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Run: 2026-09-23-01M37PTK36B1FSXRPB5JMC7KW5
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
21.9s
Cost:
$0.038880
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.74%
Matches word count
(details)
83.97%
Dialogue to Total Word Ratio
(details)
91.8595%
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, run it back. What's the plan?" "We go in as clowns." "Why clowns?" "Nobody questions a clown, Molly. A clown can walk anywhere. Hospitals. Banks. Weddings." "Clowns absolutely get questioned at weddings." "Fine. Not weddings. But a seven-year-old's birthday? We're royalty." "And the presents?" "Stacked on the table by the bouncy castle. I've been casing it for three days." "From where?" "The hedge." "Bill, the mom called the police about a hedge man." "That was a different hedge man." "There are two hedge men?" "It's a competitive neighborhood." Molly rubbed her temples. "Okay. We get in. Then what?" "I do balloon animals. Big distraction. While they're mesmerized, you load the presents into the van." "Can you make balloon animals?" "I can make a snake." "That's just a balloon." "It's a very confident balloon. It believes in itself." "And the getaway?" "My cousin Terry's ice cream truck." "Terry who got arrested for selling ice cream in January?" "He's a visionary, Molly." "And if the kids notice?" "They're children, Molly. They're three feet tall. What are they gonna do?" "Bill, it's a karate party." Bill went pale. "...Right. New plan. We go in as karate instructors."
created_at
"2026-09-23T18:00:41.851Z"
9/23/2026, 6:00:41 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
5720
moderation_latency
(null)
generation_time
21873
tokens_prompt
75
tokens_completion
480
native_tokens_prompt
95
native_tokens_completion
1925
native_tokens_completion_images
(null)
native_tokens_reasoning
1437
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
0.03888
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186441-wKtUWueEKBKa6N39OYyu"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186441-uhtkqtIBPKlswDHvKwWC"
upstream_id
"msg_011CfLopbt61fgk94trzrCB9"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLopbt61fgk94trzrCB9"
is_byok
false
latency
1348
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.03888
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
99.74%
Matches word count
n/a
neededClean
false
words
196
83.97%
Dialogue to Total Word Ratio
Ratio: 96.46%, Deviation: 6.46%
neededClean
false
wordsTotal
198
wordsDialogue
191
91.8595%