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Run: 2026-09-29-01M3P2K1SSNB2F1MNXA8883WKR
Run Details
Model:
Claude Sonnet 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
23.8s
Cost:
$0.034560
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.74%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
99.8705%
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 binoculars and peered through the hedge at the bouncy castle, where thirty screaming children ricocheted like popcorn. Bill crouched beside her, wearing a balaclava and a paper party hat. "Why the hat?" Molly whispered. "Camouflage," Bill said. "Nobody suspects a man in a party hat." "Everyone suspects a man in a balaclava and a party hat." "Details, Molly. Focus. Where are the presents?" Molly swept the binoculars toward the gazebo, where forty-two gift boxes sat guarded by a sweating clown and a grandmother gripping a cake knife. "Clowns are unpredictable," Bill muttered. "Then you distract the children while I swipe the loot." "Distract them how?" "You're wearing a party hat. Just be fun." Bill stared at her for a long moment. "I haven't been fun since 1998." "Then try magic." "I know one trick. I make my dignity disappear." Molly lowered the binoculars and sighed heavily. "Fine. You take the grandmother. I'll take the clown." "She has a knife, Molly!" "It's for cake." "Even worse," Bill whispered, adjusting his hat bravely. Across the lawn, the clown honked his nose, and both thieves flinched. "Abort?" Bill squeaked. "Never," said Molly. "Presents first, then cake."
created_at
"2026-09-29T07:55:39.711Z"
9/29/2026, 7:55:39 AM
model
"anthropic/claude-sonnet-5.5-20260928"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
3483
moderation_latency
(null)
generation_time
23805
tokens_prompt
75
tokens_completion
927
native_tokens_prompt
95
native_tokens_completion
3437
native_tokens_completion_images
(null)
native_tokens_reasoning
2950
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
0.03456
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer
(null)
request_id
"req-1790668539-dD1vQE6ypDUr42I6STJh"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790668539-2RtDTsiab3a3D3WChOkS"
upstream_id
"msg_011CfXNY6XgCBp38AFo4eeva"
provider_responses
0
endpoint_id
"99aaad94-923b-4fc1-b763-271ed5486f7a"
id
"msg_011CfXNY6XgCBp38AFo4eeva"
is_byok
false
latency
759
model_permaslug
"anthropic/claude-sonnet-5.5-20260928"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.03456
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
99.74%
Matches word count
n/a
neededClean
false
words
196
100.00%
Dialogue to Total Word Ratio
Ratio: 49.24%, Deviation: 0.76%
neededClean
false
wordsTotal
197
wordsDialogue
97
99.8705%