NC Bench
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Run: 2026-02-16-01KHK9PQ2Z4KHSCHMQ8BY3DGQY
Run Details
Model:
GPT-5.1
Test:
Dialogue tags
Scenario:
Write unattributed dialogue
Duration:
13.0s
Cost:
$0.006454
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
The bell over the door chimed as the morning rush thinned, leaving the bakery steeped in warm sugar and quiet. “You closed early yesterday. That’s not like you.” “Hard to sell blueberry scones when someone leaves a dead body by the delivery entrance.” “So it’s true. I thought it was just Mrs. Pritchard confusing the word ‘body’ with ‘bag of flour’ again.” “Flour doesn’t usually wear Italian loafers.” “You looked, then.” “I nearly tripped over him. Right there by the milk crates. Still had a cupcake box in his hand.” “From here?” “The logo was ours. Neatly tied ribbon, too. I don’t remember packing it.” “Maybe you just forgot. You do pack a lot of boxes.” “I forget my car keys, not entire orders. And the box was empty.” “Empty. In an alley. Next to a corpse. That’s… festive.” “The police asked if we’ve changed any recipes. I thought they were joking.” “People around here would riot if you messed with their cinnamon knots, not drop dead.” “They took the sugar canister.” “Took it? From your station?” “And scraped the frosting bowl. Apparently, someone thinks my buttercream is deadly.”
created_at
"2026-02-16T13:19:57.274179+00:00"
2/16/2026, 1:19:57 PM
model
"openai/gpt-5.1-20251113"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
7975
moderation_latency
(null)
generation_time
12920
tokens_prompt
81
tokens_completion
335
native_tokens_prompt
67
native_tokens_completion
637
native_tokens_completion_images
0
native_tokens_reasoning
373
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
0.00645375
router
(null)
provider_responses
0
id
"resp_09ffe98526b406a7016993196fca108190b1a6bf0946f41dd1"
status
200
is_byok
false
latency
150
endpoint_id
"764eb97f-8bab-4326-b29b-7a8799b00a70"
provider_name
"OpenAI"
model_permaslug
"openai/gpt-5.1-20251113"
api_type
"completions"
id
"gen-1771247983-qYnU3VYfs620IAYNzp4t"
upstream_id
"resp_09ffe98526b406a7016993196fca108190b1a6bf0946f41dd1"
total_cost
0.00645375
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)