NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Dialogue tags
Scenario
Write 500 words with 30% dialogue
Run ID
2026-02-08-01KGYYXFYJMJ6Z4QG0NW1KAYAS
Model input
User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 30% 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 Birthday Heist Molly studied the invitation with the intensity of a jeweler examining a diamond. The glossy card featured cartoon balloons and promised "the most spectacular birthday celebration at Sunshine Garden Park this Saturday." "This is going to be the easiest job we've ever pulled," she announced. Bill looked up from his laptop, where he'd been scrolling through rental sites for clown costumes. "Easier than the museum?" "Way easier. These people are six-year-olds." "Good point," Bill admitted, scratching his chin. "Have you seen the gift list?" Molly flipped through the pages she'd printed from the party registry. "Forty-seven presents. Electronic toys, board games, a legitimate scooter, and—get this—a Nintendo Switch." Bill whistled low. "What's the security situation?" "That's the beautiful part. There is none. Just a bunch of parents standing around eating cupcakes while the birthday kid tears into gifts like a tiny gift-wrapping tornado." She tapped her finger on the paper. "The presents are stacked in that big pile right by the entrance to the pavilion." "Seems almost too easy," Bill said suspiciously. He'd been a professional thief for twelve years and understood that easy jobs usually came with complications. "What about the cake table?" "Directly behind the gift pile. We work that to our advantage." Molly began pacing, her mind already constructing the heist. "You go in as the face painter. Set up your little station right where you can see everything. When I give the signal, you start chaos." "What kind of chaos are we talking about?" "You accidentally knock over the punch bowl," she said. "Something massive. Something that requires everybody's attention." Bill nodded slowly. "While they're cleaning, you load the gifts into the van?" "Exactly. I'll be dressed as the balloon artist. Nobody suspects a balloon artist." Molly grabbed a piece of paper and sketched a rough map of the park. "I've timed the party schedule. We have a forty-five-minute window between present opening and the piñata." "What about the piñata situation? Won't that be a problem?" "By that time, we'll be halfway down the highway with seventy pounds of children's toys in the back of our vehicle." Bill leaned back in his chair and grinned. "You know, in all my years of grand theft, burglary, and elaborate schemes, I never thought I'd be planning a heist on a six-year-old's birthday party." "First time for everything," Molly said. "Besides, we're not actually stealing from the kid. We're stealing from their gifts, which were clearly meant to be appropriated by hardworking professionals such as ourselves." "That's some interesting moral gymnastics." "It's called making peace with the universe," she replied, beginning to organize their equipment. "Now, about that clown costume..."
created_at
"2026-02-08T15:46:31.650638+00:00"
Sunday, February 8th, 2026 at 3:46:31 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
375
moderation_latency
(null)
generation_time
7998
tokens_prompt
61
tokens_completion
594
native_tokens_prompt
75
native_tokens_completion
671
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
0.00343
router
(null)
provider_responses
0
id
"msg_016hWrqRb15u1TcihE99cYCD"
status
200
is_byok
false
latency
375
endpoint_id
"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770565582-MZLnW6hvEN75yfMKSgfe"
upstream_id
"msg_016hWrqRb15u1TcihE99cYCD"
total_cost
0.00343
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
0.0000%
Matches word count
n/a
neededClean
false
words
455
0.0000%
Dialogue to Total Word Ratio
Ratio: 70.55%, Deviation: 40.55%
neededClean
false
wordsTotal
455
wordsDialogue
321
0.0000%