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Run: 2026-09-23-01M37PE2PMJGRQPDJMGK7HQH8J
Run Details
Model:
Claude Opus 5.5 (Reasoning)
Test:
Dialogue tags
Scenario:
Write 200 words with 50% dialogue
Duration:
23.4s
Cost:
$0.039880
Provider:
Claude Platform on AWS
Evaluation summary
Score
Evaluator
Details Link
99.98%
Matches word count
(details)
99.63%
Dialogue to Total Word Ratio
(details)
99.8047%
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 spread the blueprints across the hood of the van. They were drawn in crayon, mostly purple. "Where did you get these?" Bill asked nervously. "The birthday boy's sister. Cost me a lollipop." "You bribed a six-year-old?" "She drove a hard bargain." Bill squinted at the page. A lopsided rectangle was labeled PRESANTS, surrounded by stick figures holding what appeared to be swords. "Who are these guys?" "Security," Molly said grimly. "The Hendersons hired a magician." Bill went pale. He had not forgotten the Kowalski job, the endless scarves, the dove that followed him home and still lived in his bathroom, judging him. "We go in during cake," Molly continued, tapping a smear of purple glitter. "Forty children, maximum sugar. Nobody watches gifts during candles. I slip in as a clown, you're the balloon guy." "I can only make snakes." "Then you'll make snakes. Confidently." "And if someone asks for a giraffe?" "Tell them it's a snake with ambition." Bill nodded slowly, then frowned. "Molly, what exactly are we stealing? Legos?" She folded the map with terrible dignity. "Bill. Somewhere in that pile is the last limited-edition Dino-Mech Megazord on the Eastern Seaboard." Bill gasped, clutching his heart.
created_at
"2026-09-23T17:53:51.845Z"
9/23/2026, 5:53:51 PM
model
"anthropic/claude-opus-5.5-20260921"
app_id
182717
external_user
(null)
streamed
true
cancelled
false
latency
5511
moderation_latency
(null)
generation_time
23325
tokens_prompt
75
tokens_completion
501
native_tokens_prompt
95
native_tokens_completion
1975
native_tokens_completion_images
(null)
native_tokens_reasoning
1491
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
0.03988
router
(null)
user_agent
"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer
(null)
request_id
"req-1790186031-VYsR3iQGkVF1iFLa9X1V"
session_id
(null)
preset_id
(null)
api_type
"completions"
id
"gen-1790186031-2rfFxKKDcA9IykbJGXec"
upstream_id
"msg_011CfLoJNJgcrweejt1pSNUm"
provider_responses
0
endpoint_id
"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id
"msg_011CfLoJNJgcrweejt1pSNUm"
is_byok
false
latency
1249
model_permaslug
"anthropic/claude-opus-5.5-20260921"
provider_name
"Claude Platform on AWS"
status
200
total_cost
0.03988
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
198
99.63%
Dialogue to Total Word Ratio
Ratio: 52.48%, Deviation: 2.48%
neededClean
false
wordsTotal
202
wordsDialogue
106
99.8047%