Run: 2026-06-01-01KT1HNWKEP88WDA7291283WRR

Run Details

Duration:
10.5s
Cost:
$0.012765
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
78.33% Dialogue to Total Word Ratio (details)
89.1585% 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?" Molly asked. "Robbing a kid's birthday party?" "Not robbing. Liberating," Bill said. "Those presents are practically begging to be stolen." "From a six-year-old." "From a *spoiled* six-year-old. Did you see the invitation? 'Bouncy castle, pony rides, and a chocolate fountain.' That's excessive." "And our plan is?" "You distract everyone as the clown." "Absolutely not." "Molly, you're a natural. The big shoes, the red nose—" "I'm not wearing the nose." "Fine. No nose. But you've got to juggle something." "I can't juggle." "Then throw the things and catch them dramatically. Nobody at a kid's party expects competence." "And what'll you be doing while I'm humiliating myself?" "Loading the loot into the van. We hit the present table, grab everything, and we're gone before they sing 'Happy Birthday.'" "This is the worst plan you've ever had." "It's foolproof! Who suspects a clown?" "Everyone. Everyone suspects the clown." "Look, the kid's got two hundred guests. That's two hundred presents. We could retire." "On secondhand action figures and gift cards?" "There's always cash in those little envelopes." Molly sighed. "If I get hit with a piñata stick, I'm leaving you behind." "Deal. Now put on the shoes."
created_at"2026-06-01T12:14:01.845Z" 6/1/2026, 12:14:01 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2015
moderation_latency(null)
generation_time10440
tokens_prompt77
tokens_completion350
native_tokens_prompt93
native_tokens_completion492
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"
usage0.012765
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01CPYphPtiMmJwzTF6H9ewMp"
is_byokfalse
latency2014
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-1780316041-g1vev96HsHBTgoSMQLnd"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780316041-S3bUxRFriPUGyd0y84Tt"
upstream_id"msg_01CPYphPtiMmJwzTF6H9ewMp"
total_cost0.012765
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
78.33% Dialogue to Total Word Ratio
Ratio: 97.03%, Deviation: 7.03%
neededCleanfalse
wordsTotal202
wordsDialogue196
89.1585%