NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-16-01KHK9RX4TT8DN5B8SWCC9WFHM
Run Details
Model:
GPT-5 Nano
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
1m 53s
Cost:
$0.004130
Provider:
OpenAI
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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
On the alley behind a party-store, the air smelled of balloons and decisions. Molly crouched by a stack of napkins, pretending she was assembling a blueprint, while Bill unfurled a map that could never survive a gust of wind. Their plan was ridiculous and perfectly harmless in their minds: break into a children's party, steal every present, and return the chaos to the world in the form of clever stories. The two of them had practiced with empty pockets and a chorus of squeaky shoe soles, and the neighborhood cats watched with disdainful eyes. Molly, eyes twinkling, counted the minutes until the cake would be cut and the sugar would cloud the air with sugar dust, a signal, perhaps, to act. Bill checked his watch, which looked suspiciously like a kitchen timer, then tucked it away as if it were a rare jewel. The scene hummed with mischief and thunder of distant fireworks. They spoke in overheard whispers, plotting a heist that would never be repeated, if only because it was too silly to be believed. Molly: "We can't steal everything yet." Bill: "First the party, then the presents." Molly: "We start after cake, yes." Bill: "And we wear mittens."
created_at
"2026-02-16T13:22:49.064067+00:00"
2/16/2026, 1:22:49 PM
model
"openai/gpt-5-nano-2025-08-07"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4858
moderation_latency
(null)
generation_time
112539
tokens_prompt
77
tokens_completion
1558
native_tokens_prompt
66
native_tokens_completion
10316
native_tokens_completion_images
0
native_tokens_reasoning
10048
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
0.0041297
router
(null)
provider_responses
0
id
"resp_05779e1e725fdfbc01699319b78a708196ab3fbcef47794098"
status
200
is_byok
false
latency
118
endpoint_id
"50329d77-04e1-4979-a184-c33030289476"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-5-nano-2025-08-07"
api_type
"completions"
id
"gen-1771248055-PoMWzEgTvUi1GOLAmkSA"
upstream_id
"resp_05779e1e725fdfbc01699319b78a708196ab3fbcef47794098"
total_cost
0.0041297
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
100.0000%
Dialogue to Total Word Ratio
Ratio: 9.95%, Deviation: 0.05%
neededClean
false
wordsTotal
201
wordsDialogue
20
99.9995%