NC Bench
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Run: 2026-02-20-01KHY9GQJ42416PEQBFY5EQ7KN
Run Details
Model:
Grok 4.1 Fast
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
7.7s
Cost:
$0.000448
Provider:
xAI
Evaluation summary
Score
Evaluator
Details Link
Pass
Match blue prose section
(details)
Pass
Match green prose section
(details)
Pass
Match red prose section
(details)
no eval
Overall
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
Messages
Meta
AI
<nc-section data-title="Version 1: Greeting at the Stables" data-color="red"> As I reined in Thunder near the stables, a tall knight with a weathered face and a gleaming breastplate strode forward. "Welcome, young squire Frederick," boomed Sir Roland, his voice rich and commanding yet laced with genuine warmth. He clasped my forearm firmly, his grip like iron forged in battle. "The castle has awaited your arrival. Come, let us stable your steed and speak of the trials ahead." </nc-section> <nc-section data-title="Version 2: Greeting at the Stables" data-color="green"> Dismounting amidst the earthy scent of hay and horses, I found myself face-to-face with Sir Roland, the local knight renowned for his valor in the border skirmishes. He approached with measured steps, his cloak embroidered with the king's stag emblem billowing slightly. "Squire Frederick," he said formally, offering a gauntleted hand, "you ride with purpose. The stables await your mount, and I, your first lesson in duty." </nc-section> <nc-section data-title="Version 3: Greeting at the Stables" data-color="blue"> Thunder's hooves clattered to a halt by the stables as shadows lengthened across the courtyard. From the dim archway emerged Sir Roland, his eyes sharp beneath a furrowed brow, armor scarred from forgotten wars. "Frederick," he greeted in a low, gravelly tone that sent a shiver down my spine, extending a hand that bore the weight of ancient oaths. "The winds whisper of your coming. Tend to your horse, lad—greater shadows stir beyond these walls." </nc-section>
created_at
"2026-02-20T19:48:06.351Z"
2/20/2026, 7:48:06 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
566
moderation_latency
(null)
generation_time
7574
tokens_prompt
318
tokens_completion
426
native_tokens_prompt
440
native_tokens_completion
852
native_tokens_completion_images
0
native_tokens_reasoning
506
native_tokens_cached
439
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"completed"
usage
0.00044815
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"f49e2cf6-345c-8cb1-0185-7364cac5e05f"
is_byok
false
latency
155
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771616886-9QF7JO95lD36hxtv4l7f"
upstream_id
"f49e2cf6-345c-8cb1-0185-7364cac5e05f"
total_cost
0.00044815
cache_discount
0.00006585
upstream_inference_cost
0
provider_name
"xAI"
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