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Run: 2026-09-23-01M37PG30C16W8D8NCZEYKGVFF
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
27.2s
Cost:
$0.048320
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)
99.9981%
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 blueprint across the hood of the getaway van, which was actually an ice cream truck with its jingle permanently stuck on Greensleeves. The blueprint was also not a blueprint. It was a birthday invitation, covered in glitter unicorns, that Bill had peeled off a lamppost. Bill leaned in, squinting at the rainbow lettering. He traced the route with a finger sticky from a stolen lollipop: through the side gate, past the bouncy castle, under the snack table, straight to the presents stacked beside the cake like a small, extremely festive treasury. "What's security like?" Molly asked. "Twelve six-year-olds. One clown. Possibly a grandma." Molly nodded grimly. She had met clowns. One had once twisted her into a balloon giraffe so tightly it took three firefighters and a pin to free her. The plan was elegant. Bill would pose as a magician and distract the guests with the only trick he knew, which involved losing a coin permanently. Molly would slip behind the hydrangeas and fill a sack with every shiny box in sight. "And if the birthday girl notices?" Bill swallowed hard. "Then we run. Fast." Somewhere down the street, a six-year-old sharpened a plastic sword and waited.
created_at
"2026-09-23T17:54:57.696Z"
9/23/2026, 5:54:57 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
6673
moderation_latency
(null)
generation_time
27129
tokens_prompt
75
tokens_completion
687
native_tokens_prompt
95
native_tokens_completion
2397
native_tokens_completion_images
(null)
native_tokens_reasoning
1967
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
0.04832
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186097-Hrrzu7BBFG4pZeNxgnEg"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186097-eVXgxcHRjVSpCJxf2NFt"
upstream_id
"msg_011CfLoPDsZs2LHRHsVw3yrH"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLoPDsZs2LHRHsVw3yrH"
is_byok
false
latency
1963
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.04832
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
100.00%
Dialogue to Total Word Ratio
Ratio: 10.73%, Deviation: 0.73%
neededClean
false
wordsTotal
205
wordsDialogue
22
99.9981%