Run: 2026-05-31-01KSYXJ0C8MXVWBJDKA02HCS4G

Run Details

Duration:
8.9s
Cost:
$0.011865
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 200 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 crayon-drawn map across the table, smoothing its wrinkled edges. "The objective is simple," she said. "We breach the perimeter during the piƱata distraction." Bill squinted at the diagram. "Why is the security guard wearing a clown nose?" "Because that's Bonkers the Clown, and he's the only thing standing between us and forty wrapped presents." "Forty?" Bill whistled. "What kind of kid gets forty presents?" "A spoiled one named Tyler whose father owns half the city." Molly tapped the map. "We go in through the bounce house." Bill leaned back, crossing his arms. "I don't do bounce houses. Last job, I sprained my dignity." "You'll bounce, and you'll like it." She slid him a juice box. "Hydrate. We're going to be there for hours." "What's our exit strategy?" "The ice cream truck. I bribed the driver with a kidney." Bill choked. "Whose kidney?" "Does it matter? Focus, Bill." She pointed at a stick figure. "This is the birthday boy. Avoid eye contact. Children sense fear." "And if someone asks who we are?" Molly grinned, pulling out two party hats. "We're entertainers. Now put this on and practice your balloon animals." Bill groaned. "I hate this job."
created_at"2026-05-31T11:43:54.26Z" 5/31/2026, 11:43:54 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1185
moderation_latency(null)
generation_time8852
tokens_prompt77
tokens_completion321
native_tokens_prompt93
native_tokens_completion456
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"
usage0.011865
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01XX3cyqMNaZNJmaawEZhPnK"
is_byokfalse
latency1185
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-1780227834-EMvgPe3ZQLEzVo3Jx6bH"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227834-AiEfLOCEnu1guI1kmq1l"
upstream_id"msg_01XX3cyqMNaZNJmaawEZhPnK"
total_cost0.011865
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
words198
0.00% Dialogue to Total Word Ratio
Ratio: 72.36%, Deviation: 22.36%
neededCleanfalse
wordsTotal199
wordsDialogue144
49.9920%