Run: 2026-06-01-01KT1G469YN7ZRM0Q2P9HH8PEG

Run Details

Duration:
10.8s
Cost:
$0.015515
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.38% Matches word count (details)
77.39% Dialogue to Total Word Ratio (details)
88.3829% 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 hydrangeas, binoculars trained on the bouncy castle wobbling in the suburban backyard. Beside her, Bill struggled to squeeze his considerable frame into a clown costume two sizes too small, the seams whimpering with every breath. The plan, she reminded herself, was elegant in its simplicity. Slip in among the parents, blend into the chaos of frosting and screaming six-year-olds, and liberate the towering pyramid of wrapped gifts before anyone noticed. "Remember the signal," Molly whispered. Bill nodded, honking his nose accidentally. The signal, of course, was supposed to be a discreet tug of the ear, not the catastrophic horn now echoing across the lawn. A pack of children turned toward the bushes like tiny bloodhounds sensing weakness. Molly cursed under her breath, recalculating. Forty presents, maybe fifty, glittering and unguarded, surrounded by an army of sugar-crazed toddlers and one suspiciously alert golden retriever. She'd robbed banks. She'd cracked vaults in Monaco. None of it had prepared her for the horror of a piƱata swinging directly toward Bill's exposed forehead. "This is humiliating," Bill grumbled. Molly tightened her grip on the duffel bag, took a steadying breath, and decided that dignity, much like the presents, was simply another thing worth abandoning today.
created_at"2026-06-01T11:46:53.381Z" 6/1/2026, 11:46:53 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3301
moderation_latency(null)
generation_time10785
tokens_prompt77
tokens_completion401
native_tokens_prompt93
native_tokens_completion602
native_tokens_completion_images(null)
native_tokens_reasoning57
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_0124NftMsYuP6iCNXghW7rKo"
is_byokfalse
latency1105
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-1780314413-Ixh1OTuHBdpQOicbqvTm"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314413-MzRRuWPWOVyGNA0Pecaw"
upstream_id"msg_0124NftMsYuP6iCNXghW7rKo"
total_cost0.015515
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.38% Matches word count n/a
neededCleanfalse
words205
77.39% Dialogue to Total Word Ratio
Ratio: 2.88%, Deviation: 7.12%
neededCleanfalse
wordsTotal208
wordsDialogue6
88.3829%