NC Bench
Overview
About
Tests
Models
Model
Claude Opus 4.5
Test
Dialogue tags
Scenario
Write 200 words with 10% dialogue
Run ID
2026-02-08-01KGYZK57DJMABF10EY5MJXA5P
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 pressed her face against the chain-link fence, watching the backyard transform into a unicorn-themed nightmare of streamers and balloons. Somewhere beneath that pile of glittering gift wrap lay their target: thirty-seven presents, conservatively estimated at four hundred dollars in Lego sets alone. Bill crouched beside her, consulting a hand-drawn map that looked like it had been sketched by someone having a medical emergency. "The bounce house is our blind spot," Molly whispered. "What about the clown?" "Clowns are irrelevant. They see nothing behind those painted smiles except the crushing weight of their life choices." Bill nodded solemnly, accepting this as gospel truth. He had dressed for the occasion in what he called "suburban camouflage," a polo shirt tucked aggressively into khaki shorts. Molly had opted for her usual black, reasoning that she could claim to be a grieving aunt if questioned. A minivan pulled into the driveway, disgorging children like a clown car in training. Parents followed, carrying presents wrapped in paper so aggressively cheerful it bordered on hostile. Molly checked her watch. They had exactly two hours until cake time, when sugar-induced chaos would provide their perfect cover. She smiled. "Ready?" "Born ready."
created_at
"2026-02-08T15:58:22.657146+00:00"
Sunday, February 8th, 2026 at 3:58:22 PM GMT+00:00
model
"anthropic/claude-4.5-opus-20251124"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1822
moderation_latency
(null)
generation_time
9276
tokens_prompt
61
tokens_completion
247
native_tokens_prompt
75
native_tokens_completion
300
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
0.007875
router
(null)
provider_responses
0
id
"msg_019yQtdfwN9wNWKjUfteYhhX"
status
200
is_byok
false
latency
1821
endpoint_id
"be883404-eb42-4b2d-b6e4-c7daa3aa8d62"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.5-opus-20251124"
api_type
"completions"
id
"gen-1770566292-I9YD7KVm0rbigswgqMli"
upstream_id
"msg_019yQtdfwN9wNWKjUfteYhhX"
total_cost
0.007875
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
100.0000%
Matches word count
n/a
neededClean
false
words
200
78.6549%
Dialogue to Total Word Ratio
Ratio: 17.00%, Deviation: 7.00%
neededClean
false
wordsTotal
200
wordsDialogue
34
89.3275%