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Run: 2026-09-23-01M37P2MVY6B9BYW2JMW7H1JTF
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
23.3s
Cost:
$0.046440
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
100.0000%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 spread the blueprints, which were really a hand-drawn map of the Pemberton backyard on the back of a pizza menu, across the hood of the getaway van. Bill leaned in, squinting through the drizzle, his fake moustache peeling at one corner. "The bouncy castle is our weak point," Molly said. Bill nodded gravely. He had once been ejected from a bouncy castle by a furious six-year-old named Trevor, and the wound had never healed. According to their intelligence, gathered mostly by pretending to deliver a trampoline, forty-three presents would be stacked beside the cake table by two o'clock. Most were wrapped in dinosaur paper. At least one was rumored to contain a remote-control helicopter, which Bill wanted badly enough to rethink his whole life. "We go in dressed as clowns," Bill whispered. Molly considered the risks. Clowns attracted children. Children asked questions. Children also bit, a fact she had learned the hard way at a christening in Leeds. "Clowns never get searched," Bill added. She folded the pizza menu into a tidy square and slipped it into her sock, where she kept all important documents. "Bring extra balloons." Bill saluted proudly, and his moustache finally fell into a puddle.
created_at
"2026-09-23T17:47:37.23Z"
9/23/2026, 5:47:37 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
5194
moderation_latency
(null)
generation_time
23249
tokens_prompt
75
tokens_completion
618
native_tokens_prompt
95
native_tokens_completion
2303
native_tokens_completion_images
(null)
native_tokens_reasoning
1875
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
0.04644
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790185657-xA5Varbzv19yIIvtOKDE"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790185657-iiPxO0WVZydbniSQKKjz"
upstream_id
"msg_011CfLnpkY7uSKWjzAAQAqVQ"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLnpkY7uSKWjzAAQAqVQ"
is_byok
false
latency
1237
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.04644
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
100.00%
Matches word count
n/a
neededClean
false
words
200
100.00%
Dialogue to Total Word Ratio
Ratio: 9.76%, Deviation: 0.24%
neededClean
false
wordsTotal
205
wordsDialogue
20
100.0000%