Run: 2026-06-01-01KT1GKD1X428M56STQSEQNG9P

Run Details

Duration:
10.4s
Cost:
$0.012865
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.92% Matches word count (details)
93.47% Dialogue to Total Word Ratio (details)
96.6937% 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. "Robbing a kid's birthday party?" "Not a kid's party," Molly said. "A rich kid's party. Different thing entirely." "How's it different?" "The presents are nicer." "Molly, there'll be parents. Clowns. Witnesses under four feet tall." "Children can't testify. Everybody knows that." "That's not—where did you even hear that?" "Same place you heard we couldn't get caught last time." "We did get caught last time." "And yet here we are, free as birds. So my information's solid." Bill rubbed his temples. "What's the plan, then?" "You distract everyone. Balloon animals." "I can't make balloon animals." "Then make balloon shapes. Nobody's grading you." "And you?" "I sneak in, grab the gift table, and we vanish before they cut the cake." "You're skipping the cake?" "Bill, we're committing a felony. We're not staying for cake." "There's always time for cake." "Fine. We grab a slice on the way out. Happy?" "Ecstatic. What if a kid sees us?" "We say we're the entertainment." "Dressed in ski masks?" Molly paused. "Ninja-themed party. We commit to the bit." "This is the worst plan you've ever had." "Worse than the aquarium?" "...Marginally better than the aquarium." "Then we're golden. Grab your balloons."
created_at"2026-06-01T11:55:11.81Z" 6/1/2026, 11:55:11 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1368
moderation_latency184
generation_time10181
tokens_prompt77
tokens_completion361
native_tokens_prompt93
native_tokens_completion496
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"
usage0.012865
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_011nPZSZ5uXEJYDVdDxJyeQj"
is_byokfalse
latency1076
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-1780314911-f8PTJOd6IjpnWSHKNKGm"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314911-C0CVGBbrOoZu7U8oJIX4"
upstream_id"msg_011nPZSZ5uXEJYDVdDxJyeQj"
total_cost0.012865
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
words203
93.47% Dialogue to Total Word Ratio
Ratio: 95.10%, Deviation: 5.10%
neededCleanfalse
wordsTotal204
wordsDialogue194
96.6937%