NC Bench
Overview
About
Tests
Models
Vendors
Run: 2026-02-18-01KHQ92VQMFRFW3GMKX7VRW4MA
Run Details
Model:
Claude Sonnet 4.6
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.1s
Cost:
$0.004590
Provider:
Anthropic
Evaluation summary
Score
Evaluator
Details Link
98.71%
Matches word count
(details)
90.18%
Dialogue to Total Word Ratio
(details)
94.4462%
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 pressed her back against the garden fence, clutching a clipboard covered in crayon drawings she'd stolen from a recycling bin as a disguise. "Why do we need a clipboard?" Bill whispered. "It makes us look official." "We're wearing ski masks." "Professional ski masks." Bill peered through a gap in the fence at the bouncy castle, the balloon animals, and a table stacked high with wrapped gifts. A clown was making a poodle out of a long pink balloon. "The clown is going to be a problem," Bill muttered. "Leave the clown to me." "What does that mean?" "I have a plan involving his bicycle horn." "That is not a plan." Molly tapped her clipboard with authority. She had drawn a detailed map of the garden on one of the crayon pages, complete with stick figures labeled ENEMY and PRESENTS and one labeled SUSPICIOUSLY LARGE CAKE. "Why is the cake suspicious?" Bill asked. "Because children jump out of cakes." "That doesn't happen at real parties." "It happened to me once and I've never recovered." Bill looked at her for a long moment. "Let's just go buy our own presents." "Where's the fun in that?"
created_at
"2026-02-18T02:25:59.377945+00:00"
2/18/2026, 2:25:59 AM
model
"anthropic/claude-4.6-sonnet-20260217"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
988
moderation_latency
(null)
generation_time
8029
tokens_prompt
77
tokens_completion
307
native_tokens_prompt
75
native_tokens_completion
291
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
0.00459
router
(null)
provider_responses
0
id
"msg_01MiaAVrLS4bX5MdwVSRiaaf"
status
200
is_byok
false
latency
840
endpoint_id
"6d408764-7dd7-4626-bb87-a6cc1589bc86"
provider_name
"Anthropic"
model_permaslug
"anthropic/claude-4.6-sonnet-20260217"
api_type
"completions"
id
"gen-1771381550-4z9lEFKARrUe0Ig0RJ7D"
upstream_id
"msg_01MiaAVrLS4bX5MdwVSRiaaf"
total_cost
0.00459
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Anthropic"
Evaluation details
Result
Evaluator
Details
Meta Data
98.71%
Matches word count
n/a
neededClean
false
words
194
90.18%
Dialogue to Total Word Ratio
Ratio: 44.33%, Deviation: 5.67%
neededClean
false
wordsTotal
194
wordsDialogue
86
94.4462%