Run: 2026-02-18-01KHQ93D1FRXYQDEPB2MJS0A9M

Run Details

Duration:
13.0s
Cost:
$0.009948
Provider:
Anthropic

Evaluation summary

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

AI
<nc-section data-title="Version 1: Sir Roland's Greeting" data-color="red"> As I dismounted Thunder near the stables, a broad-shouldered knight strode towards me with the confidence of a man who had seen a hundred battles. His armor bore the crest of the kingdom — a silver falcon on a field of crimson — and his grey-streaked beard gave him an air of weathered authority. "You must be Frederick," he said, his voice low and measured, like the growl of a distant storm. "I am Sir Roland." He looked me up and down with sharp, steel-blue eyes, and I felt suddenly very small. "You're late," he added, turning on his heel. "Follow me, boy. The horses won't tend to themselves, and neither will your training." </nc-section> <nc-section data-title="Version 2: Sir Roland's Greeting" data-color="green"> The stables smelled of hay and leather as I led Thunder through the castle gates. A knight emerged from the shadows of the stable doorway, his helmet tucked under one arm and a warm smile breaking across his sun-weathered face. "Ah, young Frederick! We've been expecting you." Sir Roland extended a gauntleted hand and shook mine with a firm, hearty grip. "Your father was a fine man — one of the best knights I ever rode beside." His eyes softened with a fond memory before returning to me with quiet encouragement. "I see much of him in you already. Come, let us get your horse settled, and then I shall show you to your quarters. Tomorrow, your new life begins." </nc-section> <nc-section data-title="Version 3: Sir Roland's Greeting" data-color="blue"> I had barely tied Thunder's reins to the stable post when I heard the clash of steel nearby. I turned to find a knight locked in a fierce sparring match with a training dummy, his sword singing through the air in precise, devastating arcs. He stopped abruptly when he noticed me, driving his blade into the earth and regarding me with a cool, unreadable expression. "Frederick," he said — not a question, but a statement. Sir Roland pulled his sword free and sheathed it in one fluid motion. "You've arrived on an interesting evening." He glanced briefly toward the darkening treeline beyond the castle walls, as though something lingered there in the gathering shadows. "There are things happening in this kingdom that your training cannot wait for." He turned to me, his voice dropping to barely above a whisper. "Tell me, boy — have you ever heard of the Last Dragon?" </nc-section>
created_at"2026-02-18T02:26:21.726281+00:00" 2/18/2026, 2:26:21 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency575
moderation_latency(null)
generation_time12605
tokens_prompt318
tokens_completion623
native_tokens_prompt336
native_tokens_completion596
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.009948
router(null)
provider_responses
0
id"msg_01PqEkwEQLh8K4ckn2FzgCDY"
status200
is_byokfalse
latency420
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
provider_name"Anthropic"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381568-5tYbZG1RF4YvvAdlotoV"
upstream_id"msg_01PqEkwEQLh8K4ckn2FzgCDY"
total_cost0.009948
cache_discount(null)
upstream_inference_cost0
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
no eval