Run: 2026-05-29-01KSSK0QJAHED0P3JX2A4W2BKQ

Run Details

Duration:
9.6s
Cost:
$0.012890
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.74% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.8722% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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
Molly spread the blueprints across the table, knocking over a juice box. "Okay," she said, jabbing a finger at the diagram. "The party starts at two. We hit it during the piñata." Bill squinted. "Why the piñata?" "Because everyone's distracted, Bill. Blindfolds, swinging sticks, total chaos. Nobody's watching the gift table." "I don't know, Molly. These are kids' presents. Coloring books. Maybe a yo-yo." "It's a rich kid's party," she snapped. "Think tablets. Think gold-plated building blocks. Think bicycles, Bill." He scratched his chin. "What about the clown?" "What about him?" "Clowns are unpredictable. One time a clown chased me six blocks over a balloon animal." Molly stared at him. "That's your trauma talking. Focus. You distract the parents, I grab the loot, we're gone before the cake." "And if someone sees us?" "We're wearing party hats. We blend in." Bill brightened. "I do look fantastic in a party hat." "That's the spirit." She rolled up the blueprints. "Any questions?" "Just one." He leaned forward seriously. "Can I have a slice of cake before we leave?" Molly closed her eyes and exhaled slowly. "Fine. One slice." "And a goodie bag?" "Don't push it, Bill." He grinned, clutching his tiny party hat like a crown.
created_at"2026-05-29T10:03:30.262Z" 5/29/2026, 10:03:30 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency964
moderation_latency(null)
generation_time9577
tokens_prompt77
tokens_completion345
native_tokens_prompt93
native_tokens_completion497
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"
usage0.01289
router(null)
provider_responses
0
endpoint_id"dfc0e5bd-d703-4fe2-a7bb-655eb95d5441"
id"msg_01CcKLRZYwxWK1QpTrDHHcrf"
is_byokfalse
latency964
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-1780049010-6jSbJ3OcJMdTzCwfLtJ1"
session_id(null)
api_type"completions"
id"gen-1780049010-XMBuZwMyu9sRTXh9iMd2"
upstream_id"msg_01CcKLRZYwxWK1QpTrDHHcrf"
total_cost0.01289
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.74% Matches word count n/a
neededCleanfalse
words204
0.00% Dialogue to Total Word Ratio
Ratio: 70.87%, Deviation: 20.87%
neededCleanfalse
wordsTotal206
wordsDialogue146
49.8722%