NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGYXN866HNSHRZ64V1RZG448
Model input
System
You are an expert fantasy novel author. You are working on a novel called "The Chronicles of the Last Dragon". The following tools are available to you: - <nc-section> Use this tool to create a new section of prose. Arguments: - "data-title": The title of the section. - "data-color": Any color of (red, green, blue, yellow, purple, orange, pink, brown). Example usage: <nc-section data-title="Chapter 1: The Arrival" data-color="blue"> Frederick, a young squire, arrives at the castle to begin his training. </nc-section>
User/Human
The story so far: <storySoFar> Frederick, a young squire, arrives at the castle to begin his training. </storySoFar>
AI
My horse, a majestic stallion named Thunder, galloped across the open field. The wind whipped through my hair as I rode towards the castle gates. The sun was setting, casting a warm glow over the stone walls. I could see the banners of the kingdom fluttering in the breeze.
User/Human
Continue the story with the following instructions: """The local knight, Sir Roland, greets Frederick near the stables.""" Create 3 alternate prose sections that continue the story. - Version 1 (red) - Version 2 (green) - Version 3 (blue)
Model response
Messages
Meta
AI
<nc-section data-title="Version 1: Sir Roland's Stern Welcome" data-color="red"> As I dismounted from Thunder, a gruff voice called out from the shadows of the stable. "Another fresh-faced squire, I see." Sir Roland emerged, his scarred face weathered by countless battles. His armor clinked with each heavy step. He looked me up and down with eyes that seemed to pierce through my very soul. "Don't think that riding well means you're ready for what's to come, boy. I've seen a hundred like you arrive full of dreams. Half don't survive their first month." He grabbed Thunder's reins from my hands. "Get yourself to the barracks. Supper's already been served, but you can scrape whatever's left from the kitchens. Training begins at dawn—and I suggest you get some rest, because you'll need it." </nc-section> <nc-section data-title="Version 2: Sir Roland's Cautious Kindness" data-color="green"> A tall knight in polished silver armor stepped forward from near the stables, his face kind but serious. "Welcome, young Frederick," Sir Roland said, extending a calloused hand. "I am Sir Roland, master of the guard here at the castle. Your reputation precedes you—the blacksmith's son with a true gift for horsemanship, I'm told." He smiled warmly and took Thunder's reins with practiced ease. "This is a fine animal. You've treated him well, I can see. That speaks volumes about your character." He gestured toward the castle with a gentle sweep of his arm. "Come, let me show you to your quarters. The journey here must have been long and weary. We have much to discuss about your training, but first, you should eat and rest. Tomorrow, your real education begins." </nc-section> <nc-section data-title="Version 3: Sir Roland's Mysterious Encounter" data-color="blue"> Before my boots could fully touch the cobblestones of the courtyard, a figure emerged from the stable doorway shrouded in the dying light of dusk. Sir Roland was taller than I expected, his armor bearing strange runes I didn't recognize. His eyes held an ancient wisdom that seemed older than the castle itself. "Frederick," he said, though I had never told him my name. "The dragon dreams have been calling for a new guardian, and it seems fate has answered." He moved closer, and I noticed his hand rested upon a sword hilt carved with images of scales and fire. "Tell me, boy—have you ever heard the legends of the Last Dragon? Because I fear your arrival here is no coincidence. There are forces at work far greater than knight's training or squire's duties." He studied my face intently. "The question is: are you ready to learn the truth?" </nc-section>
created_at
"2026-02-08T15:24:31.178311+00:00"
Sunday, February 8th, 2026 at 3:24:31 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
545
moderation_latency
172
generation_time
6213
tokens_prompt
282
tokens_completion
602
native_tokens_prompt
335
native_tokens_completion
644
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
0.003555
router
(null)
provider_responses
0
id
"c06b9803-f1da-419a-bdd6-46d960a52932"
status
200
is_byok
false
latency
545
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770564264-KeukdIcdFsLc8YQeVPvI"
upstream_id
"c06b9803-f1da-419a-bdd6-46d960a52932"
total_cost
0.003555
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
Evaluation details
Result
Evaluator
Details
Meta Data
Pass
Match blue prose section
/<nc-section data-title="[^"]*" data-color="blue">[^<]+<\/nc-section>/
n/a
Pass
Match green prose section
/<nc-section data-title="[^"]*" data-color="green">[^<]+<\/nc-section>/
n/a
Pass
Match red prose section
/<nc-section data-title="[^"]*" data-color="red">[^<]+<\/nc-section>/
n/a
100.0000%