Run: 2026-04-24-01KQ0N40E9T7A89RGCPKFRHPZR

Run Details

Duration:
16.7s
Cost:
$0.023440
Provider:
OpenAI

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" data-color="red"> Near the stables, where the air smelled of hay, leather, and the honest sweat of horses, Frederick slowed Thunder to a careful trot. Stablehands paused in their work to look him over, their whispers slipping between the stalls like mice in straw. A tall knight stood beneath the archway, his armor plain but polished, a blue cloak clasped at one shoulder. His beard was silver at the chin, and a long scar crossed one brow without diminishing the warmth in his eyes. “You must be Frederick,” the knight said. Frederick swung down from the saddle and bowed, perhaps too quickly. “Yes, sir.” “I am Sir Roland of Ashwick, sworn knight of this castle.” He glanced at Thunder with approval. “And this fine beast has carried you well.” Frederick felt his nerves twist tighter. “I’ve come to begin my training.” Sir Roland smiled, though there was a weight behind it. “Then you have arrived before the easy days are over. Come, lad. We shall see if your courage is as strong as your horse.” </nc-section> <nc-section data-title="Version 2" data-color="green"> Frederick guided Thunder through the outer yard toward the stables, where lanterns had just begun to glow in the deepening dusk. The castle seemed even larger from within its walls, all towering stone, ironbound doors, and watchful windows. As he dismounted, a voice called from beside the stable doors. “Easy there. Let the horse breathe before you fuss over your own boots.” Frederick turned and found a broad-shouldered knight leaning against a post, arms folded. His armor bore the dents of many battles, and his expression was stern enough to make Frederick stand straighter without meaning to. “Sir Roland?” Frederick asked. The knight gave a short nod. “Aye. And you are the new squire with more hope than sense.” Frederick swallowed. “I hope to earn both, sir.” For a moment, Sir Roland’s stern face did not change. Then the corner of his mouth lifted. “A fair answer,” he said. “Stow your gear. At dawn, we begin. The castle has need of quick hands—and perhaps, before long, brave hearts.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> By the time Frederick reached the stables, twilight had settled over the castle yard like a blue veil. Thunder snorted softly, tossing his dark mane as though he, too, sensed the importance of the place. A knight waited beside the stable entrance, one hand resting on the pommel of his sword. He was older than Frederick had expected, with weathered skin, calm grey eyes, and a presence that quieted the yard around him. “Welcome to Castle Eldermere,” the knight said. “I am Sir Roland.” Frederick bowed low. “Frederick of Vale Crossing, sir. I am honored to serve.” “Honor is spoken easily,” Sir Roland replied. “Service is proven in mud, cold, hunger, and fear.” Frederick lifted his chin. “Then I will prove it.” Sir Roland studied him for a long moment. From somewhere beyond the walls came the distant cry of a raven. “At least you do not lack spirit,” the knight said at last. “Come. We’ll stable your horse, then find you a cot. Tomorrow, your old life ends.” </nc-section>
created_at"2026-04-24T21:07:50.356Z" 4/24/2026, 9:07:50 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency886
moderation_latency(null)
generation_time16547
tokens_prompt318
tokens_completion865
native_tokens_prompt302
native_tokens_completion731
native_tokens_completion_images0
native_tokens_reasoning0
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"completed"
usage0.02344
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_06d682da71f5a4780169ebdba67ab08194825f1d67ca171c05"
is_byokfalse
latency496
model_permaslug"openai/gpt-5.5-20260423"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777064870-y8w5kyshrWrM5RwUYJQO"
session_id(null)
api_type"completions"
id"gen-1777064870-NW4JlfblIePst3eNxUov"
upstream_id"resp_06d682da71f5a4780169ebdba67ab08194825f1d67ca171c05"
total_cost0.02344
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)

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