NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-18-01KM07VN47PET9M64QYGPF25PR
Run Details
Model:
GPT-5.4 Nano (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
29.7s
Cost:
$0.005748
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
99.22%
Dialogue to Total Word Ratio
(details)
99.6123%
Overall
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
Moonlight pooled on the porch when Molly set her stethoscope to the wall. Bill held a tiny wrench, pretending it was a toy. They stared at the open window, where music thumped like a heartbeat. Tonight’s target: every wrapped gift, no questions asked. “Eight o’clock, they swap candles, and the parents cheer.” “Perfect, I’ll spoof the smart lock while you lift the tree skirt.” “If a clown guard appears, tell him we’re undercover elves.” “Elves don’t steal.” “We only relocate happiness.” “Grab the big ones, then the socks, then the candy cannons.” “Candy cannons are risky.” “Everything is risky, but my magnet gloves are licensed.” “And if the birthday kid catches you, wink, and blame the Easter Bunny.” “I’ll distract him with a balloon sword today.” “Go time, this second. After eight minutes, the grandparents start the do-si-do.” “When they dance, we vanish.” Molly tapped her comms to count down, and the hallway scent of frosting drifted outward. Bill slid the lock plate with his magnet tool. A muffled cheer rose; someone opened a bag of confetti. Molly reached for the biggest box, then paused as a tiny sticker squeaked, calling her name. It read, 'Happy birthday, Molly!' in glitter.
created_at
"2026-03-18T10:28:59.67Z"
3/18/2026, 10:28:59 AM
model
"openai/gpt-5.4-nano-20260317"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
28745
moderation_latency
(null)
generation_time
29054
tokens_prompt
77
tokens_completion
1395
native_tokens_prompt
66
native_tokens_completion
4588
native_tokens_completion_images
0
native_tokens_reasoning
4304
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
0.0057482
router
(null)
provider_responses
0
endpoint_id
"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id
"resp_01fadd131e9d87910169ba7e6bbd6c8193bed54c1986289657"
is_byok
false
latency
184
model_permaslug
"openai/gpt-5.4-nano-20260317"
provider_name
"OpenAI"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer
(null)
api_type
"completions"
id
"gen-1773829739-jNdVBzem9m1vEuXWavz2"
upstream_id
"resp_01fadd131e9d87910169ba7e6bbd6c8193bed54c1986289657"
total_cost
0.0057482
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
words
200
99.22%
Dialogue to Total Word Ratio
Ratio: 52.97%, Deviation: 2.97%
neededClean
false
wordsTotal
202
wordsDialogue
107
99.6123%