Run: 2026-02-18-01KHQ94P34Y0MZ0Z07ANT9CXA4

Run Details

Duration:
8.3s
Cost:
$0.007938
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 3 alternate prose sections continuing the story: <nc-section data-title="Version 1: Sir Roland's Greeting" data-color="red"> As I dismounted Thunder near the stables, a broad-shouldered knight in gleaming armor strode towards me. His face was weathered and stern, bearing the scars of a hundred battles. "You must be Frederick," he said, his voice like gravel grinding beneath iron boots. "I am Sir Roland. I have trained many squires in my time, boy, and most of them have failed me." He grabbed Thunder's reins from my hands without ceremony. "We shall see if you are made of sterner stuff. Do not disappoint me." </nc-section> <nc-section data-title="Version 2: Sir Roland's Greeting" data-color="green"> The stables were warm and smelled of hay and horses. A tall knight with kind eyes and a silver-streaked beard stepped forward, extending a gauntleted hand with a welcoming smile. "Ah, young Frederick! I am Sir Roland. We have been expecting you." He clapped me heartily on the shoulder, nearly knocking me off my feet. "Come, come — let us get Thunder settled and find you some supper. Training begins at dawn, but tonight, you are our honored guest." </nc-section> <nc-section data-title="Version 3: Sir Roland's Greeting" data-color="blue"> I had barely tied Thunder to the post when a shadow fell over me. Sir Roland was older than I had imagined — perhaps sixty winters — yet he moved with the quiet grace of a predator. His dark eyes studied me in silence for a long moment before he spoke. "Frederick," he said softly, almost to himself. "The boy from the valley." He paused, glancing towards the distant mountains where storm clouds gathered on the horizon. "Tell me, child... have you ever seen a dragon?" A chill ran down my spine that had nothing to do with the cold evening air. </nc-section>
created_at"2026-02-18T02:26:59.376656+00:00" 2/18/2026, 2:26:59 AM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency682
moderation_latency117
generation_time8003
tokens_prompt318
tokens_completion467
native_tokens_prompt336
native_tokens_completion462
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"
usage0.007938
router(null)
provider_responses
0
id"9417d157-d1a2-4a83-93b1-b1d3f9a5cec7"
status200
is_byokfalse
latency682
endpoint_id"83d802cb-44f2-45a0-a9d5-cb9bf79777c8"
provider_name"Amazon Bedrock"
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
api_type"completions"
id"gen-1771381610-0PBJ9zMqXRKNjGQ9HGtB"
upstream_id"9417d157-d1a2-4a83-93b1-b1d3f9a5cec7"
total_cost0.007938
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