Run: 2026-09-03-01M1K59FTVKG9AY6H8W2YYJZH5

Run Details

Duration:
27.0s
Cost:
$0.006227
Provider:
Meta

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: Steel and Scorn" data-color="red"> I had barely swung down from Thunder's saddle when a shadow fell across the stable yard. "So. Another whelp come to play at war," a gravel voice growled. Sir Roland stood with arms crossed over his dented breastplate, his beard flecked with grey and stable straw. He looked me up and down, then at my lathered horse, and snorted. "You rode him hard on soft ground, boy. Stables are that way. Rub him down yourself — squires in my yard tend their own beasts before they tend their bellies. Frederick, is it? We'll see how long you last." </nc-section> <nc-section data-title="Version 2: A Warm Welcome" data-color="green"> Thunder snorted and stamped as I led him into the cool shade of the stables, the smell of hay and leather washing over me. A broad laugh rang out. "Well met, traveler! You must be Frederick." Sir Roland emerged from a stall, sleeves rolled, a curry brush in one gauntleted hand. His eyes were kind beneath his scarred brow. He clasped my forearm in the warrior's grip. "Welcome to Thornwall, lad. Your master wrote that you have a steady seat and a steady heart. Come, let's get this fine Thunder settled — then we'll get you bread and stew. Training starts at dawn, but tonight, you rest as a guest." </nc-section> <nc-section data-title="Version 3: Omen at Dusk" data-color="blue"> Dusk had turned the stable yard blue when I dismounted, my legs stiff from the long ride. The lanterns were just being lit. From the dark of the archway, Sir Roland appeared quietly, leading no horse, carrying no blade. He studied me for a long moment. "Frederick," he said at last, as if tasting the name. "I knew your father." He took Thunder's reins gently and ran a hand down the stallion's neck to calm him. "The dragons are gone, they say. But the old blood still stirs. Come with me, boy. There is much you must learn here — and not all of it about swords." </nc-section>
created_at"2026-09-03T08:13:45.185Z" 9/3/2026, 8:13:45 AM
model"meta/muse-spark-1.3-20260902"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5280
moderation_latency(null)
generation_time26968
tokens_prompt303
tokens_completion536
native_tokens_prompt303
native_tokens_completion1376
native_tokens_completion_images0
native_tokens_reasoning850
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"
service_tier"auto"
usage0.00622675
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423225-j8RXdIu25qsD4k1L9wHS"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423225-wO1AWHxOS29332hn1NRR"
upstream_id"resp_6a992c3a63e351cb5e304ef5"
provider_responses
0
endpoint_id"cf4f1b4e-1719-4b65-9111-7dd7635e5a2f"
id"resp_6a992c3a63e351cb5e304ef5"
is_byokfalse
latency1861
model_permaslug"meta/muse-spark-1.3-20260902"
provider_name"Meta"
status200
total_cost0.00622675
cache_discount(null)
upstream_inference_cost0
provider_name"Meta"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

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