NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGYZZ47RJK0VHEC24VWVGYA5
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="Chapter 2: Sir Roland's Welcome - Version 1" data-color="red"> As I dismounted from Thunder, a towering figure emerged from the shadows of the stables. Sir Roland, his armor gleaming in the fading twilight, approached with a measured stride. His weathered face bore the scars of countless battles, and his eyes—sharp as steel—assessed me with an intensity that made my stomach tighten. "So, you are the new squire," he said, his voice gravelly and commanding. "I trust your journey was not too arduous. The road to greatness is long, boy, and it begins here, in the dirt and sweat of the stables. Are you prepared for what lies ahead?" Before I could answer, he turned and gestured toward the castle keep, where a single light burned in the highest tower. "That light burns for the last dragon," he whispered, almost to himself. "God help us all." </nc-section> <nc-section data-title="Chapter 2: Sir Roland's Welcome - Version 2" data-color="green"> A cheerful voice called out from near the stable doors. "Welcome, young Frederick! I am Sir Roland, knight of this realm and keeper of the stables." The man who greeted me was broad-shouldered and kind-faced, with a warm smile that immediately put me at ease. He helped me secure Thunder in a comfortable stall, speaking all the while about the castle's traditions and the training that awaited me. "You've chosen a noble path," he said, clapping me on the shoulder. "The knights here are honorable, and you'll learn from the best. Come, let me show you to the barracks. The evening meal will be served soon, and the other squires are eager to meet you." </nc-section> <nc-section data-title="Chapter 2: Sir Roland's Welcome - Version 3" data-color="blue"> I was brushing Thunder's mane when a shadow fell across the stable entrance. Sir Roland stood framed in the doorway, his silhouette imposing yet somehow weary. "Frederick," he said, his tone neither warm nor cold, simply matter-of-fact. He studied me with the gaze of someone who had learned to read men's character in an instant. "I knew your father," he continued slowly. "A good man. A brave man." He paused, choosing his words carefully. "These are turbulent times. The kingdom needs skilled warriors, but it also needs wisdom. I hope you possess both." He extended his hand. "Come. We have much to discuss, and little time in which to discuss it. There are... complications... you should know about." </nc-section>
created_at
"2026-02-08T16:04:51.747154+00:00"
Sunday, February 8th, 2026 at 4:04:51 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
491
moderation_latency
(null)
generation_time
5906
tokens_prompt
282
tokens_completion
563
native_tokens_prompt
335
native_tokens_completion
611
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
0.00339
router
(null)
provider_responses
0
id
"msg_01D7Z243toru2fKNfioowNZG"
status
200
is_byok
false
latency
491
endpoint_id
"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770566684-DZ0t3b7dJMecDBOEE6gf"
upstream_id
"msg_01D7Z243toru2fKNfioowNZG"
total_cost
0.00339
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
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%