NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-09-29-01M3P2AG8TN5CNKZKJYMXY0XBT
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
9.3s
Cost:
$0.010770
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
14.30%
Matches word count
(details)
36.79%
Dialogue to Total Word Ratio
(details)
25.5447%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% 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
"Okay, Bill, repeat the plan." "We sneak into Braxton Hendry's sixth birthday party, grab every present, and leave before cake." "Before cake? Why?" "Cake is where they get sentimental, Molly." "Wrong. Cake is where they get feral. Six-year-olds on frosting are raccoons with lawyers." "Fine. How do we get in?" "You're the magician. Balloon Bill." "I refuse to be Balloon Bill." "Then you're the clown's understudy. Here's the wig." "It's damp." "It's committed to the role. I'll be the bouncy castle inspector." "Nobody inspects bouncy castles." "Exactly. Nobody will question me." "What if there's a piñata?" "We take the piñata. Candy is currency, Bill." "What if a kid catches us?" "Give them a balloon animal and a stern look. Kids respect confidence." "I only know one animal." "Which?" "A sad, lumpy sausage." "Perfect. Say it's a dachshund." "It's always a dachshund." "Great. Van's out back. Bag count?" "Twelve bags, one wagon, zero guilt." "A little guilt, Bill. A little is healthy." "Fine. A little guilt. Let's go." "Wait, why is the wig moving?" "...Molly, I think it's still occupied."
created_at
"2026-09-29T07:50:59.615Z"
9/29/2026, 7:50:59 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
9271
moderation_latency
(null)
generation_time
9271
tokens_prompt
75
tokens_completion
396
native_tokens_prompt
95
native_tokens_completion
1058
native_tokens_completion_images
(null)
native_tokens_reasoning
576
native_tokens_cached
0
num_media_prompt
(null)
num_input_audio_prompt
(null)
num_media_completion
0
num_search_results
(null)
num_fetches
(null)
web_search_engine
(null)
origin
"https://ncbench.com/"
is_byok
false
finish_reason
"stop"
native_finish_reason
"end_turn"
service_tier
"default"
usage
0.01077
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668259-9uAnArSl6qbkYVkeu9Af"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668259-dHQVIiklq1mBYqTpy7Tu"
upstream_id
"msg_011CfXNBT1PQ2xhuZ841kB9d"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNBT1PQ2xhuZ841kB9d"
is_byok
false
latency
717
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.01077
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Claude Platform on AWS"
response_cache_source_id
(null)
data_region
"global"
workspace_id
"97e315e5-d303-487d-83c1-83180e8a13d4"
Evaluation details
Result
Evaluator
Details
Meta Data
14.30%
Matches word count
n/a
neededClean
false
words
179
36.79%
Dialogue to Total Word Ratio
Ratio: 100.00%, Deviation: 10.00%
neededClean
false
wordsTotal
181
wordsDialogue
181
25.5447%