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Run: 2026-09-29-01M3P2JEAC0BT2PAEZ3T8EY7ZN
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 10% dialogue
Duration:
21.5s
Cost:
$0.029900
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
77.86%
Dialogue to Total Word Ratio
(details)
88.9205%
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 crouched behind the hydrangeas, binoculars trained on the Hendersons' backyard, where forty-seven children shrieked around a bouncy castle shaped like a unicorn. Beside her, Bill wore a balloon-animal hat he insisted was "tactical camouflage." The presents sat on a folding table under a banner reading HAPPY 6TH BIRTHDAY, CHESTER. Guarding them was a grandmother armed with a juice box and a terrifying stare. "Grandma's the problem," Molly whispered. "Distract her, and I'll take the gifts." Bill nodded, hat squeaking. "I know a clown." Molly closed her eyes. Twenty years of safecracking, museum infiltrations, and one incident involving a llama, and here she was, ruining a stranger's birthday. Chester had received three separate Lego sets from relatives who lacked imagination, and someone had to redistribute the wealth. Bill crawled toward the clown, who was smoking behind the garage. Molly watched him negotiate in hand gestures. Moments later the clown marched toward the grandmother, honking a horn, and began a magic trick involving scarves. Molly slid from the hydrangeas, pillowcase open like a hungry mouth. She swept up gifts, glitter dusting her sleeves. Then the unicorn castle deflated, and forty-seven children turned to stare at her. "Surprise! Happy birthday, Chester?" she said weakly.
created_at
"2026-09-29T07:55:19.763Z"
9/29/2026, 7:55:19 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3442
moderation_latency
(null)
generation_time
21451
tokens_prompt
75
tokens_completion
708
native_tokens_prompt
95
native_tokens_completion
2971
native_tokens_completion_images
(null)
native_tokens_reasoning
2473
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
0.0299
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668519-A8XDR4N2HFxj88exP70j"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668519-cDD5jaesNShV1pCGKKL0"
upstream_id
"msg_011CfXNWd7PJXdhaz1j1Ntt3"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNWd7PJXdhaz1j1Ntt3"
is_byok
false
latency
705
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.0299
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
77.86%
Dialogue to Total Word Ratio
Ratio: 17.07%, Deviation: 7.07%
neededClean
false
wordsTotal
205
wordsDialogue
35
88.9205%