NC Bench
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Run: 2026-02-20-01KHY7S22W8CYMHCHX5MF0XRED
Run Details
Model:
Grok 4
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
20.5s
Cost:
$0.013149
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" data-color="red"> As I dismounted Thunder near the stables, a towering figure in gleaming armor approached. It was Sir Roland, the local knight, his face weathered by years of battles. "Welcome, young Frederick," he boomed, clapping a heavy hand on my shoulder. "I've heard tales of your potential. Let's see if you can live up to them." His eyes sparkled with a mix of stern expectation and hidden warmth, as the stable hands hurried to tend to my horse. </nc-section> <nc-section data-title="Version 2" data-color="green"> Reining in Thunder at the edge of the stables, I caught sight of Sir Roland leaning against a wooden post, polishing his sword. The knight straightened up, his green cloak billowing slightly in the evening breeze. "Ah, Frederick, the new squire," he said with a nod, his voice steady and reassuring. "The road was kind to you, I hope? Come, stable your steed and join me for a quick lesson before supper." His demeanor was calm, like an ancient oak offering shade to a sapling. </nc-section> <nc-section data-title="Version 3" data-color="blue"> I guided Thunder into the stables, the scent of hay and horses filling the air, when Sir Roland emerged from the shadows. The knight's blue surcoat matched the deepening twilight sky. "Frederick, at last," he greeted with a formal bow, his tone laced with the gravity of tradition. "The castle has awaited your arrival. Dismount and walk with me; there are customs you must learn before the night falls." His gaze was piercing, evaluating me as if I were a blade yet to be forged. </nc-section>
created_at
"2026-02-20T19:17:42.118Z"
2/20/2026, 7:17:42 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
10949
moderation_latency
(null)
generation_time
20439
tokens_prompt
318
tokens_completion
408
native_tokens_prompt
969
native_tokens_completion
828
native_tokens_completion_images
0
native_tokens_reasoning
465
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
0.013149
router
(null)
provider_responses
0
endpoint_id
"d40bef9d-6936-4c57-9749-bf7399de4a77"
id
"3fce5e78-6a7a-4a1a-0eae-0fb100bab567"
is_byok
false
latency
110
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-1771615062-CtaX8tUOdiGa6iXlTIc0"
upstream_id
"3fce5e78-6a7a-4a1a-0eae-0fb100bab567"
total_cost
0.013149
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