Run: 2026-05-29-01KSSKD625H1MAQMVZXB1Q22HQ

Run Details

Duration:
11.7s
Cost:
$0.012040
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
93.65% Matches word count (details)
65.21% Dialogue to Total Word Ratio (details)
79.4309% 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 said. "We're really doing this," Molly confirmed. "Robbing a child." "Robbing *multiple* children, technically." "Right. The classy option." "Look, do you want to eat this month or not?" "I want to keep my dignity." "Your dignity bounced a check last Tuesday, Bill." "That's fair. So what's the plan?" "You go in dressed as the clown. I come in as the magician." "Why do you get magician? Magicians are cool." "Because you have a face people instinctively trust on a clown." "That's the meanest compliment I've ever received." "Take it. Now, the presents are stacked by the gift table. You distract the kids with balloon animals—" "I don't know how to make balloon animals." "Then make balloon *blobs*. Kids are stupid, they'll love it." "And what do you do?" "I 'magically' make the presents disappear into a duffel bag." "That's not magic, that's just theft with extra steps." "All magic is theft with extra steps, Bill." "That's weirdly profound." "I read a book once." "What if a parent catches us?" "Then you honk your little horn and we run." "I don't have a little horn." "Buy a little horn, Bill." "Fine. But I want it noted I have concerns." "Noted. Now grab the balloons."
created_at"2026-05-29T10:10:18.32Z" 5/29/2026, 10:10:18 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3080
moderation_latency(null)
generation_time11623
tokens_prompt77
tokens_completion353
native_tokens_prompt93
native_tokens_completion463
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"
usage0.01204
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01DtJL76i16RNpb3HYj4FDJ7"
is_byokfalse
latency3080
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-1780049418-FY7j2MRos6KM6wXApfHw"
session_id(null)
api_type"completions"
id"gen-1780049418-PJ1sFkuReiaoyGqRLtXW"
upstream_id"msg_01DtJL76i16RNpb3HYj4FDJ7"
total_cost0.01204
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
93.65% Matches word count n/a
neededCleanfalse
words209
65.21% Dialogue to Total Word Ratio
Ratio: 98.09%, Deviation: 8.09%
neededCleanfalse
wordsTotal209
wordsDialogue205
79.4309%