Run: 2026-05-31-01KSYXE1EFBEF6A4XS7TXP34CS

Run Details

Duration:
10.0s
Cost:
$0.012940
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.92% Matches word count (details)
66.53% Dialogue to Total Word Ratio (details)
83.2236% 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
"So we're really doing this?" Bill whispered. "Stealing from kids?" "Not stealing. Liberating," Molly said. "Those presents are wasted on six-year-olds." "There's gonna be a clown." "I'm not afraid of clowns, Bill." "I am! Deeply!" "Focus. We go in dressed as the entertainment. You're the magician." "Why am I the magician?" "Because you've got the hat." "It's a beanie!" "Close enough. I'll be the face painter. Nobody suspects the face painter." "And then what?" "Then, while you're pulling rabbits out of nowhere, I load the gifts into the van." "I don't have a rabbit." "Improvise! Pull out a sock or something." "Kids hate socks, Molly." "So do I, but here we are." "What if the parents recognize us?" "From where? Our last heist was a yarn store. Grandmas don't throw birthday parties." "This one might." "Bill." "Yes?" "Trust the plan." "The plan is theft and clown trauma." "The plan is genius." "What about the cake?" "What about it?" "Can we take the cake?" "We're not taking the cake." "But—" "Fine! We take the cake." "And the bouncy castle?" "It won't fit in the van, Bill." "We deflate it." "...Okay, that's actually brilliant." "See? Now who's the magician?"
created_at"2026-05-31T11:41:44.284Z" 5/31/2026, 11:41:44 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency971
moderation_latency(null)
generation_time9986
tokens_prompt77
tokens_completion354
native_tokens_prompt93
native_tokens_completion499
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.01294
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_012NDdhpdXLPTUE4zy8vFF76"
is_byokfalse
latency971
model_permaslug"anthropic/claude-4.8-opus-20260528"
provider_name"Anthropic"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.16.0; linux; x64))"
http_referer(null)
request_id"req-1780227704-5FLJE7BDXcMQcLwy5jXj"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227704-jiTNSm2z4RzImXQ6XH0U"
upstream_id"msg_012NDdhpdXLPTUE4zy8vFF76"
total_cost0.01294
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.92% Matches word count n/a
neededCleanfalse
words197
66.53% Dialogue to Total Word Ratio
Ratio: 97.99%, Deviation: 7.99%
neededCleanfalse
wordsTotal199
wordsDialogue195
83.2236%