NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGYXX17Z7JCSDBC3DPBT0R4T
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: The Greeting (Version 1)" data-color="red"> As I dismounted from Thunder, a grizzled figure emerged from the shadows of the stable archway. Sir Roland, the castle's master-at-arms, stood before me with arms crossed and a stern expression etched into his weathered face. His armor bore the scars of countless battles, dents and scratches telling stories of glory and hardship. "So, you're the new squire," he said, his voice like grinding stone. "I hope you're prepared for the trials ahead, boy. This castle shows no mercy to the weak or the unprepared." He eyed me critically, as if measuring my worth in a single glance. </nc-section> <nc-section data-title="Chapter 2: The Greeting (Version 2)" data-color="green"> A warm hand clapped me on the shoulder just as I was leading Thunder toward the stables. I turned to find Sir Roland, the knight whose reputation preceded him—a man known for his kindness as much as his skill with a blade. His face broke into a genuine smile beneath his trimmed beard. "Welcome, Frederick! I've heard good things about your lineage," he said warmly. "Come, let me show you to the quarters, and tomorrow we'll begin your training properly. Tonight, rest well. You'll need your strength." He took Thunder's reins with practiced ease, his movements gentle and assured. </nc-section> <nc-section data-title="Chapter 2: The Greeting (Version 3)" data-color="blue"> The stable doors swung open with a loud creak, and Sir Roland stepped into the fading twilight. He was neither particularly imposing nor especially welcoming—simply a man of middle years with intelligent eyes that seemed to study everything they beheld. "Frederick, I presume," he said, more as a statement than a question. "I am Sir Roland. Your training begins at dawn, but first, there are preparations to be made. The castle steward will see to your accommodations." He paused, tilting his head slightly. "Tell me, what drives a young squire to seek service in a place where dragons once flew? That answer will tell me much about your character." </nc-section>
created_at
"2026-02-08T15:28:45.248743+00:00"
Sunday, February 8th, 2026 at 3:28:45 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
788
moderation_latency
(null)
generation_time
5637
tokens_prompt
282
tokens_completion
469
native_tokens_prompt
335
native_tokens_completion
516
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
0.002915
router
(null)
provider_responses
0
id
"msg_012qf5K6QJNLybfYtRv946qN"
status
200
is_byok
false
latency
788
endpoint_id
"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770564519-u81qVL0hHN6moBzOuoUS"
upstream_id
"msg_012qf5K6QJNLybfYtRv946qN"
total_cost
0.002915
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%