NC Bench
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Run: 2026-02-20-01KHYANYBEH5MH25WE19RSC4EC
Run Details
Model:
Grok 4.1 Fast
Test:
Tool usage within Novelcrafter
Scenario:
Create alternate prose sections
Duration:
14.1s
Cost:
$0.000657
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, their iron bars creaked open under the watchful eyes of armored guards. A stablehand rushed forward to take the reins, leading us toward the shadowed stables nestled against the outer wall. There, silhouetted against the dying light, stood Sir Roland, the local knight renowned for his valor in the border skirmishes. His armor gleamed faintly, etched with the dragon emblem of our realm. "Young squire Frederick," he boomed, his voice like rolling thunder, clapping a gauntleted hand on my shoulder with surprising gentleness. "You've made good time. The king awaits those with fire in their hearts. Come, stable your beast and prove your mettle." </nc-section> <nc-section data-title="Version 2: A Stern Greeting" data-color="green"> Thunder's hooves clattered over the drawbridge as the gates swung wide, admitting me into the courtyard bathed in twilight's amber hues. I guided him toward the stables, where the scent of hay and horseflesh mingled with the evening air. Emerging from the gloom was Sir Roland, his face weathered like ancient oak, eyes sharp as a falcon's. Clad in mail that had seen countless battles, he blocked my path with crossed arms. "Squire Frederick, is it?" he growled, appraising me from boots to brow. "Many lads dream of glory, but few endure the forge. Dismount and face your first trial—tend to your mount without aid, then report to the armory at dawn." </nc-section> <nc-section data-title="Version 3: Whispers of Legend" data-color="blue"> The gates parted like reluctant jaws, and I urged Thunder into the vast courtyard, where torches flickered to life against the encroaching dusk. As we approached the stables, a figure stepped from the hay-strewn entrance—Sir Roland, his cloak embroidered with faded scales that whispered of dragons long vanished. His gaze pierced me, knowing and kindled with hidden fires. "Frederick, son of the eastern marches," he said softly, extending a hand to steady my dismount. "The stars align for your arrival. Whispers speak of the Last Dragon's shadow stirring anew. Stable your steed, lad, and let us speak of destinies forged in flame." </nc-section>
created_at
"2026-02-20T20:08:25.723Z"
2/20/2026, 8:08:25 PM
model
"x-ai/grok-4.1-fast"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
700
moderation_latency
(null)
generation_time
14000
tokens_prompt
318
tokens_completion
605
native_tokens_prompt
440
native_tokens_completion
1269
native_tokens_completion_images
0
native_tokens_reasoning
776
native_tokens_cached
439
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
0.00065665
router
(null)
provider_responses
0
endpoint_id
"9821aa0e-dce3-4c27-9716-161359123d0b"
id
"6b3f1995-53bd-1836-4853-0e4f7d18cd2f"
is_byok
false
latency
482
model_permaslug
"x-ai/grok-4.1-fast"
provider_name
"xAI"
status
200
api_type
"completions"
id
"gen-1771618105-AQw9m7yBo8lDVKBzUiSd"
upstream_id
"6b3f1995-53bd-1836-4853-0e4f7d18cd2f"
total_cost
0.00065665
cache_discount
0.00006585
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