Run: 2026-05-01-01KQHSWYDS05BQMXJ75TD4VZS4

Run Details

Duration:
39.1s
Cost:
$0.008552
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 the banners of the kingdom flapped lazily in the evening breeze, Frederick guided Thunder through the gates and toward the dimly lit stables. The scent of hay and oiled leather hung thick in the air. Before he could finish loosening the saddle, a broad-shouldered figure in polished plate stepped from the shadows. The local knight, Sir Roland, greeted Frederick near the stables with a firm handshake and a booming laugh. "So you're the new squire everyone's whispering about. Good horsemanship, lad. We'll make a dragon-slayer of you yet." </nc-section> <nc-section data-title="Version 2" data-color="green"> Frederick slowed Thunder to a walk once inside the castle walls, the setting sun now painting the cobblestones crimson. He headed straight for the stables, eager to rub down his stallion after the long ride. A knight with a scarred face and a cloak trimmed in wolf fur emerged from one of the stalls. The local knight, Sir Roland, greeted Frederick near the stables, his voice low and measured like rolling thunder. "Frederick. You've kept your appointment. Good. The old master-at-arms broke three boys last summer. Try not to be the fourth." </nc-section> <nc-section data-title="Version 3" data-color="blue"> The last light of day vanished as Frederick rode beneath the portcullis, following the torchlit path to the stables. Strange symbols carved into the stable beams seemed to flicker as he passed. He had barely set foot on the straw-covered floor when a tall knight with eyes the color of storm clouds appeared. The local knight, Sir Roland, greeted Frederick near the stables, clasping his forearm in the old warrior fashion. "The wind told me a squire would come today," he murmured. "But it did not say whether you would wake the Last Dragon... or quiet it forever." </nc-section>
created_at"2026-05-01T12:58:27.133Z" 5/1/2026, 12:58:27 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency33705
moderation_latency(null)
generation_time39063
tokens_prompt318
tokens_completion1128
native_tokens_prompt411
native_tokens_completion3242
native_tokens_completion_images(null)
native_tokens_reasoning2843
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"
usage0.00855155
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"d4dc5e97-54c2-99aa-914e-5fab6cc96da8"
is_byokfalse
latency104
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-1777640307-tjGDHBGs4B0e2XPtGKW8"
session_id(null)
api_type"completions"
id"gen-1777640307-wQOLFmEooIFnbn8qOwvs"
upstream_id"d4dc5e97-54c2-99aa-914e-5fab6cc96da8"
total_cost0.00855155
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