NC Bench
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Run: 2026-02-16-01KHK9GX4ETVGVYFS4NRJV4XST
Run Details
Model:
GPT-5.1
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
52.6s
Cost:
$0.038582
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
Bill adjusted the clown nose Molly had jammed onto his face, its squeak sadly unthreatening. They crouched behind the inflatable castle, watching a swarm of sugar-fueled children orbit the gift table like tiny, sticky planets. "So we just walk in and smile, right?" Molly checked her watch, which was actually a stolen baby monitor blinking with static. Somewhere inside, a toddler was babbling classified intel about cake. The backyard thumped with music and the occasional wail of injustice over balloon animals. "Bill, focus; they're six, not sharks. Grab the glittery ones. Only those." She unfolded the blueprint: a crayon drawing she’d bribed from the birthday kid with a contraband cupcake. X’s marked the presents, the piñata, and, inexplicably, the dog. Their getaway wagon waited at the curb, a dented minivan plastered with “Magic Party Fun” stickers. In the front seat, a smoke machine puffed theatrically, making the vehicle look less like a car and more like a confused cloud. At precisely piñata o’clock, the kids would charge the candy decoy. Under cover of chaos, Molly and Bill would slip in, smiling, and liberate the loot. With luck, the only screaming would be about missing frosting, not missing gifts that night.
created_at
"2026-02-16T13:17:26.603277+00:00"
2/16/2026, 1:17:26 PM
model
"openai/gpt-5.1-20251113"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
23712
moderation_latency
(null)
generation_time
52418
tokens_prompt
77
tokens_completion
930
native_tokens_prompt
66
native_tokens_completion
3850
native_tokens_completion_images
0
native_tokens_reasoning
3563
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
0.0385825
router
(null)
provider_responses
0
id
"resp_050803568ae1eb3e01699318b15ed8819084637f8154a541f2"
status
200
is_byok
false
latency
214
endpoint_id
"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-5.1-20251113"
api_type
"completions"
id
"gen-1771247793-NxmLlarDLYFLm1T3a8UZ"
upstream_id
"resp_050803568ae1eb3e01699318b15ed8819084637f8154a541f2"
total_cost
0.0385825
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
99.9567%
Dialogue to Total Word Ratio
Ratio: 11.44%, Deviation: 1.44%
neededClean
false
wordsTotal
201
wordsDialogue
23
99.9778%