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Run: 2026-09-29-01M3P2MEDDATVVD52CDZAJ43E3
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
11.4s
Cost:
$0.012090
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
86.38%
Matches word count
(details)
97.03%
Dialogue to Total Word Ratio
(details)
91.7056%
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 fake mustache and peered through the hedge at the birthday party. A bouncy castle wobbled in the yard, and toddlers ricocheted inside it like caffeinated pinballs. Beside her, Bill crouched in a full-body dinosaur costume, his tail sweeping a neat arc through the mulch. "Presents are on the table by the balloon arch," she whispered. "Forty minutes until cake." "I still think the disguise is brilliant," Bill said. "You look like a dinosaur, Bill." "Exactly. Nobody questions a dinosaur at a children's party." "You refused the clown outfit." "Clowns are terrifying. I have standards." Molly unfolded a hand-drawn map, smoothing it over her knee while a parent wandered past holding a juice pouch. Both thieves froze until the man wandered off, humming. "I'll distract the adults as the magician's assistant," she said. "You stuff the gifts into the tail." "The tail isn't spacious." "Then be selective. Anything bicycle-shaped." Bill nodded gravely. "And if a child catches me?" "Roar." "Roar how?" "Like you mean it." Bill attempted a small, wounded roar. A nearby squirrel abandoned its acorn and fled. Molly closed her eyes. "We'll work on it."
created_at
"2026-09-29T07:56:25.394Z"
9/29/2026, 7:56:25 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4096
moderation_latency
(null)
generation_time
11346
tokens_prompt
75
tokens_completion
412
native_tokens_prompt
95
native_tokens_completion
1190
native_tokens_completion_images
(null)
native_tokens_reasoning
727
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
0.01209
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668585-aLfRXfG0slphGk743jnq"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668585-CRFBDylxXJ7uTQSdLyhF"
upstream_id
"msg_011CfXNbTkDBmXKCmGHSQqvC"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNbTkDBmXKCmGHSQqvC"
is_byok
false
latency
716
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.01209
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
86.38%
Matches word count
n/a
neededClean
false
words
189
97.03%
Dialogue to Total Word Ratio
Ratio: 45.83%, Deviation: 4.17%
neededClean
false
wordsTotal
192
wordsDialogue
88
91.7056%