Run: 2026-05-29-01KSSJW1EVXEDWANKTR7Z2QPHN

Run Details

Duration:
21.3s
Cost:
$0.027815
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.92% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9595% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 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

AI
Molly spread the blueprint across the table, smoothing out the wrinkles with the reverence of a surgeon prepping for transplant. Bill leaned over her shoulder, squinting. "That's a drawing of a house," he said. "With a chimney and everything." "It's a tactical overview." "It's got a smiley sun in the corner." "I had to use Madison's crayons. She wouldn't let me near the good markers." Molly tapped the center of the page. "Focus, Bill. The party's at fourteen hundred hours. The presents will be stacked here, by the bouncy castle." Bill scratched his stubble. "Walk me through it again. Slowly. Use small words." "We arrive disguised as entertainers. You're the clown. I'm the magician." "Why do you get to be the magician?" "Because I can do magic." "You did one card trick at Christmas and Aunt Carol cried." "She cried because it was beautiful." Molly straightened up. "While the kids are distracted by your performance, I slip behind the bouncy castle and load the gifts into the van." Bill folded his arms. "And what exactly is my performance?" "Balloon animals. Juggling. The usual clown business." "I can't juggle, Molly. I can barely hold two things at once. I dropped my phone in the toilet last Tuesday while holding nothing else." "Then make balloons." "I made a balloon dog yesterday and it looked like a deflated handshake. A child would weep." Molly pinched the bridge of her nose. "Bill. These are six-year-olds. Their standards are catastrophically low. One of them ate a fistful of sand at the last party and called it 'crunchy.'" "That's fair," Bill admitted. "Sand is underrated." "The point is, nobody's grading your technique. You just have to keep them occupied for nine minutes." "Nine whole minutes? With balloons?" "Or honk a horn. Fall over. Children are essentially drunk adults. They love when you fall over." Bill considered this. "I am good at falling over." "It's your one true talent." "And after I'm done falling over?" "You exit through the back, we drive away, and we're swimming in unwrapped wonders by sundown. Robots, dolls, possibly a scooter." "What if they're all just socks?" Bill said darkly. "What if we risk everything for a sack of educational gifts and one of those wooden puzzles for developing fine motor skills?" Molly paused. This had genuinely not occurred to her. "That's a risk we take," she said finally. "Every heist has uncertainty." "You stole a vending machine last month and it was full of expired pretzels." "That was a learning experience." "You cried in the car." "They were emotional pretzels, Bill." Molly rolled up the blueprint with crisp finality. "Are you in or not?" Bill stared at the smiley sun in the corner for a long moment. Then he sighed. "Fine. But I'm not wearing the wig. It smells like a stranger's regret." "You'll wear the wig." "I'll wear the wig," he muttered. "But if there's a piñata, it's mine. I have unfinished business with piñatas." Molly smiled. "Now you're thinking like a professional."
created_at"2026-05-29T10:00:56.549Z" 5/29/2026, 10:00:56 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1276
moderation_latency(null)
generation_time21262
tokens_prompt77
tokens_completion811
native_tokens_prompt93
native_tokens_completion1094
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"
usage0.027815
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_013uyjimwUucZhCSq98iWBrf"
is_byokfalse
latency1276
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-1780048856-69uNyPFavekbGsp2yyyZ"
session_id(null)
api_type"completions"
id"gen-1780048856-BWiCxTJbXdxIjhxCdoR8"
upstream_id"msg_013uyjimwUucZhCSq98iWBrf"
total_cost0.027815
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
words503
0.00% Dialogue to Total Word Ratio
Ratio: 80.00%, Deviation: 30.00%
neededCleanfalse
wordsTotal505
wordsDialogue404
49.9595%