NC Bench
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Run: 2026-02-20-01KHYA3QPNEKHYGDPEQXQ5T8ZN
Run Details
Model:
Grok 4.1 Fast
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
6.1s
Cost:
$0.000407
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: The Knight's Welcome" data-color="red"> As I reined in Thunder before the grand castle gates, a figure strode forth from the shadow of the stables—a towering knight clad in gleaming plate armor, his cloak emblazoned with the roaring lion of Eldoria. "Hail, young squire Frederick!" boomed Sir Roland, his voice like rolling thunder. He clasped my forearm in a grip of iron, eyes twinkling with mirth beneath his bushy brows. "You've made good time. Come, stable your beast and let us see if your mettle matches your speed." </nc-section> <nc-section data-title="Version 2: Shadows of the Stables" data-color="green"> Dismounting Thunder at the castle gates, I led him toward the stables as the sun dipped below the horizon, painting the sky in fiery hues. There, silhouetted against the lantern-lit hay bales, stood Sir Roland, the local knight renowned for slaying the Wyrm of Blackmoor. "Frederick, lad," he called, his gravelly voice warm yet commanding, stepping forward to take Thunder's reins. "The road has tested you well. Now, the castle shall forge you anew." </nc-section> <nc-section data-title="Version 3: A Gruff Greeting" data-color="blue"> The gates creaked open, and I guided Thunder into the courtyard toward the stables, the scent of hay and horseflesh filling the air. A burly knight emerged from the stable doors—Sir Roland himself, his beard streaked with gray, armor scarred from countless battles. "Squire Frederick," he grunted approvingly, clapping a heavy hand on my shoulder as he inspected my travel-worn cloak. "Ye look sturdy enough. Unsaddle yer nag, and we'll talk of dragons and destiny over ale." </nc-section>
created_at
"2026-02-20T19:58:29.089Z"
2/20/2026, 7:58:29 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
342
moderation_latency
(null)
generation_time
5886
tokens_prompt
318
tokens_completion
457
native_tokens_prompt
440
native_tokens_completion
682
native_tokens_completion_images
0
native_tokens_reasoning
296
native_tokens_cached
150
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
0.0004065
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"409333fd-aa98-8d72-0899-d1e3ea1ea144"
is_byok
false
latency
73
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617509-XIXlGXACnOeuQ6xA5Rs3"
upstream_id
"409333fd-aa98-8d72-0899-d1e3ea1ea144"
total_cost
0.0004065
cache_discount
0.0000225
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