Run: 2026-05-29-01KSSJTZDGKQ8KQS0E6BJZWYC6

Run Details

Duration:
10.9s
Cost:
$0.015515
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
83.01% Dialogue to Total Word Ratio (details)
91.5063% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 crouched behind the hedge, binoculars trained on the bouncy castle wobbling in the suburban backyard. Crepe-paper streamers sagged between the gutters, and a sad clown twisted balloons into shapes that resembled neither animals nor dignity. The present table, however, gleamed like treasure in a pirate's fevered dream: stacks of glittering boxes, ribbons curling invitingly. Bill adjusted his stolen party hat, the elastic biting cruelly into his stubbled chin. He'd insisted the disguise was foolproof, though he stood a full head taller than every parent present and smelled faintly of cigarettes and regret. "The cake's our distraction," Molly whispered, sketching a diagram in the dirt with a twig. He nodded solemnly, studying the crude map as though it contained the secrets of the universe. Their plan hinged on chaos—specifically, the chaos generated by twelve sugar-addled seven-year-olds released simultaneously toward a piñata. Molly outlined the extraction route: snatch the gifts during the candle-blowing, exit through the gate, vanish into the minivan idling out front. Simple. Elegant. Beneath them, certainly, but rent was rent. Bill cracked his knuckles, eyeing a particularly enormous box wrapped in dinosaur paper. "That one's mine," he murmured greedily. Somewhere inside, a child began wailing. Showtime.
created_at"2026-05-29T10:00:21.689Z" 5/29/2026, 10:00:21 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3751
moderation_latency(null)
generation_time10868
tokens_prompt77
tokens_completion401
native_tokens_prompt93
native_tokens_completion602
native_tokens_completion_images(null)
native_tokens_reasoning54
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"
usage0.015515
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01TNtg8aSzReBvbXC15fnzXd"
is_byokfalse
latency1601
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-1780048821-ac1VeMH8EKNPpVedQgpT"
session_id(null)
api_type"completions"
id"gen-1780048821-zONxtt6Re7QxPXU59nUt"
upstream_id"msg_01TNtg8aSzReBvbXC15fnzXd"
total_cost0.015515
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words199
83.01% Dialogue to Total Word Ratio
Ratio: 3.43%, Deviation: 6.57%
neededCleanfalse
wordsTotal204
wordsDialogue7
91.5063%