Run: 2026-02-24-01KJ8WN5E80HR4K98KTPA042TA

Run Details

Duration:
12.5s
Cost:
$0.010194
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"> The great gates groaned open as Thunder and I clattered across the cobblestones toward the stables. A broad-shouldered knight stood waiting, his scarlet cloak billowing like a war banner. His armor bore the dents of a hundred battles, and his eyes were sharp as tempered steel. "You're late, boy," he barked, though the corner of his mouth tugged into something that might have been a smirk. "I am Sir Roland. I don't coddle squires, and I don't repeat myself. See to your horse, then find me in the training yard before the last light dies." He turned on his heel and marched away, leaving no room for argument. </nc-section> <nc-section data-title="Version 2: Sir Roland's Greeting" data-color="green"> The stables smelled of hay and warm leather as I dismounted, patting Thunder's flank to calm him after the long ride. A tall knight emerged from the shadows between the stalls, his silver armor catching the last embers of the setting sun. He moved with quiet grace, as though every step had been carefully considered. "You must be Frederick," he said warmly, extending a gloved hand. "I am Sir Roland. I've heard good things about you from your village elder." He studied me for a long moment, then smiled. "Rest tonight. Your training begins at dawn, and I promise you — it will change everything you think you know about yourself." </nc-section> <nc-section data-title="Version 3: Sir Roland's Greeting" data-color="blue"> I had barely tied Thunder to the stable post when I heard the footsteps — slow, deliberate, like thunder rolling in from a distant storm. Sir Roland was older than I had imagined, his hair silver as moonlight, his face carved deep with age and grief. He stopped before me and said nothing for a long, uncomfortable moment. "They say the last dragon was spotted three days north of here," he finally murmured, his voice low and heavy. His pale eyes drifted to the horizon. "I requested a squire because I can no longer ride alone." He looked back at me then, and I saw something frightening in his gaze — not weakness, but certainty. "This will be dangerous, boy. More dangerous than anything you have ever dreamed." </nc-section>
created_at"2026-02-24T22:34:58.898Z" 2/24/2026, 10:34:58 PM
model"anthropic/claude-4.6-sonnet-20260217"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency455
moderation_latency(null)
generation_time12423
tokens_prompt318
tokens_completion624
native_tokens_prompt353
native_tokens_completion609
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"
usage0.010194
router(null)
provider_responses
0
endpoint_id"6d408764-7dd7-4626-bb87-a6cc1589bc86"
id"msg_012oVakQhfXGu8sbKQgRXtSg"
is_byokfalse
latency409
model_permaslug"anthropic/claude-4.6-sonnet-20260217"
provider_name"Anthropic"
status200
api_type"completions"
id"gen-1771972498-pKN2TvlfsFS0UMprUD6v"
upstream_id"msg_012oVakQhfXGu8sbKQgRXtSg"
total_cost0.010194
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