Run: 2026-05-01-01KQHRD3QC4Z73HZFFPGK95X3A

Run Details

Duration:
19.9s
Cost:
$0.005517
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 I rode through the castle gates and guided Thunder toward the stables, a broad-shouldered knight in polished plate armor strode out to meet me. "Ho there, young Frederick!" he called, his voice warm and booming like distant thunder. Sir Roland clasped my forearm in a warrior's grip the moment I dismounted. "I've been expecting you. A squire with fire in his eyes is exactly what these halls need. Come, let's see to your horse and then we'll speak of the trials ahead. The Chronicles of the Last Dragon may yet have a new chapter with you in it." </nc-section> <nc-section data-title="Version 2" data-color="green"> The stables loomed ahead as I slowed Thunder to a trot, the banners now snapping overhead in the evening wind. Before I could fully dismount, a tall knight with a weathered face and moss-green cloak stepped from the shadows between the stalls. "Frederick," Sir Roland said, his tone measured and steady as ancient oak. "The local knight, at your service near these very stables. Your arrival stirs old prophecies. Tend to your mount quickly. Training begins at first light, and the shadow of the Last Dragon waits for no man." </nc-section> <nc-section data-title="Version 3" data-color="blue"> Twilight had settled fully by the time I reached the stables, Thunder's hooves echoing against the cobbled yard. A figure in deep blue robes beneath his armor emerged from the lantern-lit interior. "Well met, Frederick," declared Sir Roland, his voice carrying the weight of forgotten legends. He rested one hand on my stallion's neck while fixing me with eyes the color of storm-tossed seas. "I am the knight who will shape you in these walls. The last dragon's breath still warms certain hidden places in this kingdom. Your training may determine whether that fire brings salvation or ruin." </nc-section>
created_at"2026-05-01T12:32:19.708Z" 5/1/2026, 12:32:19 PM
model"x-ai/grok-4.20-20260309"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency15079
moderation_latency(null)
generation_time19521
tokens_prompt318
tokens_completion871
native_tokens_prompt411
native_tokens_completion2028
native_tokens_completion_images(null)
native_tokens_reasoning1626
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"
usage0.00551655
router(null)
provider_responses
0
endpoint_id"3ecee37f-b217-4093-87fb-aaf0afe307af"
id"0f494f29-5039-949d-849f-6123c4e391c4"
is_byokfalse
latency107
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-1777638739-WGODxom1exiT9OxM9QYR"
session_id(null)
api_type"completions"
id"gen-1777638739-ZubtkhMJgyNI7q84GrDe"
upstream_id"0f494f29-5039-949d-849f-6123c4e391c4"
total_cost0.00551655
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