Run: 2026-06-01-01KT1JA296YE3QVYGZV0JN9YFM

Run Details

Duration:
9.8s
Cost:
$0.012990
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
86.38% Matches word count (details)
67.96% Dialogue to Total Word Ratio (details)
77.1693% 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 doing this," Molly said. "Stealing presents. From children." "From a child. Singular. One spoiled birthday boy." "How do we get in?" "Clown costumes. Nobody questions clowns." "I hate clowns." "Everyone hates clowns, Bill. That's the genius. They won't look at us." "What about the parents?" "Distracted. Cake, juice boxes, existential despair. We slip in, grab the pile, slip out." "And the kids?" "What about them?" "They'll cry." "Children cry constantly. It's their natural state." "This feels wrong, Molly." "You robbed a retirement home last spring." "That was different. They were asleep." "You stole from sleeping seniors but won't rob a party?" "Seniors don't believe in magic anymore. Kids do." "Oh, here we go." "I'm just saying, there's an innocence—" "There's an Xbox, Bill. Three of them, probably. Plus cash in birthday cards." "How much cash?" "Now you're interested." "I'm asking questions." "Grandparents give twenties. There'll be a dozen cards minimum." "So roughly—" "Two hundred, easy. Plus electronics." "Fine. But I'm not making balloon animals." "You'll make balloon animals if a child asks." "I don't know how!" "Then learn, Bill. We're professionals."
created_at"2026-06-01T12:25:03.022Z" 6/1/2026, 12:25:03 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1479
moderation_latency(null)
generation_time9744
tokens_prompt77
tokens_completion363
native_tokens_prompt93
native_tokens_completion501
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"
usage0.01299
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01B9dKYCwSj135tLZjqPBkWW"
is_byokfalse
latency1479
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-1780316703-Wol2xYPtIeqSrmoplqGv"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780316703-cCMlrWd7PEJ0MlSaQQA5"
upstream_id"msg_01B9dKYCwSj135tLZjqPBkWW"
total_cost0.01299
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
86.38% Matches word count n/a
neededCleanfalse
words189
67.96% Dialogue to Total Word Ratio
Ratio: 97.88%, Deviation: 7.88%
neededCleanfalse
wordsTotal189
wordsDialogue185
77.1693%