NC Bench
Overview
About
Tests
Categories
Models
Vendors
Compare
Run: 2026-07-25-01KYCPVHVN6H0N1YX0VV6BZ5QF
Run Details
Model:
Claude Opus 5
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
10.4s
Cost:
$0.012690
Provider:
Amazon Bedrock
Evaluation summary
Score
Evaluator
Details Link
93.65%
Matches word count
(details)
79.81%
Dialogue to Total Word Ratio
(details)
86.7300%
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
"So we're clear," Molly said. "You're the clown." "I'm not the clown." "You've got the shoes." "These are my normal shoes." "Bill, they're eleven inches long." "I have wide feet. Broad. Distinguished." "Wear the wig." "The wig itches." "The wig gets you past the mother, and the mother is the only thing between us and forty wrapped boxes stacked in a conservatory like a Christmas display." "What's in them?" "Does it matter?" "It matters if it's all socks. I'm not going to prison over socks." "It's a seventh birthday, Bill. There'll be tablets. Consoles. One of those scooters that costs more than my car." "Your car costs eighty pounds." "Which proves my point beautifully. Now. Twelve-fifteen, cake comes out, lights go down, everyone sings. That's ninety seconds of pure darkness and screaming." "Screaming?" "Children sing like that." "And you're where?" "Conservatory. Bin bags. Fire exit." "And I'm juggling." "You're distracting." "I can't juggle." "Then drop things. Children adore incompetence." "That's the nicest thing you've ever said to me." "Twelve-fifteen, Bill." "And if the mother recognises me?" "From where?" "I did her wedding. Same wig." Molly closed her eyes. "Wear the nose."
created_at
"2026-07-25T13:18:56.379Z"
7/25/2026, 1:18:56 PM
model
"anthropic/claude-opus-5-20260723"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
1752
moderation_latency
178
generation_time
10148
tokens_prompt
75
tokens_completion
322
native_tokens_prompt
93
native_tokens_completion
489
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
0.01269
router
(null)
provider_responses
0
endpoint_id
"76cb4608-f48c-483d-8da8-9957fb44244e"
id
"msg_011CdNqoVV8wGT6MpKYHBHs3"
is_byok
false
latency
1752
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-1784985536-uscoxjCFOuHVgcDpqBdY"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1784985536-JQbawXJaw5hr9EXH9QWZ"
upstream_id
"msg_011CdNqoVV8wGT6MpKYHBHs3"
total_cost
0.01269
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
93.65%
Matches word count
n/a
neededClean
false
words
191
79.81%
Dialogue to Total Word Ratio
Ratio: 96.89%, Deviation: 6.89%
neededClean
false
wordsTotal
193
wordsDialogue
187
86.7300%