Run: 2026-07-01-01KWEAFSSFGPPZFCDY5C965SW7

Run Details

Duration:
14.9s
Cost:
$0.010680
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 Arrival (Version 1)" data-color="red"> As Thunder's hooves clattered against the cobblestones leading to the stables, a broad-shouldered figure emerged from the shadows of the wooden structure. His armor caught the last rays of sunlight, and a jagged scar ran across his weathered cheek. "You must be the new squire," the man said, his voice gravelly like stones grinding together. "I am Sir Roland. I've trained a dozen boys before you, and buried the memory of the ones who couldn't handle the sword." He crossed his arms, sizing Frederick up with sharp, assessing eyes. "Let's see if you're made of sterner stuff than the last one." Frederick swallowed hard, dismounting quickly, unsure if the knight was jesting or deadly serious. </nc-section> <nc-section data-title="Chapter 1: The Arrival (Version 2)" data-color="green"> Near the stables, a warm laugh echoed through the courtyard as a tall knight strode forward, his golden hair catching the sunset's glow. He wore his armor comfortably, like an old friend, and his smile reached all the way to his eyes. "Well, well! You must be young Frederick!" Sir Roland exclaimed, extending a hand in greeting. "I heard tales of your father's swordsmanship—big shoes to fill, lad, but I have a feeling you'll manage just fine." He clapped Frederick on the shoulder with surprising gentleness. "Come, let's get Thunder settled in. The stable boy will treat him well, and then I'll show you where you'll be staying. You must be famished after that ride!" There was something immediately reassuring about the knight's easy manner, and Frederick felt the tension in his shoulders begin to melt away. </nc-section> <nc-section data-title="Chapter 1: The Arrival (Version 3)" data-color="blue"> The stable door creaked open, and a knight emerged, his movements measured and deliberate. Sir Roland was not a large man, but he carried himself with the quiet confidence of someone who had seen countless battles and emerged victorious through skill rather than brute strength. "Frederick," he said simply, not as a question but as a statement of fact. His pale blue eyes studied the young squire with quiet intensity. "I've been expecting you. Your reputation precedes you—word travels fast in these halls." He gestured toward the stable. "Tend to your horse first. A true knight always cares for his steed before himself. We'll speak more once you've settled your affairs." There was wisdom in his words, and Frederick nodded, understanding this would be a mentor who taught through both action and careful words, each one chosen with purpose. </nc-section>
created_at"2026-07-01T07:49:53.596Z" 7/1/2026, 7:49:53 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4118
moderation_latency(null)
generation_time14902
tokens_prompt318
tokens_completion725
native_tokens_prompt435
native_tokens_completion981
native_tokens_completion_images(null)
native_tokens_reasoning46
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"
usage0.01068
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_01Umu7sp4dQ3kh6dmpyH2wfp"
is_byokfalse
latency2356
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-1782892193-ZLwGy32Qhh3dRazDmt6z"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782892193-GBxrePMqZF977U7H5FzV"
upstream_id"msg_01Umu7sp4dQ3kh6dmpyH2wfp"
total_cost0.01068
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