NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-18-01KM07APAR677QW2DM7451EEJX
Run Details
Model:
GPT-5.4 Nano (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
1.6s
Cost:
$0.000356
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
0.03%
Count dialogue tags
(details)
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
The bell over the door gave a tired jingle as a sheet of rain-dark clouds slid over the storefront. Inside, the bakery smelled like cinnamon and warm vanilla, and the glass case glowed softly under its lights. “Looks like someone decided to borrow the sky and spill it all at once,”
Maribel said
, wiping flour from her hands with the edge of her apron. “It’s not the sky that worries me,”
June replied
, leaning closer to the counter. “That receipt you found—there’s no name on it. Just a time and an address written in the same careful hand.” Maribel’s smile flickered, then settled back into place. “Maybe the handwriting belongs to a customer who likes being mysterious.” “Customers don’t circle the word ‘hazelnut’ like it’s evidence,”
June said
, nodding toward the scrap of paper tucked beside the register. Maribel’s fingers paused above the pastry box. “Or maybe they just really hate substitutions.” June slid the note closer. “There’s more. The time it says matches when the delivery truck showed up, but it wasn’t on the manifest.” The oven sighed, releasing a fresh puff of caramel scent. “Then we have to ask the truck driver again,”
Maribel said
, voice gentle. “And this time, we ask with muffins in hand.”
created_at
"2026-03-18T10:19:43.844Z"
3/18/2026, 10:19:43 AM
model
"openai/gpt-5.4-nano-20260317"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
425
moderation_latency
(null)
generation_time
1423
tokens_prompt
81
tokens_completion
339
native_tokens_prompt
67
native_tokens_completion
274
native_tokens_completion_images
0
native_tokens_reasoning
0
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
0.0003559
router
(null)
provider_responses
0
endpoint_id
"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id
"resp_08590c74009a09080169ba7c3fe7048194b628f6dea142d914"
is_byok
false
latency
167
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-1773829183-v9kS9KSnxcRzvLzvbWlG"
upstream_id
"resp_08590c74009a09080169ba7c3fe7048194b628f6dea142d914"
total_cost
0.0003559
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
0.03%
Count dialogue tags
n/a
neededClean
false
dialogueTags
0
"Maribel said"
1
"June replied"
2
"June said"
3
"Maribel said"