Run: 2026-07-09-01KX40G1S5M51XGBX7Y2250AA9

Run Details

Duration:
4.2s
Cost:
$0.003956
Provider:
OpenAI

Evaluation summary

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

AI
<nc-section data-title="Version 1" data-color="red"> Near the stables, a broad-shouldered knight in a weathered crimson cloak stepped into Frederick’s path. His silver-streaked beard framed a stern but kindly face. “Frederick?” he asked. The young squire dismounted at once. “Yes, sir.” “I am Sir Roland, keeper of the western watch.” The knight’s gaze traveled from Thunder’s lathered flanks to the castle towers beyond. “You’ve arrived on an interesting night. The bells have rung twice since sunset, though no one has touched them.” A cold unease settled in Frederick’s stomach. Sir Roland lowered his voice. “Come inside. There are things you must learn before dawn—and one of them concerns the last dragon.” </nc-section> <nc-section data-title="Version 2" data-color="green"> As Frederick led Thunder toward the stables, a knight emerged from the shadows between the stalls. His green-and-gold surcoat was faded from years of travel, but the sword at his side gleamed brightly. “Welcome to the castle,” the knight said. “I’m Sir Roland.” Frederick bowed awkwardly. “It’s an honor, sir.” “Save your honors for after you’ve survived your first week.” Sir Roland smiled, though his eyes remained fixed on the distant hills. “The horses have been restless all day. Even the ravens deserted the rookery.” A low rumble rolled across the twilight—not thunder, Frederick thought, but something deeper. Sir Roland rested a hand on his shoulder. “Your training begins tonight. Saddle your horse again. We may have visitors before the moon reaches its height.” </nc-section> <nc-section data-title="Version 3" data-color="blue"> At the stable door, Frederick found a tall knight waiting beneath the fluttering blue banner of the royal house. His armor was scarred, his cloak damp with mist, and a pale streak crossed one cheek like a slash of lightning. “You must be the new squire,” he said. “Frederick, sir.” “Sir Roland.” He offered a gloved hand, and Frederick clasped it. The knight’s grip was strong enough to make his fingers ache. “I was told to expect a boy eager for glory.” Frederick glanced at the towering castle. “I’m eager to serve.” “Good. Glory has a habit of getting young men killed.” Roland turned toward the stable, where Thunder suddenly reared and gave a frightened cry. “Tell me, Frederick—did you see anything on the road?” Before Frederick could answer, a blue flame flickered high above the battlements, burning without smoke. </nc-section>
created_at"2026-07-09T17:58:33.531Z" 7/9/2026, 5:58:33 PM
model"openai/gpt-5.6-luna-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1300
moderation_latency(null)
generation_time3821
tokens_prompt318
tokens_completion689
native_tokens_prompt302
native_tokens_completion609
native_tokens_completion_images0
native_tokens_reasoning42
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.003956
router(null)
provider_responses
0
endpoint_id"eebea444-34a5-4642-a766-cb319471d33a"
id"resp_0bcd948866064228016a4fe1499e248196bbfd50540ed08764"
is_byokfalse
latency258
model_permaslug"openai/gpt-5.6-luna-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783619913-maHiohaJRCNtoJt8mf1c"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783619913-cyAQRSJbS2Ts3E5XSkWL"
upstream_id"resp_0bcd948866064228016a4fe1499e248196bbfd50540ed08764"
total_cost0.003956
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

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