NC Bench
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Run: 2026-02-20-01KHYABZ2VST5RS1ZFM9N9B7P4
Run Details
Model:
Grok 4.1 Fast
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
6.2s
Cost:
$0.000371
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 dismounted Thunder near the stables, a towering figure approached, clad in gleaming plate armor etched with the kingdom's roaring lion emblem. "Welcome, young squire Frederick," boomed Sir Roland, his voice like rolling thunder. His grizzled beard framed a face scarred from countless battles, and his eyes sparkled with the wisdom of a seasoned knight. He clasped my shoulder firmly. "You've arrived just in time. The king seeks brave hearts for the trials ahead." </nc-section> <nc-section data-title="Version 2: The Knight's Welcome" data-color="green"> Dismounting amidst the earthy scent of hay and horses, I turned to find Sir Roland striding from the stable shadows. His chainmail clinked softly, and a warm smile softened his weathered features. "Frederick, lad! We've been expecting you," he said, extending a gauntleted hand. The local knight's reputation for fairness preceded him, and in that moment, I felt the weight of destiny settle upon my shoulders like a well-fitted cloak. </nc-section> <nc-section data-title="Version 3: Encounter by the Stables" data-color="blue"> Thunder nickered softly as I led him into the stables, where Sir Roland awaited, polishing his sword by lantern light. The knight rose, his broad frame filling the doorway. "Hail, Squire Frederick," he greeted with a nod, his voice steady and commanding. Legends whispered of his dragon-slaying exploits, and up close, the fire in his gaze confirmed every tale. "Come, boy. Your training—and our world's fate—begins now." </nc-section>
created_at
"2026-02-20T20:02:58.795Z"
2/20/2026, 8:02:58 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
329
moderation_latency
(null)
generation_time
6008
tokens_prompt
318
tokens_completion
438
native_tokens_prompt
440
native_tokens_completion
612
native_tokens_completion_images
0
native_tokens_reasoning
256
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
0.0003715
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"fc5a222e-f6f1-8d77-e07a-1ee83fd3c6ac"
is_byok
false
latency
60
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617778-azpqJRLITFmtnoCAGI6T"
upstream_id
"fc5a222e-f6f1-8d77-e07a-1ee83fd3c6ac"
total_cost
0.0003715
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