Run: 2026-09-03-01M1K5BWH9K8W6A6TE9Z7FC9YH

Run Details

Duration:
14.3s
Cost:
$0.005334
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: Sir Roland's Greeting" data-color="red"> Frederick had barely dismounted from Thunder when a broad shadow fell across the stable yard. Sir Roland, the castle's master-at-arms, stood with his arms crossed, his grey beard neatly trimmed and his surcoat bearing the faded crest of a rearing lion. "You must be Frederick," he said, his voice stern but not unkind. "I expected you an hour ago. A squire who cannot keep time will never keep his sword. Come, stable your horse properly — I'll show you how we do things in this castle." </nc-section> <nc-section data-title="Version 2: Sir Roland's Greeting" data-color="green"> As Frederick led Thunder toward the stables, the scent of hay and leather filling his nose, a hearty laugh rang out behind him. "Well, well! You must be the new squire we've been waiting for!" Sir Roland was a towering knight with a rosy face and armor that gleamed despite its many dents. He clapped Frederick warmly on the shoulder. "Welcome, lad! I'm Sir Roland. Leave Thunder to the stable boys — you look half-starved from the road. Let's get you a meal and I'll tell you all about your training." </nc-section> <nc-section data-title="Version 3: Sir Roland's Greeting" data-color="blue"> Frederick was fumbling with Thunder's saddle near the stables when he heard the slow clink of chainmail approaching. Sir Roland emerged from the gloom of the stable doorway, his face weathered and his eyes sharp. He looked Frederick up and down in silence for a long moment before speaking. "Frederick, is it? I'm Sir Roland, keeper of this castle's knights." He took Thunder's reins gently from the boy's hands. "You've got a fine horse, but tired eyes. The road was long, I see. Walk with me." </nc-section>
created_at"2026-09-03T08:15:03.934Z" 9/3/2026, 8:15:03 AM
model"meta/muse-spark-1.2-20260805"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3295
moderation_latency(null)
generation_time13700
tokens_prompt303
tokens_completion496
native_tokens_prompt303
native_tokens_completion1166
native_tokens_completion_images0
native_tokens_reasoning694
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"
usage0.00533425
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.19.0; linux; x64))"
http_referer(null)
request_id"req-1788423304-qu1zNmoNE3YAEW9ILtoE"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1788423304-gi8YiqCHe0eAPjCQKyyF"
upstream_id"resp_6a992c881cfc2280b3a94f7c"
provider_responses
0
endpoint_id"ffc8e76e-808a-44d2-bd21-c6ac16e721cb"
id"resp_6a992c881cfc2280b3a94f7c"
is_byokfalse
latency280
model_permaslug"meta/muse-spark-1.2-20260805"
provider_name"Meta"
status200
total_cost0.00533425
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