Run: 2026-05-29-01KSSJJVHWBGTCEJRMAFVDD5XW

Run Details

Duration:
10.4s
Cost:
$0.012640
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 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 blueprint across the table, smoothing out a crease that suspiciously resembled a ketchup stain. "The bouncy castle is our weak point," she said, tapping the paper. "Security's gonna be tight." Bill leaned in, squinting. "Security? It's a six-year-old's birthday party, Molly." "Don't underestimate them. My nephew once bit a clown so hard the guy needed stitches." "And what exactly are we stealing again?" Molly grinned. "Presents. All of them. Wrapped, ribboned, and ours." "You want to rob children." Bill rubbed his temples. "We've hit banks, casinos, an art museum—and now we're swiping toys from toddlers?" "Think bigger. You know what kids get these days? Tablets. Gaming consoles. Designer sneakers in tiny sizes." Bill paused, intrigued despite himself. "How tiny are we talking?" "Resale value's still solid," she insisted. "Now, you'll dress as the magician." "Absolutely not." "You'll wear the top hat, you'll pull a rabbit, you'll distract the parents." Bill crossed his arms. "And where will you be?" "Sneaking out the back with a garbage bag full of loot, obviously." He sighed, defeated. "This is a new low, even for us." Molly slapped his shoulder cheerfully. "Bill, every great career needs a piñata."
created_at"2026-05-29T09:55:55.591Z" 5/29/2026, 9:55:55 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1422
moderation_latency123
generation_time10202
tokens_prompt77
tokens_completion337
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
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endpoint_id"dfc0e5bd-d703-4fe2-a7bb-655eb95d5441"
id"msg_01DduzRU2gTv8zWgaJpmaNmS"
is_byokfalse
latency1422
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-1780048555-zgZz1HMVYrgWOFqPXuNs"
session_id(null)
api_type"completions"
id"gen-1780048555-jE2qe9OWh6SzFK49g9bQ"
upstream_id"msg_01DduzRU2gTv8zWgaJpmaNmS"
total_cost0.01264
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
words197
0.00% Dialogue to Total Word Ratio
Ratio: 74.37%, Deviation: 24.37%
neededCleanfalse
wordsTotal199
wordsDialogue148
49.9595%