Run: 2026-09-23-01M37Q9YM3W7H32ZAFKAFAGN5Z

Run Details

Duration:
21.1s
Cost:
$0.037880
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
87.69% Dialogue to Total Word Ratio (details)
93.8460% 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

AI
"Okay, Bill, walk me through it one more time." "Right. Six o'clock, the Hendersons' backyard. Little Timmy turns seven. Forty kids, one bouncy castle, a mountain of presents." "And our way in?" "I'm the clown." "You're afraid of clowns." "Which is why I'll be so convincing. Nobody expects a terrified clown to be a criminal." "Fine. What am I?" "You're the magician. You make the presents disappear. Literally." "I don't know any magic, Bill." "You don't need magic. You need a very big sack and confidence." "And the parents?" "Distracted by the cake. I've hired a second clown to drop it." "Is the second clown also afraid of clowns?" "Nobody's asked him." "What about the kids? Kids notice everything." "That's the genius part. We tell them it's a game. Whoever helps load the van gets a balloon animal." "You can't make balloon animals." "I can make balloon snakes." "Those are just balloons." "To a seven-year-old, that's a snake." Molly sighed and rubbed her temples. "Bill, what's our getaway?" "Pony rides, obviously." "We are not escaping on a pony." "Two ponies, Molly. I'm not an animal." "And the presents?" "The ponies carry them." "Bill." Bill beamed. "Very, very strong ponies."
created_at"2026-09-23T18:09:05.172Z" 9/23/2026, 6:09:05 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency21074
moderation_latency(null)
generation_time21074
tokens_prompt75
tokens_completion522
native_tokens_prompt95
native_tokens_completion1875
native_tokens_completion_images(null)
native_tokens_reasoning1386
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.03788
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186945-eULulOcaWNRhLsXkurxB"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186945-ZcvCDlcUc1dRd3tRAmhC"
upstream_id"msg_011CfLpThZg78EnYBJMzRZkK"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLpThZg78EnYBJMzRZkK"
is_byokfalse
latency1902
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.03788
cache_discount(null)
upstream_inference_cost0
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
100.00% Matches word count n/a
neededCleanfalse
words199
87.69% Dialogue to Total Word Ratio
Ratio: 96.02%, Deviation: 6.02%
neededCleanfalse
wordsTotal201
wordsDialogue193
93.8460%