Run: 2026-04-24-01KQ0P48XGW9BTFW8Y80W8CE3K

Run Details

Model:
GPT-5.5
Duration:
22.3s
Cost:
$0.029020
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"> Frederick had scarcely swung down from Thunder’s saddle when a voice rang out across the cobbled yard. “Easy there, lad. A horse that fine deserves a gentler hand than a travel-weary squire’s.” Frederick turned to see a broad-shouldered knight standing near the stable doors, one gloved hand resting on the pommel of his sword. His armor was plain but well-kept, the breastplate marked with a rearing stag, and his weathered face bore the calm certainty of a man who had seen battle and survived it. “I am Sir Roland,” the knight said. “Warden of these yards, and the one charged with seeing new squires do not get themselves trampled before supper.” Frederick straightened at once and bowed. “Frederick, sir. Newly arrived for training.” “So I was told.” Sir Roland’s eyes flicked over him, sharp as a hawk’s. “You rode hard. Ambition, fear, or foolishness?” Frederick hesitated. “Perhaps a little of all three, sir.” At that, Sir Roland laughed—a deep, honest sound that echoed beneath the stable roof. “Good. A truthful answer. Come then, Frederick. See to your horse first. A knight who neglects his mount has already lost half the battle.” </nc-section> <nc-section data-title="Version 2" data-color="green"> By the time Frederick reached the stables, the evening bells had begun to toll from the castle tower. Their bronze voices rolled over the courtyard as stable boys hurried to and fro with buckets, brushes, and bundles of hay. A tall man stepped from the shadow of the stable arch. He wore a dark green cloak clasped with silver, and though he carried no helmet, there was no mistaking him for anything but a knight. His bearing was straight, his gaze steady, and the sword at his hip looked as natural there as a branch upon a tree. “You must be Frederick,” he said. Frederick dismounted quickly, nearly catching his boot in the stirrup. “Yes, my lord.” “Sir Roland will do.” The knight reached out and stroked Thunder’s neck. The stallion, who had tossed his head at every stranger along the road, stood oddly still beneath the man’s touch. “And this proud creature?” “Thunder, sir.” “A bold name.” Sir Roland smiled faintly. “Let us hope his rider proves worthy of it.” Frederick felt his cheeks warm, but the knight’s tone held no cruelty. Only expectation. “Come,” Sir Roland said, nodding toward the stalls. “Before you meet the masters-at-arms, the steward, or the lord of this castle, you will learn the first duty of service: care for the one who carried you here.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> The stable yard smelled of straw, leather, and rain-soaked stone. Frederick led Thunder beneath the archway, his boots ringing softly against the cobbles. After the long road, the warmth spilling from the stables felt almost like welcome. Almost. “Hold there.” The command was not shouted, yet it stopped Frederick at once. From beside a stack of oat sacks rose a knight with iron-gray hair and a scar that cut through one eyebrow. He had been sharpening a dagger on a whetstone, and the rasp of steel faded as he looked Frederick over. “You are the new squire?” Frederick swallowed. “Yes, sir.” “Name?” “Frederick.” “Frederick what?” “Frederick of Alderbrook, sir.” The knight nodded once. “Sir Roland. I keep order here when the captains are busy and the boys are careless.” His gaze moved to Thunder, then back to Frederick. “That horse is lathered. Did no one teach you to walk him the last mile?” Frederick’s stomach tightened. “I—I was eager to arrive.” “Eagerness ruins blades, horses, and men.” Sir Roland slid the dagger into its sheath and took Thunder’s reins with surprising gentleness. “Remember that, and you may yet last the week.” Though the words were stern, Frederick noticed the knight had already begun loosening the stallion’s girth with practiced care. </nc-section>
created_at"2026-04-24T21:25:27.607Z" 4/24/2026, 9:25:27 PM
model"openai/gpt-5.5-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1112
moderation_latency(null)
generation_time22228
tokens_prompt318
tokens_completion1084
native_tokens_prompt302
native_tokens_completion917
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"
usage0.02902
router(null)
provider_responses
0
endpoint_id"58e5b336-423e-430b-a2ab-8bc353f0c51b"
id"resp_0ec680c5fd0b71490169ebdfc7bab0819699f4510a0fd516d9"
is_byokfalse
latency285
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-1777065927-Fo1VFaezEX2gdXEooafz"
session_id(null)
api_type"completions"
id"gen-1777065927-7HiT04XOktlyYKRyLnsb"
upstream_id"resp_0ec680c5fd0b71490169ebdfc7bab0819699f4510a0fd516d9"
total_cost0.02902
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