NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-09-29-01M3P2K99TJ83FGQP408H5YY8P
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
11.6s
Cost:
$0.016750
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
50.51%
Dialogue to Total Word Ratio
(details)
75.2466%
Overall
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 binoculars and peered through the hedge at the birthday party. Bill crouched beside her, holding a bag of sandwiches. "Bouncy castle's the problem," Molly whispered. "Forty children, one clown, and a mountain of presents." "I'm not afraid of a clown," Bill said. "You fainted at the last one." "That was a mime. Different thing entirely. Mimes are unsettling." Molly sighed and unrolled a crude map drawn on a napkin. "Here's the plan. You go in dressed as the pizza guy. Distract the parents. I'll slip in through the garden, swap the presents with these identical empty boxes, and we're gone in ninety seconds." "Why do we have empty boxes?" "Because I'm a professional, Bill." He examined one. "This one says 'Happy Retirement.'" "We're working with a budget." A shriek erupted from the party. A child in a dinosaur costume sprinted past, chased by three others. "Also," Bill said, "what if the kids catch us?" "Then we bribe them with cake. Never negotiate with a child holding a sugar advantage." Bill nodded solemnly and pulled a pizza hat from his bag. It read Gino's. Molly grinned, tightened her gloves, and whispered, "Let's go ruin a birthday."
created_at
"2026-09-29T07:55:47.393Z"
9/29/2026, 7:55:47 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3572
moderation_latency
(null)
generation_time
11568
tokens_prompt
75
tokens_completion
532
native_tokens_prompt
95
native_tokens_completion
1656
native_tokens_completion_images
(null)
native_tokens_reasoning
1201
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
0.01675
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668547-X7MkRN2DpJd6XRar5dey"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668547-CsXq04u1LKfOeuHTsSut"
upstream_id
"msg_011CfXNYfHfKi69zNsLtGMtH"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNYfHfKi69zNsLtGMtH"
is_byok
false
latency
708
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.01675
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
99.98%
Matches word count
n/a
neededClean
false
words
198
50.51%
Dialogue to Total Word Ratio
Ratio: 59.09%, Deviation: 9.09%
neededClean
false
wordsTotal
198
wordsDialogue
117
75.2466%