Run: 2026-07-01-01KWE9W82FYN1AWW8JN6P3KNEA

Run Details

Duration:
10.8s
Cost:
$0.007890
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: A Knight's Welcome" data-color="red"> As Thunder's hooves clattered against the cobblestones near the stables, a broad-shouldered man stepped out from the shadows of the archway. His armor bore the dents and scratches of countless battles, and a long scar traced his jaw. "You must be the new squire," he said, his voice gruff but not unkind. "I am Sir Roland. Dismount, boy, and let's see what kind of stuff you're made of." Frederick swallowed hard, sliding down from his saddle, suddenly aware of how small he felt beneath the knight's piercing gaze. </nc-section> <nc-section data-title="Chapter 1: A Knight's Welcome" data-color="green"> The stable boys scattered as Thunder trotted to a halt, and from among the hay bales emerged a tall figure with kind eyes and a warm smile. "Welcome, young squire!" Sir Roland called out, extending a calloused hand. "I've heard much about your journey here. Come, let's get your horse settled, and then we'll talk about what awaits you in these halls." Frederick felt a wave of relief wash over him—perhaps this place wouldn't be as intimidating as he'd feared. </nc-section> <nc-section data-title="Chapter 1: A Knight's Welcome" data-color="blue"> A figure leaned casually against the stable door, arms crossed, watching Frederick's approach with an amused expression. "Well, well," Sir Roland mused, pushing off from the wooden post. "They sent me a boy who rides like he's being chased by wolves." He chuckled, walking closer to inspect both horse and rider. "Sir Roland, at your service. Though after that entrance, I suspect I should be asking what you're running from, rather than what you're running to." </nc-section>
created_at"2026-07-01T07:39:12.86Z" 7/1/2026, 7:39:12 AM
model"anthropic/claude-sonnet-5-20260630"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3297
moderation_latency(null)
generation_time10801
tokens_prompt318
tokens_completion484
native_tokens_prompt435
native_tokens_completion702
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)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.00789
router(null)
provider_responses
0
endpoint_id"37b16f45-eeae-45f3-9b85-2137f7c6d61b"
id"msg_016W6b95L2E9PaUzYjcku4Wa"
is_byokfalse
latency2085
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-1782891552-424fXM67p0HDsgaebjro"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1782891552-3ku8ngcCCmFL4OjEY60l"
upstream_id"msg_016W6b95L2E9PaUzYjcku4Wa"
total_cost0.00789
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