NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGZ093QMRT1C2EYP8BX2AYVB
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 gruff voice called out from the shadows of the stables. "You must be the new squire." Sir Roland emerged, his weathered face scarred from countless battles, his armor gleaming despite the fading light. He was broader than I expected, with a grip like iron when he clasped my shoulder. "I am Sir Roland, master of arms for this castle. We have much work to do if you're to survive what's coming." His eyes held a darkness I didn't yet understand—a knowledge of horrors yet to unfold. "Come. The dragons won't wait for a well-rested boy." </nc-section> <nc-section data-title="Chapter 2: Sir Roland's Welcome - Version 2" data-color="green"> A jovial laugh echoed from the stables as a tall, kind-faced knight stepped forward to greet me. "Welcome, Frederick! I am Sir Roland, and I've been expecting you." He took Thunder's reins with practiced ease, his movements fluid and graceful. "What a fine steed you have here. Come, let me show you around before the evening meal. The castle can seem overwhelming at first, but you'll find it becomes home soon enough." He gestured warmly toward the castle keep. "The other squires are eager to meet you. We train hard here, but we also celebrate our victories together." </nc-section> <nc-section data-title="Chapter 2: Sir Roland's Welcome - Version 3" data-color="blue"> Sir Roland emerged from the stables with measured steps, his silver-streaked beard catching the last rays of sunlight. He studied me carefully, as if appraising my worth with a single glance. "Frederick," he said, his voice measured and thoughtful. "I knew your father once. He was a good man, though his path did not lead to knighthood." He paused, handing me a small token—a dragon scale, black as obsidian. "This castle holds secrets, boy. Some are meant to stay buried. But if you're to train here, you must understand: we guard more than just these walls. We guard the last hope of this realm." He turned back toward the stables. "Rest tonight. Tomorrow, your real education begins." </nc-section>
created_at
"2026-02-08T16:10:18.804183+00:00"
Sunday, February 8th, 2026 at 4:10:18 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
961
moderation_latency
381
generation_time
5408
tokens_prompt
282
tokens_completion
502
native_tokens_prompt
335
native_tokens_completion
542
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
0.003045
router
(null)
provider_responses
0
id
"a509977d-aef4-48a6-ae0d-c317a6da16f0"
status
200
is_byok
false
latency
957
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770567012-onJkLzXi9FxdHu05zE8B"
upstream_id
"a509977d-aef4-48a6-ae0d-c317a6da16f0"
total_cost
0.003045
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%