Model

Claude Sonnet 4.5

Test

Tool usage within Novelcrafter

Scenario

Create alternate prose sections

Run ID

2026-02-08-01KGYYCQMG0PWMV86Z44DEEQRY

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

AI
<nc-section data-title="Version 1: The Stern Welcome" data-color="red"> Sir Roland emerged from the shadows of the stable, his armor dulled by years of battle. His face was scarred, one eye clouded with age, and his expression held no warmth. "You're late, boy," he growled, not bothering to help as I dismounted from Thunder. "The others arrived at dawn. I don't tolerate tardiness." He circled me slowly, his critical gaze taking in every detail of my worn travel clothes and dust-covered boots. "You think you have what it takes to become a knight? You look like a farmer's son playing dress-up." His words stung, but I held my ground, meeting his one good eye with determination. A thin smile crossed his lips. "Good. At least you're not a coward. Take your horse to the stable master. Training begins before sunrise tomorrow. Don't be late again." </nc-section> <nc-section data-title="Version 2: The Friendly Mentor" data-color="green"> "Ho there, young squire!" A booming voice called out as I approached the stables. Sir Roland strode forward with a broad smile, his polished armor gleaming in the fading sunlight. He was a mountain of a man, but his eyes twinkled with kindness. "You must be Frederick! We've been expecting you." He extended a calloused hand and shook mine firmly. "That's a fine horse you have there. Thunder, is it?" He patted the stallion's neck with the confidence of someone who understood animals well. "Come, let me show you where he'll be staying. The stable master here is the best in three kingdoms—your companion will be well cared for." As we walked, he placed a fatherly hand on my shoulder. "I know the journey must have been long. Get yourself settled tonight, have a warm meal, and we'll begin your training tomorrow. You're going to do well here, Frederick. I can sense it." </nc-section> <nc-section data-title="Version 3: The Mysterious Introduction" data-color="blue"> The stable doors creaked open, and a figure stepped into the dying light. Sir Roland was neither young nor old, his face unreadable beneath a hood despite the warmth of the evening. "Frederick," he said quietly, as if he'd known I would arrive at precisely this moment. His voice carried an odd quality—not unkind, but distant, as though his thoughts were always elsewhere. He studied Thunder with unusual intensity, then placed his hand on the horse's forehead. Thunder, normally spirited and restless, became perfectly still. "Your mount has carried you far," Sir Roland murmured. "He bears the mark of the old bloodlines. Curious." His eyes—a peculiar shade of silver—fixed on me. "There is much to teach you, Frederick, but first, you must learn to see what others miss. Come. Before we stable your horse, there is something in the east tower I would show you. The stars are aligning tonight, and some lessons cannot wait for dawn." </nc-section>
created_at"2026-02-08T15:37:28.966183+00:00" Sunday, February 8th, 2026 at 3:37:28 PM GMT+00:00
model"anthropic/claude-4.5-sonnet-20250929" 
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1585
moderation_latency150
generation_time14241
tokens_prompt282
tokens_completion655
native_tokens_prompt335
native_tokens_completion706
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/" 
is_byokfalse
finish_reason"stop" 
native_finish_reason"stop" 
usage0.011595
router(null)
provider_responses
0
id"e6ae4241-b911-4ffe-9c19-ce3d6a6d056f" 
status200
is_byokfalse
latency1585
endpoint_id"d8bee848-f020-454a-b2be-4a7ce868f99f" 
provider_name"Amazon Bedrock" 
model_permaslug"anthropic/claude-4.5-sonnet-20250929" 
api_type"completions" 
id"gen-1770565033-iXJ6Xve0nnafgK6ccILj" 
upstream_id"e6ae4241-b911-4ffe-9c19-ce3d6a6d056f" 
total_cost0.011595
cache_discount(null)
upstream_inference_cost0
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%