Run: 2026-02-24-01KJ8W6109T16HQ4K8MYSEF2CP

Run Details

Duration:
26.3s
Cost:
$0.028390
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
Here are three alternate versions of the next scene: <nc-section data-title="Version 1: A Stern Welcome" data-color="red"> The stables loomed ahead, their weathered timber frames darkened by years of rain and sun. As Frederick dismounted Thunder, his boots squelching into the mud-churned ground, a broad-shouldered figure emerged from the shadows of the stable door. "You're late," the man said, his voice like gravel dragged across iron. He wore a surcoat bearing the silver wyrm of House Ashford, and a longsword hung at his hip as naturally as a limb. His face was a map of old battles — a scar cleaving his left brow, a jaw set like a fortress gate. "Sir Roland?" Frederick managed, straightening his travel-worn tunic. "That's *Sir Roland, my lord* to you, boy. At least until you've earned the right to drop the courtesy." The knight's steel-grey eyes swept over Frederick from head to toe, measuring him the way a butcher measures a cut of meat. "Stable your horse. Find the quartermaster. And for the love of all the old gods, wash yourself. You smell like the road." He turned on his heel and strode away, his cloak snapping behind him. Frederick stood alone in the fading light, his heart hammering, wondering if he had made a terrible mistake. </nc-section> <nc-section data-title="Version 2: A Warm Reception" data-color="green"> Frederick had barely swung his leg over the saddle when a hearty laugh rang out across the stable yard. "Well, well! You must be the lad old Brennan sent us!" A knight emerged from the stables, wiping his hands on a rag that had clearly seen better days. He was tall, with sun-weathered skin and a thick chestnut beard streaked with the first threads of silver. Despite his noble bearing, there was straw in his hair and what appeared to be horse liniment on his sleeve. "Sir Roland?" Frederick asked, offering a hasty bow. "The very same. And you needn't bow so deep — save that for the Duke." Sir Roland clapped a warm hand on Frederick's shoulder and peered at Thunder with an appreciative eye. "Fine animal. You've taken good care of him on the road, I can tell. That speaks well of you, young Frederick. A man who tends to his horse before himself is a man worth training." He took Thunder's reins with practiced ease and gestured toward the castle with a nod of his head. "Come. The kitchen's still warm, and Cook always keeps a pot of stew on for late arrivals. We'll get some food in your belly, and tomorrow — tomorrow the real work begins." Frederick felt the knot of anxiety in his chest loosen, just a little, as he followed the knight into the amber glow of the castle courtyard. </nc-section> <nc-section data-title="Version 3: A Mysterious Encounter" data-color="blue"> The stables were quieter than Frederick had expected. No stablehands rushed to greet him. No torches burned along the posts. Only the soft nickering of unseen horses broke the silence as he led Thunder through the open gate. Then he noticed the man sitting on an overturned bucket in the corner, sharpening a dagger by the pale light of a single lantern. He wore no armor — just a simple linen shirt and leather breeches — but the way he held himself, coiled and precise, spoke of someone who had long ago learned the language of violence. "Frederick of Thornwall," the man said without looking up. It was not a question. "Yes, sir. I'm looking for Sir Roland. I was told he would—" "You were told correctly." The man finally raised his gaze. His eyes were dark, almost black, and they held a strange intensity — as though he were looking not at Frederick but *through* him, searching for something hidden beneath the skin. "Tell me, boy. On your ride here, did you see anything unusual? Anything in the sky, perhaps… just before sunset?" Frederick's blood ran cold. He *had* seen something — a shape, vast and winged, cutting silently through the clouds far to the north. He had told himself it was a trick of the light. Sir Roland's expression told him it was not. </nc-section>
created_at"2026-02-24T22:26:42.833Z" 2/24/2026, 10:26:42 PM
model"anthropic/claude-4.6-opus-20260205"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1520
moderation_latency212
generation_time25731
tokens_prompt318
tokens_completion1099
native_tokens_prompt353
native_tokens_completion1065
native_tokens_completion_images(null)
native_tokens_reasoning52
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"
usage0.02839
router(null)
provider_responses
0
endpoint_id"a8708fb9-08ea-43bb-a3b1-165c87ef09df"
id"95955b88-1d77-45b6-ae7e-d5483fc7372c"
is_byokfalse
latency1487
model_permaslug"anthropic/claude-4.6-opus-20260205"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771972002-HBlqnQAAL3gA97qxqrR0"
upstream_id"95955b88-1d77-45b6-ae7e-d5483fc7372c"
total_cost0.02839
cache_discount(null)
upstream_inference_cost0
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
no eval