NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGYZBWWDD7KZN5D2SKB8SACH
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 window of Sweet Crumbs Bakery, casting golden light across the display case filled with fresh croissants and blueberry scones. "You heard about Martha's garden gnome, I assume?" "The one that went missing last Tuesday? Found it myself, actually. Sitting pretty on the bench outside the library." "No! You're joking." "Hand to God. Had a tiny note tucked under its arm too. Something about overdue books." The espresso machine hissed and gurgled, filling the cozy space with the rich aroma of freshly pulled shots. "That's the third strange thing this month. First the switched mailbox flags, then those cryptic messages in the church bulletin, and now this." "Someone in Maple Creek has too much time on their hands." "Or they're trying to tell us something." A tray of cinnamon rolls emerged from the kitchen, their sweet glaze still glistening. The bell above the door chimed as an elderly man shuffled in, clutching a folded newspaper. "Speaking of mysteries, here comes Harold. He claims he knows who's behind it all." "Harold thinks his cat is psychic." "Doesn't mean he's wrong about this."
created_at
"2026-02-08T15:54:24.56608+00:00"
Sunday, February 8th, 2026 at 3:54:24 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1611
moderation_latency
(null)
generation_time
9030
tokens_prompt
61
tokens_completion
245
native_tokens_prompt
77
native_tokens_completion
287
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
0.00756
router
(null)
provider_responses
0
id
"msg_01M6FuMP3riiVaM88Z4T7fFH"
status
200
is_byok
false
latency
1611
endpoint_id
"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770566054-CnEJ5M8kMYvhJ21a6KLv"
upstream_id
"msg_01M6FuMP3riiVaM88Z4T7fFH"
total_cost
0.00756
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)