NC Bench
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Run: 2026-02-20-01KHXPBVRY5JTJ3ERAWPZYVW70
Run Details
Model:
Mistral Medium 3.1
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
20.4s
Cost:
$0.001800
Provider:
Mistral
Evaluation summary
Score
Evaluator
Details Link
Fail
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="A Harsh Welcome" data-color="red"> Thunder’s hooves clattered to a halt as a towering figure emerged from the shadows of the stables, his armor still streaked with the grime of battle. Sir Roland’s reputation as the kingdom’s most ruthless knight preceded him—his piercing gaze alone could make seasoned warriors flinch. He crossed his arms, the gauntlets creaking ominously, and fixed me with a look that felt like a blade pressed to my throat. *"You’re late, boy,"* he growled, voice rough as gravel. *"The King doesn’t tolerate tardiness, and neither do I. If you’re to survive here, you’ll learn that first."* He stepped closer, the scent of iron and sweat thick in the air. *"Dismount. Now."* My fingers trembled as I obeyed, but I forced my chin up. I wouldn’t cower—not on my first day. Sir Roland’s lip curled, as if he could smell fear. *"Good. You’ve got spine. We’ll see if it lasts."* He turned on his heel, barking over his shoulder, *"Stable your horse, then meet me in the training yard. You’ve got five minutes. Don’t disappoint me again."* </nc-section> --- <nc-section data-title="A Measure of Respect" data-color="green"> The stables were bathed in golden twilight when a broad-shouldered man stepped into view, his polished armor gleaming dully in the fading light. Sir Roland was older than I’d expected, his dark beard streaked with silver, but his stance was that of a man half his age—alert, commanding, yet not unkind. He offered a nod, not quite a smile, but something warmer than I’d dared hope for. *"Frederick, I presume?"* His voice was deep, measured. *"Your father wrote of your arrival. Said you’ve a keen mind and a steady hand."* He reached out, taking Thunder’s reins with practiced ease. *"A fine beast you’ve got here. Treated him well, I see."* I swallowed, surprised by the praise. *"Th-thank you, sir. My father taught me—"* *"Aye, Aldric was a good man."* Sir Roland’s expression softened for a heartbeat before he clapped me on the shoulder. *"Come, let’s get your horse settled. Then I’ll show you to the barracks. You’ll want to rest before tomorrow—training under me isn’t for the faint of heart."* There was a glint in his eye, not of cruelty, but of challenge. *"But I’ve a feeling you’ll do just fine."* </nc-section> --- <nc-section data-title="A Test of Mettle" data-color="blue"> I had barely swung down from Thunder’s back when a blur of motion caught my eye—a lance of steel flashed, pressing against my throat before I could gasp. Sir Roland stood before me, his sword unsheathed, his face unreadable. The stables around us seemed to hold their breath. *"First rule of knighthood, squire,"* he said, voice calm as still water. *"Always be aware of your surroundings. A distracted man is a dead man."* The blade didn’t waver. *"Now. What do you do?"* My pulse roared in my ears, but I forced myself to think. Slowly, I raised my hands, showing them empty. *"I yield, sir. And I’ll remember the lesson."* The sword lowered, and Sir Roland sheathed it with a sharp *click*. His lips twitched—almost a smile. *"Good answer. Most boys your age would’ve reached for their dagger or begged for mercy."* He turned, gesturing for me to follow. *"Walk with me. You’ve got much to learn, Frederick. But if you’re half as clever as you are quick, you might just survive this place."* The challenge in his tone was clear: *Prove yourself.*
created_at
"2026-02-20T14:13:23.882Z"
2/20/2026, 2:13:23 PM
model
"mistralai/mistral-medium-3.1"
3/1/2001, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
258
moderation_latency
(null)
generation_time
20360
tokens_prompt
318
tokens_completion
905
native_tokens_prompt
291
native_tokens_completion
842
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
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
"stop"
usage
0.0018004
router
(null)
provider_responses
0
endpoint_id
"13c5002b-8c5b-490c-8a5f-52ec0242804f"
id
"fb449a0420ce4812a951bb4bf5e98990"
is_byok
false
latency
258
model_permaslug
"mistralai/mistral-medium-3.1"
3/1/2001, 12:00:00 AM
provider_name
"Mistral"
status
200
api_type
"completions"
id
"gen-1771596803-J2OHcNXbTclwwz1bhspg"
upstream_id
"fb449a0420ce4812a951bb4bf5e98990"
total_cost
0.0018004
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Mistral"
Evaluation details
Result
Evaluator
Details
Meta Data
Fail
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