NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-09-29-01M3P2DW389Z08Q2ZM110BD4ZH
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
8.7s
Cost:
$0.010540
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
43.38%
Matches word count
(details)
53.29%
Dialogue to Total Word Ratio
(details)
48.3340%
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," Molly whispered. "We sneak into Tommy Pickett's sixth birthday party, grab every present, and leave before the cake." "Why before the cake?" "Because last time you said cake makes me sentimental." "You cried at a graduation we were robbing, Bill." "That tuba solo was beautiful!" "Focus. I'm the clown. You're the bouncy castle inspector." "Nobody inspects bouncy castles, Molly." "Exactly, so nobody will question you. The presents are stacked by the unicorn piñata. When I honk my nose, you grab the bags." "And if a child asks who I am?" "Say you're from the Department of Inflatables." "That's not a real department." "Bill, they're six. They think the moon follows their car." "Fair. What if the parents get suspicious?" "I'll juggle. Nobody suspects a juggler. They're too busy praying I don't drop the knives." "You're juggling knives?" "Butter knives. Mostly." "Molly, this feels wrong." "It's a heist, Bill. It's supposed to feel wrong." "No, I mean the piñata is staring at me." "It's a unicorn, Bill. Get it together." "Its eyes follow me." "Honk incoming. Three, two, one..."
created_at
"2026-09-29T07:52:50.032Z"
9/29/2026, 7:52:50 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3926
moderation_latency
(null)
generation_time
8685
tokens_prompt
75
tokens_completion
423
native_tokens_prompt
95
native_tokens_completion
1035
native_tokens_completion_images
(null)
native_tokens_reasoning
578
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
0.01054
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668370-p5OzSvtDWUHNZLN8INEk"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668370-3l9leXJ45fUBlTy2Kibs"
upstream_id
"msg_011CfXNKbBVTUnjJXSu2bTNe"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNKbBVTUnjJXSu2bTNe"
is_byok
false
latency
814
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.01054
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
43.38%
Matches word count
n/a
neededClean
false
words
183
53.29%
Dialogue to Total Word Ratio
Ratio: 98.91%, Deviation: 8.91%
neededClean
false
wordsTotal
183
wordsDialogue
181
48.3340%