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Run: 2026-09-23-01M37Q4DSJFTK50XNWMK0J9HPH
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 90% dialogue
Duration:
17.1s
Cost:
$0.030040
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
95.99%
Matches word count
(details)
100.00%
Dialogue to Total Word Ratio
(details)
97.9921%
Overall
Model input
User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% 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 unrolled a crayon drawing of the backyard across the hood of the van. "Okay, Bill, run it back. What's the target?" "Timmy Henderson's seventh birthday. Two o'clock. Bouncy castle, magician, forty-two presents." "Forty-two? You counted?" "I've been in the hedge since Tuesday, Molly." Molly sighed. "Fine. Entry point?" "We go in as clowns. Nobody questions a clown." "Everybody questions a clown. That's the whole thing about clowns." "Then we go in as the magician." "There's already a magician." "Then we make him disappear." "Bill, we're not whacking a magician." "I meant with a trick! I've been practicing the scarf one." "You can't do the scarf one." "I can do the scarf one." "You pulled a scarf out of your sleeve and it was my scarf. You stole my scarf to practice." Bill adjusted his rubber nose. "That's commitment." "Getaway?" "Pony rides. Slow, but untraceable." "And the kids?" "Distracted by cake. Seven-year-olds see cake, they go feral. We've got four minutes, tops." "And if Timmy notices?" "Timmy won't notice." "Why not?" "Because I'm bringing him a present too." "You're bringing a present to the party we're robbing?" "It's rude not to, Molly."
created_at
"2026-09-23T18:06:04.109Z"
9/23/2026, 6:06:04 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
4853
moderation_latency
(null)
generation_time
17063
tokens_prompt
75
tokens_completion
430
native_tokens_prompt
95
native_tokens_completion
1483
native_tokens_completion_images
(null)
native_tokens_reasoning
992
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
0.03004
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186764-3s57poBS67JcZTpb7xxL"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186764-UkAvy9wsRYwZsszGIjLj"
upstream_id
"msg_011CfLpEM1YxEdMuzyiCvjEX"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLpEM1YxEdMuzyiCvjEX"
is_byok
false
latency
1260
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.03004
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
95.99%
Matches word count
n/a
neededClean
false
words
192
100.00%
Dialogue to Total Word Ratio
Ratio: 89.29%, Deviation: 0.71%
neededClean
false
wordsTotal
196
wordsDialogue
175
97.9921%