NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGYX2DQHSYH3TFDQNCGKTGJP
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 morning sun streamed through the front windows of Sweet Crumbs Bakery, casting warm light across the glass display cases filled with fresh pastries. The bell above the door chimed softly. "You're here early. The cinnamon rolls aren't even out of the oven yet." "I'm not here for pastries, Martha. I heard about what happened at the library last night." "News travels fast in Millbrook. Faster than my sourdough rises, apparently." "They found Harold Pemberton slumped over in the reference section. Heart attack, they're saying." "That's not what Doris told me when she came in for her morning scone. She said there was a teacup next to him. One that didn't belong to the library." "You don't think—" "I think Harold had plenty of enemies in this town. Remember how he voted against the community garden project? And that nasty business with the historical society?" "Martha, you can't go around suggesting such things." "I'm not suggesting anything. I'm just saying that when a man who collected secrets ends up dead surrounded by books, maybe we shouldn't be so quick to blame his cholesterol." The oven timer dinged. "Now, about those cinnamon rolls?"
created_at
"2026-02-08T15:14:15.958469+00:00"
Sunday, February 8th, 2026 at 3:14:15 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1868
moderation_latency
155
generation_time
7632
tokens_prompt
61
tokens_completion
249
native_tokens_prompt
77
native_tokens_completion
290
native_tokens_completion_images
(null)
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
"stop"
usage
0.007635
router
(null)
provider_responses
0
id
"317d41e1-a07c-496d-8a5f-1fe44e3bcd71"
status
200
is_byok
false
latency
1868
endpoint_id
"de32581c-2e11-4f54-8d29-e8a6e19d3038"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770563647-jtfC8LD5SAsHmMlrtjKv"
upstream_id
"317d41e1-a07c-496d-8a5f-1fe44e3bcd71"
total_cost
0.007635
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)