NC Bench
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Run: 2026-02-20-01KHYA572CSJNNE5H841Y9ST56
Run Details
Model:
Grok 4
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
25.6s
Cost:
$0.012744
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="Arrival at the Stables - Version 1" data-color="red"> As I dismounted Thunder near the stables, the earthy scent of hay and horse filled the air. A towering figure approached, clad in gleaming armor etched with the kingdom's crest. "Welcome, young Frederick," boomed Sir Roland, his voice deep and commanding, like thunder echoing off the mountains. He extended a gauntleted hand, his eyes sharp and assessing under bushy brows. "I've heard much of your potential. Let us see if the rumors hold true." </nc-section> <nc-section data-title="Arrival at the Stables - Version 2" data-color="green"> Reining in Thunder at the stable entrance, I felt the cool evening breeze carry the murmur of distant voices. From the shadows emerged Sir Roland, the local knight, his armor polished to a subtle shine that caught the fading light. "Ah, Frederick, you've made it just in time," he said with a warm smile, his tone friendly yet laced with the wisdom of countless battles. He clasped my shoulder firmly, guiding me toward the stalls. "Come, stable your steed, and we'll discuss your training over a hearty meal." </nc-section> <nc-section data-title="Arrival at the Stables - Version 3" data-color="blue"> I guided Thunder into the stable yard, the cobblestones cool underfoot as the sun dipped below the horizon. There, leaning against a wooden post, stood Sir Roland, his silhouette imposing against the twilight sky. "Frederick, the squire from the villages," he greeted with a nod, his voice steady and measured, like the flow of a ancient river. He stepped forward, offering a hand in greeting, his gaze piercing yet kind. "The castle awaits your service. Tell me, what drives a young man like you to these walls?" </nc-section>
created_at
"2026-02-20T19:59:17.592Z"
2/20/2026, 7:59:17 PM
model
"x-ai/grok-4-07-09"
4/7/2009, 12:00:00 AM
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
13209
moderation_latency
(null)
generation_time
25530
tokens_prompt
318
tokens_completion
446
native_tokens_prompt
969
native_tokens_completion
801
native_tokens_completion_images
0
native_tokens_reasoning
415
native_tokens_cached
968
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
0.012744
router
(null)
provider_responses
0
endpoint_id
"d40bef9d-6936-4c57-9749-bf7399de4a77"
id
"0ccbc297-8fbd-2857-f7d5-8eefec795d72"
is_byok
false
latency
451
model_permaslug
"x-ai/grok-4-07-09"
4/7/2009, 12:00:00 AM
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771617557-eafDGw270JokpPQdzmnG"
upstream_id
"0ccbc297-8fbd-2857-f7d5-8eefec795d72"
total_cost
0.012744
cache_discount
0.002178
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