Run: 2026-05-31-01KSYXHJ8NFY9Q8AFZ2BHVP1KE

Run Details

Duration:
10.3s
Cost:
$0.012640
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9995% 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. "The target is a bouncy castle, Bill. Pure tactical nightmare." "I don't like clowns," Bill muttered, polishing his crowbar. "They've got dead eyes." "Focus. The presents are stacked here, by the cake. We grab them during pin the tail on the donkey." Bill frowned. "What about the parents?" "Distracted. Drinking boxed wine, pretending they're not exhausted." She tapped the map. "We blend in. You're Uncle Gary, I'm a magician they double-booked." "I can't do magic, Molly." "Pull a coin from a kid's ear. They're easily impressed." Bill considered this. "What if someone wants a balloon animal?" "Then you make a balloon animal, Bill!" "I'll make a snake," he said proudly. "It's just a long balloon you don't twist." Molly pinched the bridge of her nose. "Fine. The snake works. After the cake, we load the loot into the van marked 'Petting Zoo.'" "There's no actual animals?" "There's no actual zoo, Bill. It's a disguise." He looked genuinely disappointed. "I really wanted to pet something." "You can pet your share of the profits." She rolled up the map. "Now repeat the plan." Bill grinned. "Coin trick, snake balloon, steal birthday joy from children." "Beautiful."
created_at"2026-05-31T11:43:39.809Z" 5/31/2026, 11:43:39 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency986
moderation_latency(null)
generation_time10296
tokens_prompt77
tokens_completion335
native_tokens_prompt93
native_tokens_completion487
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"
usage0.01264
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01SvqeAn5mAqCnndX6hSsMLx"
is_byokfalse
latency986
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-1780227819-5KHz2CjMjT230q7xCkhb"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227819-FA9CrzKFKUX4Lk4qOz35"
upstream_id"msg_01SvqeAn5mAqCnndX6hSsMLx"
total_cost0.01264
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
words201
0.00% Dialogue to Total Word Ratio
Ratio: 78.33%, Deviation: 28.33%
neededCleanfalse
wordsTotal203
wordsDialogue159
49.9995%