NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-07-25-01KYCPNJWBH3CV8BZSR5A3GK84
Run Details
Model:
Claude Opus 5
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
10.4s
Cost:
$0.012790
Provider:
Amazon Bedrock
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
99.9992%
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
"Right," said Molly. "The Hargreaves party. Saturday. Fourteen children." "Fourteen?" "Fourteen, Bill." "That's a lot of children." "It's a manageable number of children." "For what?" "For stealing from." Bill set down his tea. "Molly, they're eight." "Nine, some of them. And their presents are worth four hundred quid, minimum. Have you seen what parents buy now? Tablets. Actual tablets, for children who still eat glue." "I ate glue." "You still eat glue, Bill, that's not the point." "The point is it's Christmas-adjacent thievery. It's got a whiff about it." "It's June." "Then it's worse. There's no season for it." Molly unfolded a napkin covered in biro. "Here's the garden. Here's the bouncy castle. Here's you, in a costume." "What costume?" "Clown." "Absolutely not." "Magician, then." "Better." "You do twenty minutes of card tricks, they all watch you, I go in through the utility room, out the side gate with a bin bag full of Lego." "I only know one card trick." "Do it slowly." "And the presents? Fourteen children notice fourteen missing presents, Molly." "By then we're in Dover." Bill considered this. "Do magicians get cake?" "Magicians get cake." "Then I'm in," said Bill, "but I'm not doing balloons."
created_at
"2026-07-25T13:15:40.817Z"
7/25/2026, 1:15:40 PM
model
"anthropic/claude-opus-5-20260723"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1565
moderation_latency
(null)
generation_time
10279
tokens_prompt
75
tokens_completion
327
native_tokens_prompt
93
native_tokens_completion
493
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)
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
0.01279
router
(null)
provider_responses
0
endpoint_id
"76cb4608-f48c-483d-8da8-9957fb44244e"
id
"msg_011CdNqZ4Wq4vgNEt2M91RcD"
is_byok
false
latency
1565
model_permaslug
"anthropic/claude-opus-5-20260723"
provider_name
"Amazon Bedrock"
status
200
user_agent
"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer
(null)
request_id
"req-1784985340-VsbEtTIzEQAQitjpc9iZ"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1784985340-yoKFda2jTXoRfc6IYB8x"
upstream_id
"msg_011CdNqZ4Wq4vgNEt2M91RcD"
total_cost
0.01279
cache_discount
(null)
upstream_inference_cost
0
provider_name
"Amazon Bedrock"
response_cache_source_id
(null)
data_region
"global"
Evaluation details
Result
Evaluator
Details
Meta Data
100.00%
Matches word count
n/a
neededClean
false
words
199
100.00%
Dialogue to Total Word Ratio
Ratio: 90.50%, Deviation: 0.50%
neededClean
false
wordsTotal
200
wordsDialogue
181
99.9992%