NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGYXBDAHSWVMAT9CXEEX2FCX
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: The Stern Welcome" data-color="red"> As I dismounted from Thunder, a gruff voice called out from the shadows of the stables. "So, you're the new squire." Sir Roland emerged, his weathered face scarred from countless battles. His armor gleamed in the fading light, and his grip on my shoulder was firm, almost crushing. "I've trained a hundred squires before you, boy, and most of them couldn't handle a day in the training yard. We'll see what you're made of." </nc-section> <nc-section data-title="Version 2: The Friendly Mentor" data-color="green"> A cheerful laugh echoed from the stables as a tall knight with kind eyes approached me. "Welcome, Frederick! I'm Sir Roland, and I'll have the pleasure of overseeing your training." He clasped my hand warmly and helped me guide Thunder toward the stable doors. "Don't worry—I remember what it was like to arrive here for the first time, trembling with excitement and fear. By the time you leave, you'll be a true knight. Come, let's get your horse settled, and I'll show you to your quarters." </nc-section> <nc-section data-title="Version 3: The Mysterious Encounter" data-color="blue"> A figure in full plate armor stepped out from behind a wooden post, moonlight reflecting off the polished metal. "You must be Frederick," Sir Roland said, his voice measured and contemplative. He studied me carefully, as if trying to see something beyond what was visible. "I sense something different about you, something the castle hasn't seen in generations. Come—we have much to discuss, but not here. Follow me to the tower when you've tended to your horse. There are secrets in this place you need to know." </nc-section>
created_at
"2026-02-08T15:19:07.068692+00:00"
Sunday, February 8th, 2026 at 3:19:07 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
363
moderation_latency
(null)
generation_time
4346
tokens_prompt
282
tokens_completion
390
native_tokens_prompt
335
native_tokens_completion
427
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
0.00247
router
(null)
provider_responses
0
id
"msg_014JL2jREMB2WxHFAknoa2GA"
status
200
is_byok
false
latency
363
endpoint_id
"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770563941-MnbnNtFwjZrcLiOCiTpt"
upstream_id
"msg_014JL2jREMB2WxHFAknoa2GA"
total_cost
0.00247
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%