NC Bench
Overview
About
Tests
Models
Model
Claude Haiku 4.5
Test
Dialogue tags
Scenario
Write 200 words with 50% dialogue
Run ID
2026-02-08-01KGYZFHRJM3VBTP0XBAZ6NRZR
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
Molly adjusted her fake mustache while Bill spread out the floor plan on the carpet. The children's birthday party was tomorrow, and they'd finally found their mark: a house full of unopened presents worth thousands. "The presents arrive at noon," Molly said, tapping the diagram. "We go in through the kitchen window while everyone's singing happy birthday." Bill frowned. "Won't they notice two adults crawling through a window?" "Not if you move faster than a three-year-old, which shouldn't be difficult." "Fair point. What about security?" "They hired a clown. His only job is making balloon animals." "A clown?" Bill groaned. "That's somehow worse than actual security." "Exactly. We grab the presents, load the van, and we're gone in eight minutes." Bill studied her face. "You've thought about this way too much." "You say that like it's a bad thing. Besides, I've already cased the place twice." "Of course you have." He rolled up the plans. "When do we start?" Molly grinned. "Tomorrow, right after the piƱata breaks. Everyone will be too distracted eating candy to notice their gifts disappearing." Bill shook his head, laughing despite himself.
created_at
"2026-02-08T15:56:21.920923+00:00"
Sunday, February 8th, 2026 at 3:56:21 PM GMT+00:00
model
"anthropic/claude-4.5-haiku-20251001"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3263
moderation_latency
(null)
generation_time
6596
tokens_prompt
61
tokens_completion
253
native_tokens_prompt
75
native_tokens_completion
290
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
0.001525
router
(null)
provider_responses
0
id
"msg_01A9VrqWNHoh1FY9WMCGN1y6"
status
200
is_byok
false
latency
3263
endpoint_id
"41d2915a-92e6-4993-b537-210b4e10cba8"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-haiku-20251001"
api_type
"completions"
id
"gen-1770566174-ZTTeSnpVFu4HJ54weIF6"
upstream_id
"msg_01A9VrqWNHoh1FY9WMCGN1y6"
total_cost
0.001525
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
81.2727%
Matches word count
n/a
neededClean
false
words
188
0.0226%
Dialogue to Total Word Ratio
Ratio: 67.02%, Deviation: 17.02%
neededClean
false
wordsTotal
188
wordsDialogue
126
40.6477%