NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write 200 words with 50% dialogue
Run ID
2026-02-08-01KGZ08FXMQQ1FRADQ7F2V7VQA
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% words of dialogue between two thieves named Molly and Bill who are planning to break into a children's party to steal all the presents. Only include the prose of the scene without any markdown or commentary.
Model response
Messages
Meta
AI
The van smelled like stale pizza and regret. Molly squinted through binoculars at the suburban house, its front yard drowning in pink balloons. "Seventeen kids," she muttered. "That's seventeen presents minimum." Bill adjusted his fake mustache for the fourth time. "Walk me through the entry point again." "We go through the bouncy castle." "The bouncy castle," Bill repeated flatly. "It's connected to the back door. We bounce in, grab the goods from the gift table, bounce out. Silent. Professional." "Nothing about bouncing is silent, Molly. I'll sound like a asthmatic seal." She lowered the binoculars. "You got a better idea?" "What about the clown entrance?" "There's already a clown." "So we take out the clown." "We're not taking out Bonkers the Magnificent, Bill. He's a local legend." Bill groaned and slumped against the seat. The party music drifted across the street, some irritating pop song about sunshine. "The mom looks tough," he observed. "She runs a CrossFit gym." "Of course she does." Molly checked her watch. Cake cutting happened in twenty minutes. That was their window. "You remember the signal?" Bill sighed heavily. "I yell happy birthday." "Louder." "Happy birthday!"
created_at
"2026-02-08T16:10:02.481776+00:00"
Sunday, February 8th, 2026 at 4:10:02 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1698
moderation_latency
(null)
generation_time
10077
tokens_prompt
61
tokens_completion
267
native_tokens_prompt
75
native_tokens_completion
328
native_tokens_completion_images
(null)
native_tokens_reasoning
0
native_tokens_cached
0
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
"stop"
usage
0.008575
router
(null)
provider_responses
0
id
"msg_01Vep9Cnd5eQDsfbV6Se1XaH"
status
200
is_byok
false
latency
1698
endpoint_id
"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770566991-M00UbwjGpofhvDah0593"
upstream_id
"msg_01Vep9Cnd5eQDsfbV6Se1XaH"
total_cost
0.008575
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
90.4837%
Matches word count
n/a
neededClean
false
words
190
67.8098%
Dialogue to Total Word Ratio
Ratio: 57.89%, Deviation: 7.89%
neededClean
false
wordsTotal
190
wordsDialogue
110
79.1468%