Run: 2026-03-18-01KM07Z7KWZEXDQ5EJDR96ST45

Run Details

Duration:
5.8s
Cost:
$0.001238
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: The Iron Greeting" data-color="red"> The stables loomed ahead—warm breath and the sweet sting of straw hanging in the air like a promise. As Thunder was guided to a stop, the latched doors creaked open, and I stepped down, boots finding the packed earth with a thud that felt too loud for a place so full of hush and hoofbeat. A knight approached then, armor catching the last light of day in sharp, impatient angles. Sir Roland strode with the steadiness of a man who’d never had to hurry in his life, his tabard snapping lightly against his mail. “Frederick,” he said, as if tasting the name, “so they’ve finally sent you. Good. The castle’s always hungry for new hands—and new mistakes.” I bowed properly, though my knees wanted to argue. “Sir Roland, I’m ready to begin.” He looked me up and down, not unkindly, but as a smith studies a blade before deciding its temper. “Readiness is easy. Learning is not.” He gestured toward the yard and the row of tack hanging like prayers. “Come. We start with the things you’ll pretend you know until the day they save your life.” </nc-section> <nc-section data-title="Version 2: Straw, Steel, and Warnings" data-color="green"> Near the stables, the world smelled of leather and summer sweat. Horses stamped in their stalls, tossing bright ears at passing shadows, and the ground underfoot was slick with old water and fresh hay. I was winding my cloak tighter when a voice like a bell rang out behind me. “You’re the squire they’ve dragged in from the outer towns.” I turned. Sir Roland stood there with the unmistakable authority of a man who’d won arguments with steel alone. His gauntlets were still dusted with the gray grit of work—either he’d cleaned them himself, or he’d been near a smithy lately. Either way, it meant trouble. “I’m Frederick, sir,” I managed. My voice came out thinner than I liked. Sir Roland’s mouth quirked, half amusement and half instruction. “Good. Frederick is a name that listens.” He nodded toward a chest of training gear set just inside the stable doors—helmets, padded gloves, and a rack of practice swords that looked almost too eager to be used. “Before anyone teaches you to fight, you’ll learn to stand steady. If you can’t hold a horse’s bridle without trembling, you won’t hold a line in battle.” Then he leaned closer, lowering his voice as if the rafters might report me. “And don’t ask about dragons yet.” </nc-section> <nc-section data-title="Version 3: The Knight’s Kindness, Measured" data-color="blue"> The stables were a small kingdom of their own: lantern light pooled like honey along the beams, and every sound—hoof scrape, halter click, the restless sigh of a horse—felt like part of a careful ritual. I led Thunder in by feel more than sight, trying not to show how my hands shook with excitement. “Easy,” Sir Roland said from just beyond the stall row. I looked up. He was there, as if he’d stepped out of the shadows between two beams. His armor was polished, but not pristine—there were scuffs where life had touched him, proof he’d moved through the world instead of posing in it. The sight of him should have intimidated me more, yet something in his gaze steadied the faster part of my heart. “I’m sorry, sir,” I said immediately, thinking I’d made a mistake with the tack. “No.” Sir Roland stepped closer, and his presence filled the narrow aisle the way warmth fills a drafty room. “You did fine. You’re just eager.” He offered a gloved hand to take the bridle from mine. His fingers were firm, practiced, and somehow gentle. “Eagerness is useful,” he said. “But a squire must learn when to quiet it. Tomorrow you’ll swing a blade. Today you learn the weight of your responsibilities.” I swallowed. “What responsibilities, Sir Roland?” His eyes flicked toward the castle beyond the stables—toward towers darkening against the sky. “The ones that come after the day everyone wants to talk about.” </nc-section>
created_at"2026-03-18T10:30:56.906Z" 3/18/2026, 10:30:56 AM
model"openai/gpt-5.4-nano-20260317"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1601
moderation_latency(null)
generation_time5569
tokens_prompt318
tokens_completion1076
native_tokens_prompt302
native_tokens_completion942
native_tokens_completion_images0
native_tokens_reasoning21
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
usage0.0012379
router(null)
provider_responses
0
endpoint_id"0c835f2e-c18d-4e8c-b245-e1e3bd08b97f"
id"resp_00aea8ce5ece796a0169ba7ee0f4a081958d1d14d627b67a4d"
is_byokfalse
latency188
model_permaslug"openai/gpt-5.4-nano-20260317"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.0; linux; x64))"
http_referer(null)
api_type"completions"
id"gen-1773829856-Yo1h9D8JS1DzbzRbPsCX"
upstream_id"resp_00aea8ce5ece796a0169ba7ee0f4a081958d1d14d627b67a4d"
total_cost0.0012379
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"

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