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Run: 2026-09-29-01M3P2G9F77GBNT8MY5YR60KGR
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
8.8s
Cost:
$0.010950
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
11.43%
Dialogue to Total Word Ratio
(details)
55.7057%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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 adjusted her balloon-animal-shaped fanny pack and peered through the hedge at the birthday party. Bill crouched beside her, wearing a clown wig that did not fit the plan. "Explain the wig again," Molly whispered. "Camouflage," Bill said. "Everyone fears clowns, but nobody suspects them." "There are forty children in there, Bill. They will absolutely suspect you." "Children love me. I once won a staring contest with a toddler." "You lost. She blinked once and you cried." "That was a strategic retreat." Bill pointed at the gift table, a mountain of shiny paper and curly ribbon. "Forty presents. Ten minutes. In and out." "Thirty-nine," Molly said. "One belongs to the grandmother, and she's terrifying. I watched her chase a pigeon out of the yard with a rolling pin." "Fine. Thirty-nine." Bill tugged his wig. "You distract the parents with your magic act." "I don't have a magic act." "You have a quarter behind your ear." "That's just a quarter, Bill. I forgot it was there." A cheer erupted from the yard. Someone shouted about cake. "Cake," Bill breathed. "Nobody said cake." "Presents first, cake second." "Cake as payment?" "Cake as bonus." They shook on it, and Bill's wig fell into the hedge.
created_at
"2026-09-29T07:54:09.26Z"
9/29/2026, 7:54:09 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
8808
moderation_latency
(null)
generation_time
8808
tokens_prompt
75
tokens_completion
375
native_tokens_prompt
95
native_tokens_completion
1076
native_tokens_completion_images
(null)
native_tokens_reasoning
596
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
0.01095
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668449-3RcKvuPx7feThpjJLN1G"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668449-4LHMSlGGZK6HfBE2vTBB"
upstream_id
"msg_011CfXNRRjt8QgSJ4WLkGmgK"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNRRjt8QgSJ4WLkGmgK"
is_byok
false
latency
704
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.01095
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
99.98%
Matches word count
n/a
neededClean
false
words
202
11.43%
Dialogue to Total Word Ratio
Ratio: 62.14%, Deviation: 12.14%
neededClean
false
wordsTotal
206
wordsDialogue
128
55.7057%