.9990%
Matches word count
n/a
neededClean
false
words
201
0.0000%
Dialogue to Total Word Ratio
Ratio: 0.00%, Deviation: 50.00%
neededClean
false
wordsTotal
201
wordsDialogue
0
49.9995%