Run: 2026-05-31-01KSYXJK8HKJ7ZHP0TDRP7DN12

Run Details

Duration:
10.1s
Cost:
$0.011990
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9995% 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 unfolded the blueprints across the hood of their rusty van, smoothing the wrinkled paper with both hands. "The bouncy castle is our blind spot," she said, tapping the diagram. "Nobody watches the perimeter when there's a bouncy castle." Bill squinted at the crayon-drawn map. "Did you steal these from a six-year-old?" "Borrowed them. From a six-year-old." He sighed, adjusting his clown costume. "Remind me why I'm dressed like this?" "Because clowns are invisible at parties," Molly explained. "You'll blend right in while I distract the parents with my magic act." "You don't know magic." "I know enough to make presents disappear." She grinned, sliding into her sequined cape. "That's all the magic we need, Bill." "And if the kids notice their gifts vanishing?" "Children have terrible memories. By cake time, they won't remember a thing." Bill honked his red nose nervously. "I've got a bad feeling about this." "You said that about the bank job." "We got arrested during the bank job!" Molly waved him off, gathering her props. "Minor setback. This time it's foolproof. Who suspects a magician and a clown?" "Everyone, Molly. Literally everyone suspects clowns." She paused, considering this. "Fair point. Grab the balloons anyway."
created_at"2026-05-31T11:44:13.599Z" 5/31/2026, 11:44:13 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1414
moderation_latency(null)
generation_time10080
tokens_prompt77
tokens_completion338
native_tokens_prompt93
native_tokens_completion461
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"
usage0.01199
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01D1imJL9pFQi9RRKnrPMYoV"
is_byokfalse
latency1414
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-1780227853-V3rkB92y7R6UJx3yMep6"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227853-ecifqKcj1aRG6Vm66UJZ"
upstream_id"msg_01D1imJL9pFQi9RRKnrPMYoV"
total_cost0.01199
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words199
0.00% Dialogue to Total Word Ratio
Ratio: 69.61%, Deviation: 19.61%
neededCleanfalse
wordsTotal204
wordsDialogue142
49.9995%