Run: 2026-05-31-01KSYXH84ZWFACQFN68FPAMS9Y

Run Details

Duration:
8.5s
Cost:
$0.012815
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
98.71% Matches word count (details)
99.34% Dialogue to Total Word Ratio (details)
99.0241% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% 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
"So we're really doing this?" Bill asked. "We're really doing this," Molly said. "Robbing a six-year-old." "Robbing a *birthday party*. There's a difference." "What's the difference?" "Volume," Molly said. "One kid, sure, that's sad. But thirty kids? Each bringing a wrapped gift? That's inventory." "And the cake?" "We're not stealing the cake, Bill." "I might steal a slice." "That's not professional." "Neither is robbing a clown." "There's a clown?" "There's always a clown," Bill said. "Name's Giggles. He's connected." "Connected to what?" "Other clowns. It's a whole network." "You're afraid of a clown." "I'm cautious around a clown." "Okay," Molly sighed. "Here's the plan. You go in dressed as a magician—" "Why do I have to be the magician?" "Because magicians carry big empty bags, Bill. It's the perfect cover." "Then what?" "You do a few tricks, distract the parents, and I sweep the gift table." "What if they want a real magic show?" "Then pull a rabbit out of a hat." "I don't have a rabbit." "Pull out *something*." "I'll pull out a present," Bill said. "Then I'll make it disappear." Molly smiled. "Now *that's* professional." "What about Giggles?" "We'll deal with Giggles."
created_at"2026-05-31T11:43:29.458Z" 5/31/2026, 11:43:29 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1023
moderation_latency(null)
generation_time8493
tokens_prompt77
tokens_completion350
native_tokens_prompt93
native_tokens_completion494
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"
usage0.012815
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01A2KW4agmw4dpcHMLkYZxJY"
is_byokfalse
latency1020
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-1780227809-Yo7nOSUEV7lMt7qMMrNl"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227809-HHf6AsJzDMNLsjFPkIRe"
upstream_id"msg_01A2KW4agmw4dpcHMLkYZxJY"
total_cost0.012815
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
98.71% Matches word count n/a
neededCleanfalse
words194
99.34% Dialogue to Total Word Ratio
Ratio: 92.86%, Deviation: 2.86%
neededCleanfalse
wordsTotal196
wordsDialogue182
99.0241%