NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-03-18-01KM09HESM9CDHKZFDENP4HQWR
Run Details
Model:
GPT-5.4 Nano (Reasoning)
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
1.7s
Cost:
$0.000352
Provider:
OpenAI
Evaluation summary
Score
Evaluator
Details Link
60.65%
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 the afternoon light slid across the flour-dusted counter. Steam curled up from the ovens, carrying the warm, buttery smell of cinnamon rolls that never quite cooled fast enough. “Those are my last lemon cookies, you know.” “I know,”
Mara said
, sliding a plate under her nose like an offering. “But if we’re stuck waiting for the inspector, we’ll need something cheerful to chew.” “Cheerful doesn’t solve missing receipts.” “It might. People leave crumbs of more than sugar.” She nodded toward the back where a flour sack sat slightly open, like it had been disturbed. “Someone was in a hurry.” The baker wiped her hands on a towel. “You think the theft happened during the morning rush?” “Or right after.” Mara leaned closer, lowering her voice. “Why would anyone look for cash under the register when the safe was already—” “—already empty,” the baker finished, tight-lipped. “Because the owner swears he locked it.” Mara’s smile softened. “Then someone else had the key.” From the oven came a soft *pop* as a batch of rolls browned perfectly, as if the kitchen itself refused to believe in secrets. The bell jingled again, and both women turned toward the door.
created_at
"2026-03-18T10:58:22.657Z"
3/18/2026, 10:58:22 AM
model
"openai/gpt-5.4-nano-20260317"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
620
moderation_latency
(null)
generation_time
1580
tokens_prompt
81
tokens_completion
341
native_tokens_prompt
67
native_tokens_completion
271
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
0.00035215
router
(null)
provider_responses
0
endpoint_id
"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id
"resp_06798071f79609a20169ba854ed2388196a9ec1239a71a934e"
is_byok
false
latency
301
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-1773831502-Y2b1h0J2w4QKkjQVHAbv"
upstream_id
"resp_06798071f79609a20169ba854ed2388196a9ec1239a71a934e"
total_cost
0.00035215
cache_discount
(null)
upstream_inference_cost
0
provider_name
"OpenAI"
Evaluation details
Result
Evaluator
Details
Meta Data
60.65%
Count dialogue tags
n/a
neededClean
false
dialogueTags
0
"Mara said"