NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Dialogue tags
Scenario
Write unattributed dialogue
Run ID
2026-02-08-01KGYZB0A6H0B0KVTSVQQKRX2D
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 Case of the Missing Croissants The bell above the door chimed as Margaret pushed inside, her nose immediately drawn to the scent of butter and vanilla. "Morning, dear. The usual?" "Actually, I need to ask you something. Did you bake extra croissants yesterday?" "Three dozen, same as always. Why?" "Because I counted the display case this morning. Seventeen were gone." "That's impossible. I locked up at six, and nobody has a key but me." "Are you certain? Think carefully." A pause. The owner's face paled. "Well... my nephew was helping me close. He asked to borrow the key to run next door to the post office." "And?" "He was gone for twenty minutes. It seemed longer than necessary." Margaret's eyes narrowed thoughtfully. "Has he been in any financial trouble lately?" "Now that you mention it, yes. Heavy gambling debts, I'm afraid. But surely he wouldn't—" "Steal your croissants? Not for himself, I suspect. I'd wager he sold them to the café down the street. They've been unusually busy lately." The owner's shoulders sagged. "What do I do?" "Have a conversation. A family one. Then perhaps consider changing your locks."
created_at
"2026-02-08T15:53:50.918307+00:00"
Sunday, February 8th, 2026 at 3:53:50 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1146
moderation_latency
230
generation_time
4133
tokens_prompt
61
tokens_completion
265
native_tokens_prompt
77
native_tokens_completion
295
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
0.001552
router
(null)
provider_responses
0
id
"b9ddbda4-5716-4348-b073-75fd739d6b33"
status
200
is_byok
false
latency
1145
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770566025-AxHOwQjFmF8dr7jq9wuP"
upstream_id
"b9ddbda4-5716-4348-b073-75fd739d6b33"
total_cost
0.001552
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)