NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGZ05G231YPSXFBQVBW1N9HV
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 lace curtains, casting delicate shadows across the glass display case filled with fresh scones and cinnamon rolls. The bell above the door jingled as it swung shut. "You heard about Margaret's garden gnome, I assume?" "The one that went missing last Tuesday? Found it myself, actually. Sitting pretty on the library steps with a note pinned to its hat." "A note? You're joking." "Wish I was. Said something about secrets buried under rosebushes. Mildred nearly fainted when she read it." The coffee machine hissed and gurgled. A plate slid across the worn wooden counter, bearing a still-warm blueberry muffin. "Margaret does have the nicest roses in town. Won the garden competition three years running." "That's exactly what I told Sheriff Davies. He just laughed and said gnome-napping wasn't a priority." "Typical. Meanwhile, someone in this town has a peculiar sense of humor." "Or they know something we don't." The door jingled again as another customer entered, bringing with them the crisp autumn air and the scent of falling leaves. Conversation paused, replaced by pleasant smiles and the comfortable rituals of small-town morning routines.
created_at
"2026-02-08T16:08:23.545769+00:00"
Sunday, February 8th, 2026 at 4:08:23 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1695
moderation_latency
(null)
generation_time
9094
tokens_prompt
61
tokens_completion
247
native_tokens_prompt
77
native_tokens_completion
293
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
0.00771
router
(null)
provider_responses
0
id
"msg_012UDQwGrMpLjW7Xkt4UK6W7"
status
200
is_byok
false
latency
1695
endpoint_id
"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770566893-ziQIzOG4ThOYKlcGvVv2"
upstream_id
"msg_012UDQwGrMpLjW7Xkt4UK6W7"
total_cost
0.00771
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)