NC Bench
Overview
About
Tests
Models
Model
Claude Sonnet 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGYXWK7AVPG4K2EMQEQQ1D5Z
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 warm scent of cinnamon rolls hung thick in the air as Martha wiped down the counter for the third time that morning. "I heard they found him behind the old mill. Face down in the creek." "That's terrible. Poor Harold. Though I can't say I'm entirely surprised." "What do you mean by that?" "Well, you know how he was always arguing with Frank about that property line. Got quite heated last month at the town meeting." "Frank wouldn't hurt a fly. Besides, Harold had plenty of other people upset with him. What about his nephew? The one who showed up last spring expecting an inheritance?" "You mean David? He seemed pleasant enough when he came in for coffee cake on Thursdays." "Pleasant doesn't mean innocent. I saw him and Harold shouting outside the hardware store just last week." "Still, drowning seems like an odd way to—" "Who said anything about drowning?" The bell above the door chimed. Both women looked up as Sheriff Morrison stepped inside, rain dripping from his hat brim. "Morning, ladies. I'll take my usual. And whatever gossip you're spreading today." "We were just discussing the weather, Sheriff." "Sure you were."
created_at
"2026-02-08T15:28:32.951858+00:00"
Sunday, February 8th, 2026 at 3:28:32 PM GMT+00:00
model
"anthropic/claude-4.5-sonnet-20250929"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1239
moderation_latency
158
generation_time
6989
tokens_prompt
61
tokens_completion
245
native_tokens_prompt
77
native_tokens_completion
276
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
0.004371
router
(null)
provider_responses
0
id
"6f5066fe-0625-4940-8360-4d84924509fd"
status
200
is_byok
false
latency
1238
endpoint_id
"d8bee848-f020-454a-b2be-4a7ce868f99f"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-sonnet-20250929"
api_type
"completions"
id
"gen-1770564504-SwmRcSQDyC4WhNX2LBFF"
upstream_id
"6f5066fe-0625-4940-8360-4d84924509fd"
total_cost
0.004371
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)