Run: 2026-07-01-01KWE9H4P7DY7DXKF884XYA44P

Run Details

Duration:
18.2s
Cost:
$0.013700
Provider:
Amazon Bedrock

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="Chapter 1: The Greeting" data-color="red"> As Thunder's hooves clattered against the cobblestones of the stable yard, a broad-shouldered figure emerged from the shadows of the hayloft. Sir Roland's armor caught the last rays of sunlight, and his weathered face broke into a welcoming grin beneath his graying beard. "You must be the new squire," he called out, striding forward with the confident gait of a man who had spent decades in service to the crown. "Frederick, is it? I am Sir Roland, and I've been expecting you." He extended a calloused hand, his grip firm as he helped Frederick dismount. "That's a fine horse you have there. Thunder, you say? A name that suits him well." Roland's eyes twinkled with something between amusement and appraisal as he looked the young squire up and down. "Come, let's get you settled. We have much to discuss before your training begins at dawn." </nc-section> <nc-section data-title="Chapter 1: An Unexpected Welcome" data-color="green"> The stable doors creaked open just as Frederick swung down from his saddle, boots hitting the packed earth with a soft thud. A voice, gruff but not unkind, called out from within the dim interior. "Well now, what have we here?" Sir Roland stepped into the fading light, his chainmail glinting softly. He was younger than Frederick had expected, with sharp eyes that missed nothing and a scar that traced his jawline like a badge of honor. "The new squire, I presume? Word travels fast in these halls." Frederick straightened his posture, suddenly aware of the dust covering his traveling clothes. "Yes, sir. Frederick, son of—" "I know who your father is, lad." Roland's expression softened slightly as he took Thunder's reins, running a practiced hand along the stallion's flank. "Fine horse. He'll need rest and water after that ride." He gestured toward the stable's interior. "Come, I'll show you where to bed him down. You and I have quite the journey ahead of us—training a squire is no small task, especially one who arrives riding like the wind itself." The knight's laugh was warm, breaking the tension of the long journey, and Frederick felt, for the first time since leaving home, that he might belong here after all. </nc-section> <nc-section data-title="Chapter 1: The Knight's Welcome" data-color="blue"> The stables smelled of hay and leather, familiar scents that reminded Frederick of home despite the unfamiliar surroundings. As he led Thunder toward an empty stall, a tall figure clad in polished steel stepped from the shadows, torch light dancing across an ornate breastplate emblazoned with the kingdom's crest. "Halt there, young traveler," the knight commanded, though his tone carried more curiosity than threat. "State your business at this hour." "Frederick, sir. I've come to begin my training as squire." He fumbled for the sealed letter his father had given him, hands still trembling slightly from the long ride. The knight took the parchment, breaking the wax seal with practiced ease. As he read, his stern expression melted into something more approachable. "Ah, so you're the one Lord Aldric spoke so highly of. I am Sir Roland, master-at-arms for this castle." He clasped Frederick's shoulder with surprising gentleness for a man of his size. "You've traveled far, and the hour grows late. Let us tend to your horse first—a good squire always cares for his mount before himself. Then we shall discuss what awaits you in the coming days." There was something reassuring in the knight's manner, a steadiness that made the vast castle feel slightly less daunting to the young squire standing in its shadow. </nc-section>
created_at"2026-07-01T07:33:08.946Z" 7/1/2026, 7:33:08 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2987
moderation_latency(null)
generation_time18197
tokens_prompt318
tokens_completion977
native_tokens_prompt435
native_tokens_completion1283
native_tokens_completion_images(null)
native_tokens_reasoning34
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.0137
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01DTpHkjpgifbNYNYXdmEmdF"
is_byokfalse
latency1544
model_permaslug"anthropic/claude-sonnet-5-20260630"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.17.0; linux; x64))"
http_referer(null)
request_id"req-1782891188-iOktk0hZ24p9qsSFukWV"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891188-vyDwnIkJUZKcLwdRAWeX"
upstream_id"msg_01DTpHkjpgifbNYNYXdmEmdF"
total_cost0.0137
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

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