Run: 2026-05-01-01KQHSXBNM4EZBSR5P4NK0MFH4

Run Details

Duration:
8.3s
Cost:
$0.001879
Provider:
xAI

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"> As Frederick guided Thunder toward the ancient stables, the familiar scent of hay and leather filled the evening air. The great wooden doors creaked open, and from within emerged a towering figure clad in polished plate armor etched with dragon motifs. Sir Roland, the realm's most renowned knight, stepped forward with a firm stride, his silver-streaked beard catching the fading sunlight. "Hail, young Frederick," he called out, his voice deep and resonant like distant thunder. "I see you've made good time from the villages. Your father spoke highly of your spirit—let us see if it matches your mount's fire." The knight's hand rested on the hilt of his legendary sword, Dragon's Bane, as he assessed the squire with eyes that had witnessed countless battles against the shadow beasts plaguing the kingdom. </nc-section> <nc-section data-title="Version 2" data-color="green"> The stables loomed ahead, their thatched roofs glowing softly in the twilight. Frederick dismounted with practiced ease, leading Thunder by the reins when a broad-shouldered man in a weathered tabard bearing the royal crest appeared from the shadows of the stalls. It was Sir Roland, the local knight whose tales of valor had reached even the farthest hamlets. "Well met, lad," Sir Roland greeted warmly, clapping a callused hand on Frederick's shoulder. His smile was genuine, though scars from old dragonfire marked his neck. "The castle has awaited your arrival. I've prepared a fine stall for your stallion and a sharper blade for your training. Tell me, do you fear the legends of the Last Dragon, or do you burn to face such myths?" The knight's presence carried the weight of experience, hinting at trials that would forge the young squire into something greater. </nc-section> <nc-section data-title="Version 3" data-color="blue"> Near the shadowed archway of the royal stables, where lanterns flickered to life against the encroaching night, Sir Roland awaited like a sentinel from the old epics. The knight's armor gleamed with an otherworldly sheen, and his cloak bore the emblem of a coiled serpent—symbol of the order that had guarded the realm since the Great Sundering. "Frederick of the Western Marches," he intoned as the squire approached, his tone both welcoming and commanding. "Your journey ends here, but your true path begins. I am Sir Roland, sworn blade of the king and slayer of the shadow wyrms. Come, let us see to your horse, then speak of the prophecies that whisper of the Last Dragon's return." His gaze pierced through the gathering dusk, as if measuring the boy's soul for the burdens ahead in the Chronicles that shaped their world. </nc-section>
created_at"2026-05-01T12:58:40.698Z" 5/1/2026, 12:58:40 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency752
moderation_latency(null)
generation_time8136
tokens_prompt318
tokens_completion688
native_tokens_prompt409
native_tokens_completion574
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached64
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"
usage0.00187905
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"fb114ffa-8b1f-95a0-aaeb-82c40eb93a94"
is_byokfalse
latency73
model_permaslug"x-ai/grok-4.20-20260309"
provider_name"xAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777640320-fmVqk5PBU5MVX1r9AzzC"
session_id(null)
api_type"completions"
id"gen-1777640320-OiOAOFa8ha0FjP1mm87C"
upstream_id"fb114ffa-8b1f-95a0-aaeb-82c40eb93a94"
total_cost0.00187905
cache_discount0.0000672
upstream_inference_cost0
provider_name"xAI"
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