NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Tool usage within Novelcrafter
Scenario
Create alternate prose sections
Run ID
2026-02-08-01KGYZXAMEC27W7E07TQWDDE9P
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: Sir Roland's Stern Welcome" data-color="red"> As I dismounted from Thunder, a gruff voice called out behind me. "You must be the new squire." I turned to see a towering figure in burnished armor, his weathered face etched with scars from countless battles. Sir Roland, the castle's most formidable knight, stood with arms crossed, his piercing gaze assessing me like a blacksmith examining raw ore. "I trust you're ready for hard work, boy. There's no room for weakness in these halls. Come—we'll get your horse settled, then I'll show you to the barracks." His tone was harsh, but something in his eyes suggested a hidden kindness beneath the gruff exterior. </nc-section> <nc-section data-title="Version 2: Sir Roland's Courtly Greeting" data-color="green"> A tall knight emerged from the stable entrance, his armor polished to a mirror shine. "Welcome, young Frederick!" Sir Roland's voice was warm and inviting, a stark contrast to his intimidating appearance. He clasped my shoulder firmly, a genuine smile crossing his face. "I am Sir Roland, and I shall oversee your training here. Come, let us see to your magnificent steed first—Thunder is a fine name for such a noble creature. Then we shall take refreshment in the great hall, where you can meet the other squires and hear tales of the kingdom's past glories." </nc-section> <nc-section data-title="Version 3: Sir Roland's Cryptic Encounter" data-color="blue"> A shadow moved across the stable yard. Sir Roland emerged from the twilight, his silhouette framed by the dying sunlight. He said nothing at first, merely studying me with an intensity that made my skin prickle. "So, you are Frederick," he finally spoke, his voice low and measured. "Word reaches even us in these remote halls. There is much you need to know about this place—and much that cannot be spoken aloud." He gestured toward the castle's highest tower, where a single light burned in a narrow window. "But first, tend to your horse. We will speak more when darkness falls." </nc-section>
created_at
"2026-02-08T16:03:51.808988+00:00"
Sunday, February 8th, 2026 at 4:03:51 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
942
moderation_latency
204
generation_time
5183
tokens_prompt
282
tokens_completion
458
native_tokens_prompt
335
native_tokens_completion
508
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
0.002875
router
(null)
provider_responses
0
id
"c87532c4-6527-4a71-8cfc-fea4b3d550b8"
status
200
is_byok
false
latency
942
endpoint_id
"d000261c-5aeb-47d1-ac87-ad64dbe1cdb6"
provider_name
"Amazon Bedrock"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770566625-2gHVZxqKlyM8R0bPGR0R"
upstream_id
"c87532c4-6527-4a71-8cfc-fea4b3d550b8"
total_cost
0.002875
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%