Run: 2026-02-24-01KJ8X085P890CKVCMV0QG0K26

Run Details

Duration:
12.4s
Cost:
$0.010524
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 2: The Greeting (Version 1)" data-color="red"> The stable doors groaned as I dismounted Thunder, my boots sinking into the soft mud of the courtyard. Before I could gather my saddlebags, a towering figure emerged from the shadow of the stables — Sir Roland, his armor scarred from a dozen campaigns, his eyes hard as flint. He looked me up and down with barely concealed disdain. "So you're the boy they've sent me," he said, his voice a low rumble like distant thunder. "You look like a stiff breeze would knock you flat." He turned sharply on his heel. "Come. We'll see what you're made of before the sun fully sets. I have little patience for weakness, squire." </nc-section> <nc-section data-title="Chapter 2: The Greeting (Version 2)" data-color="green"> I had barely looped Thunder's reins around the stable post when I heard a warm, bellowing laugh cut through the evening air. Sir Roland strode toward me with his arms wide open, his silver-streaked beard catching the last light of the sun. He was broader than I had imagined, yet there was a gentleness in his weathered face that instantly put me at ease. "Frederick! By the old gods, you look just like your father did at your age!" He clasped my shoulder firmly, nearly buckling my knees. "Welcome, lad. These stables, this castle — they'll be your home now. Come, let me show you around before supper grows cold." </nc-section> <nc-section data-title="Chapter 2: The Greeting (Version 3)" data-color="blue"> The stables were quiet save for the soft shuffling of horses when a lone figure stepped out from within, lantern in hand. Sir Roland was younger than I had expected — perhaps forty, with sharp, calculating eyes that assessed me the way a merchant assesses a gemstone. He said nothing at first, simply holding the lantern up to illuminate my face. "You rode hard to get here," he finally said, noticing the road dust caked across my cloak. It was not a question. He handed me the lantern and took Thunder's reins himself, guiding the stallion gently into the stable. "A knight who cannot tend his own horse has already failed." He glanced back at me with a faint, enigmatic smile. "Watch carefully, Frederick. Your first lesson has already begun." </nc-section>
created_at"2026-02-24T22:41:02.146Z" 2/24/2026, 10:41:02 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency968
moderation_latency180
generation_time12093
tokens_prompt318
tokens_completion631
native_tokens_prompt353
native_tokens_completion631
native_tokens_completion_images(null)
native_tokens_reasoning49
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"
usage0.010524
router(null)
provider_responses
0
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
id"9b06caf4-81a8-4ff9-9adf-39b0569913c5"
is_byokfalse
latency968
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Amazon Bedrock"
status200
api_type"completions"
id"gen-1771972862-Tqiz4uzAylRaWC2E0yEf"
upstream_id"9b06caf4-81a8-4ff9-9adf-39b0569913c5"
total_cost0.010524
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