Run: 2026-04-24-01KQ0N5WXJK2A8G75CFJ0GTZ5B

Run Details

Duration:
26.1s
Cost:
$0.033700
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"> Thunder slowed to a proud trot as we neared the stables, his hooves striking sparks from the cobbled yard. The smell of hay, leather, and warm horseflesh greeted me before any man did, and for a moment I wondered if I had arrived unseen. Then a voice rang out from beside the stable doors. “You sit a saddle well enough, lad. Let us hope you can hold a sword as firmly.” A tall knight stepped from the shadow of the overhanging roof. His mail was plain but well kept, and a dark green cloak hung from one shoulder, fastened with a silver pin shaped like a rearing stag. His beard was touched with grey, though his eyes were bright and sharp as a hawk’s. I swung down from Thunder and bowed as deeply as I could without stumbling. “Frederick, sir. Sent from Ashbrook to serve and train.” “I know who you are,” the knight said, though not unkindly. “I am Sir Roland, sworn shield of this castle and, for your sins, the man who will make a squire of you.” He looked me over from boots to brow, then glanced at Thunder. “Fine horse. See that he is rubbed down before you think of your own supper. A knight who neglects his mount has no place in battle.” “Yes, Sir Roland.” He gave the smallest nod, and though it was no praise, it felt like a banner unfurling in my chest. “Good. Welcome to the castle, Frederick. Dawn comes early here, and so does discipline.” </nc-section> <nc-section data-title="Version 2" data-color="green"> By the time I reached the stables, the last light of sunset had turned the castle windows to fire. Stable boys paused in their work to stare as Thunder and I entered the yard, and I felt suddenly aware of every patch on my cloak, every scuff on my boots. Near the water trough stood a knight with one hand resting on the pommel of his sword. He did not wear polished tournament armor like the heroes in village songs. His breastplate bore scratches, and the leather at his wrists was dark from years of rain and sweat. Yet there was something about him that made the whole yard seem quieter. “You must be Frederick,” he said. I dismounted quickly. “Yes, sir.” “Sir Roland,” he replied. “You may call me that, or ‘sir.’ You may not call me late for morning drills.” One of the stable boys snorted, then hurried away when Roland glanced in his direction. I bowed, my face warm. “I am honored to be here.” “Honor is easy to speak of on the road,” Sir Roland said. “Harder to keep when your arms ache, your stomach is empty, and your pride has been knocked into the mud.” He stepped closer and took Thunder’s reins, studying the stallion with approval. “But you came before full dark, and your horse is not blown. That tells me you have some sense. We shall see tomorrow whether you have courage to match it.” The castle bells began to toll above us. Sir Roland handed the reins back to me. “Stables first, Frederick. A squire’s training begins with service.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The castle yard opened before me in a clatter of wheels, voices, and ringing iron. Servants hurried with baskets of rushes, men-at-arms crossed the yard in pairs, and from the smithy came the steady song of hammer upon anvil. I guided Thunder toward the stables, trying not to look as overwhelmed as I felt. A bay mare lifted her head from a nearby stall as I approached. Beside her stood a broad-shouldered knight brushing dust from her flank with slow, careful strokes. He looked up before I could speak. “So this is the new squire.” His voice was deep, carrying easily over the noise of the yard. I slid from Thunder’s back and bowed. “Frederick of Ashbrook, sir.” “Sir Roland of Valeguard,” he said. “Welcome.” The word was simple, yet it steadied me more than I expected. He set the brush aside and walked around Thunder, inspecting him with the grave attention of a battlefield commander. “Strong legs. Clear eyes. You have cared for him well.” “My father taught me, sir.” “Then your father taught you something worth knowing.” For the first time since I had seen the castle towers rise against the sky, my nervousness eased. Sir Roland’s gaze returned to me, and there was no softness in it now, only measure. “You will find that this place asks much of a boy. It asks even more of a man. Which you become is up to you.” I swallowed and nodded. “I will not fail, sir.” “No,” Sir Roland said, turning toward the stable doors. “You will fail often. The important thing is that you rise each time. Come—let us see Thunder settled, and then we shall see where you belong.” </nc-section>
created_at"2026-04-24T21:08:52.285Z" 4/24/2026, 9:08:52 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency704
moderation_latency(null)
generation_time26010
tokens_prompt318
tokens_completion1264
native_tokens_prompt302
native_tokens_completion1073
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"
usage0.0337
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0bd6ad4203b389ed0169ebdbe4683c8196a87628e882d23da5"
is_byokfalse
latency322
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-1777064932-XZY7fqhnv6ITWY1s8OlE"
session_id(null)
api_type"completions"
id"gen-1777064932-b8EjIBuaQvWp1nhIHIOh"
upstream_id"resp_0bd6ad4203b389ed0169ebdbe4683c8196a87628e882d23da5"
total_cost0.0337
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