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Run: 2026-09-23-01M37NY3DJDY1ZYZDKQWMCJH1B
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
24.2s
Cost:
$0.045100
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
100.00%
Matches word count
(details)
79.63%
Dialogue to Total Word Ratio
(details)
89.8156%
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 across the hood of the getaway car, which was a lime-green minivan with a bumper sticker that read MY CHILD IS AN HONOR STUDENT. The blueprints were, technically, a crayon drawing of the Hendersons' backyard that Molly had obtained by befriending a six-year-old at the park. The six-year-old had charged her two juice boxes and a sticker. Bill squinted at the bouncy castle, rendered in furious purple. "Security?" he asked. "One clown. Possibly armed with balloons." Bill nodded gravely. He had been bitten by a balloon animal once, or at least that was how he told it. The truth involved a poodle-shaped balloon, a static shock, and forty minutes of crying behind a Chuck E. Cheese. The plan was elegant in its simplicity. Molly would pose as a substitute magician. Bill would wait by the gift table disguised as a piƱata. When the children began swinging, he would simply roll away with the loot. "What if the little monsters hit me?" "That's why you're wearing the helmet." Bill adjusted the helmet. It was shaped like a donkey. He had never felt more professional in his life. Across town, a clown sensed danger and reached for his balloons.
created_at
"2026-09-23T17:45:08.294Z"
9/23/2026, 5:45:08 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
5161
moderation_latency
(null)
generation_time
24130
tokens_prompt
75
tokens_completion
730
native_tokens_prompt
95
native_tokens_completion
2236
native_tokens_completion_images
(null)
native_tokens_reasoning
1812
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
0.0451
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790185508-lU6wEn6uIw8z5V6Jqxzo"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790185508-Cd8Vhfq1PfFH1BcyZe2R"
upstream_id
"msg_011CfLndmj1HmVK75gov4RQe"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLndmj1HmVK75gov4RQe"
is_byok
false
latency
1168
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.0451
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
201
79.63%
Dialogue to Total Word Ratio
Ratio: 16.91%, Deviation: 6.91%
neededClean
false
wordsTotal
207
wordsDialogue
35
89.8156%