NC Bench
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Run: 2026-02-16-01KHK9BVZTM989Q3538Y64XNR3
Run Details
Model:
GPT-5 Nano
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
51.8s
Cost:
$0.001996
Provider:
OpenAI
Model input
User/Human
You are an expert novel writer in the cozy mystery genre. Write a scene of about 200 words, with dialogue between two characters. The dialogue should be unattributed, meaning the speaker is not explicitly mentioned. The scene should be set in a small town bakery. Only return the story, nothing else.
Model response
Messages
Meta
AI
Sunlight spilled across the checkered floor of the town bakery, turning flour into soft snowfall. The bell over the door tinkled with every customer, and the air tasted faintly of cinnamon, sugar, and rain. At the counter stood two regulars: one with a notebook brimming with clues, the other with a rolling pin and a stake in the community's whispers. "Morning breeze smells like cinnamon and trouble, doesn't it?" "Only when the vanilla bean disappears that fast." "Last night the recipe card vanished from the back counter." "And with it, a promise to bake the town's fate." "We found flour on the floor where no flour should be." "Footprints, tiny as fingernails, lead toward the storage room." "Then someone tied the clock's hands to hide the time." "Or maybe the clock hid the truth in chimes." "The case won't crack itself; we need to think like bakers." "That means testing suspects by what they crave most." "Like croissants who envy lemon tarts and haunt the kitchen." "Or the supplier who hates missing ingredients and debts." "Let's check the spice cabinet and the ledger in silence." "And listen for echoes of footsteps behind the flour bin." "Till then, keep your eyes on the clock and your hands on the dough."
created_at
"2026-02-16T13:14:40.609899+00:00"
2/16/2026, 1:14:40 PM
model
"openai/gpt-5-nano-2025-08-07"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3666
moderation_latency
(null)
generation_time
51624
tokens_prompt
81
tokens_completion
1407
native_tokens_prompt
67
native_tokens_completion
4982
native_tokens_completion_images
0
native_tokens_reasoning
4672
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
0.00199615
router
(null)
provider_responses
0
id
"resp_0c913738ef4b20fc016993180c68ac81979384f6ef72fb8684"
status
200
is_byok
false
latency
198
endpoint_id
"50329d77-04e1-4979-a184-c33030289476"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-5-nano-2025-08-07"
api_type
"completions"
id
"gen-1771247628-nFreeWbGEyMTM3sdq3z0"
upstream_id
"resp_0c913738ef4b20fc016993180c68ac81979384f6ef72fb8684"
total_cost
0.00199615
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)