NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGZ023FEQ7M4ZPD5R379NB81
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 aroma of cinnamon rolls and fresh coffee filled the tiny bakery as morning light streamed through lace curtains. A woman in a flour-dusted apron leaned across the counter, lowering her voice. "Did you hear about what they found behind the old Miller house?" "A body, wrapped in a quilt from the church bazaar. Martha's handiwork, if you can believe it." "Martha? She couldn't hurt a fly. She still apologizes to dandelions before pulling them." "I'm just telling you what Deputy Harris told his wife, who told me when she picked up her sourdough this morning." "Well, did they identify who it was?" "That's the strange part. Nobody's missing. Not a single person in Willowbrook has failed to show up anywhere." "Then who—" The bell above the door chimed, and both women straightened immediately. An elderly man shuffled in, his eyes darting between them. "Morning, ladies. I'll take my usual blueberry muffin." "Coming right up, Harold." "Heard you two whispering when I walked up. Whatever you think you know about that business on Miller Lane, I'd keep it to yourselves." The door swung shut behind him, leaving nothing but the scent of fear mixing with fresh-baked bread.
created_at
"2026-02-08T16:06:32.237637+00:00"
Sunday, February 8th, 2026 at 4:06:32 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1454
moderation_latency
(null)
generation_time
8974
tokens_prompt
61
tokens_completion
262
native_tokens_prompt
77
native_tokens_completion
305
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
0.00801
router
(null)
provider_responses
0
id
"msg_01Q7Waf1MSysv62F4Yj6pECf"
status
200
is_byok
false
latency
1454
endpoint_id
"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770566782-AIFSOF55MjBXrEvfiIB6"
upstream_id
"msg_01Q7Waf1MSysv62F4Yj6pECf"
total_cost
0.00801
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Count dialogue tags
n/a
neededClean
false
dialogueTags
(empty)