Run: 2026-05-31-01KSYXHY7B8648FKD3JTAW68HT

Run Details

Duration:
21.4s
Cost:
$0.027990
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9920% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 30% 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
The blueprint was, in fact, a child's drawing of a house with a smiling sun in the corner. Molly smoothed it flat against the dashboard and tapped it with authority. "This," she announced, "is the Henderson residence." Bill squinted. "That's a crayon drawing. There's a dog the size of the chimney." "Reconnaissance from our inside man." "Your nephew is six." "He's embedded deep within enemy territory." Molly rolled up the masterpiece and stuffed it into the glove box, where it joined seventeen parking tickets and a half-eaten granola bar she chose not to acknowledge. "The target is a Saturday afternoon birthday party. Theme: pirates. Twelve children, two exhausted parents, and a mountain of unopened presents stacked by the patio doors." Bill pulled a balaclava from his jacket and yanked it over his head. Molly stared at him. "What are you doing?" "Disguise." "It's ninety degrees and there will be toddlers. You look like you're about to rob a bank in Antarctica." She tugged it off him with a wet pop. "We blend in. We're guests." "Whose guests? We don't know these people." "Nobody knows anybody at a kid's party. Half of them are just neighbors who came for the cake." Molly handed him a wrapped box. It was suspiciously light. "Here. Your cover gift." Bill shook it gently. Something rattled. "What's inside?" "Emptiness. Like the soul of capitalism." She checked her watch. "We arrive, we mingle, we compliment someone's child's terrible juggling, and when the piñata comes out, every adult in that backyard turns into a security failure. That's our window." "The piñata is the distraction?" "The piñata is *everything*. Sugar-blinded children swarming a papier-mâché donkey. Total chaos. We load the presents into the minivan and vanish before anyone realizes the donkey gave its life in vain." They sat in silence for a moment, contemplating the operation's elegance. "One question," Bill said. "Shoot." "Why are we stealing presents from children?" Molly turned to him slowly, as though he'd asked why water was wet. "Because, Bill, the resale market for slightly-used building blocks is *criminally* underexploited. There's a man in Tucson who pays cash for action figures. No questions. No backstory. Just love and currency." "That feels morally complicated." "Everything good feels morally complicated. That's how you know it's working." She popped the car door open and stepped into the sunshine, adjusting an enormous sunhat that screamed *harmless suburban aunt.* "Now bring the gift and try to look like you enjoy children." Bill emerged clutching his hollow box, his face arranged into something between a smile and a hostage's plea. From the backyard came the sound of screaming laughter and a parent shouting about juice boxes. "And if someone asks whose side we're on?" he whispered. "Birthday boy's or the cousins'?" Molly straightened his collar with maternal precision and gave him a confident pat on the cheek. "We're on nobody's side, Bill. We're professionals." She grinned. "Now follow me, and whatever you do—do not eat the cake before we've stolen the loot."
created_at"2026-05-31T11:43:52.055Z" 5/31/2026, 11:43:52 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1203
moderation_latency(null)
generation_time21339
tokens_prompt77
tokens_completion825
native_tokens_prompt93
native_tokens_completion1101
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"
usage0.02799
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01MVJzcuCggD4cKRBATpjmPq"
is_byokfalse
latency1201
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-1780227832-pGFyGbhK3Yx7ghrafHgK"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227832-YF6UumFq5fkpwCB4M8pD"
upstream_id"msg_01MVJzcuCggD4cKRBATpjmPq"
total_cost0.02799
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words502
0.00% Dialogue to Total Word Ratio
Ratio: 58.70%, Deviation: 28.70%
neededCleanfalse
wordsTotal506
wordsDialogue297
49.9920%