Run: 2026-07-25-01KYCPNY5YD5WJFQT3NFSM5Q04

Run Details

Duration:
9.8s
Cost:
$0.011515
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
75.16% Matches word count (details)
98.48% Dialogue to Total Word Ratio (details)
86.8173% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 10% 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 blueprint across the hood of the van, smoothing it with the flat of her palm. It was not, strictly speaking, a blueprint. It was a birthday invitation with a bouncy castle drawn on the back in crayon. Bill leaned in, squinting through the fog of his own breath. The bouncy castle had been rendered by a seven-year-old with limited spatial awareness, so it appeared to be floating above the garden shed, possibly on fire. "That's the perimeter," Molly said. He nodded slowly, the way a man nods when he has understood nothing but resents being told twice. The plan, as he grasped it, involved clowns. Somewhere in the middle there was a piƱata, and somewhere after that a wheelbarrow, and the wheelbarrow was where Bill came in, because Bill was strong and uncomplicated and could carry forty-six wrapped gifts across a lawn without asking questions about the moral architecture of the thing. Molly folded the invitation into her jacket. Beyond the hedge, a man in a rented tiger costume was inflating balloons with a bicycle pump and swearing softly at the sky. "Two o'clock," she said. "Cake time. Nobody watches the loot table during cake." Bill considered this. It was, he decided, the most beautiful sentence he had ever heard.
created_at"2026-07-25T13:15:52.387Z" 7/25/2026, 1:15:52 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1768
moderation_latency(null)
generation_time9681
tokens_prompt75
tokens_completion318
native_tokens_prompt93
native_tokens_completion442
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"
usage0.011515
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNqZv4rjJKHeJjaFgyFB"
is_byokfalse
latency1768
model_permaslug"anthropic/claude-opus-5-20260723"
provider_name"Amazon Bedrock"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1784985352-9ixG6x4ocmtAlDwKvzu2"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784985352-s27jEtZHUt0nD3CPqSA0"
upstream_id"msg_011CdNqZv4rjJKHeJjaFgyFB"
total_cost0.011515
cache_discount(null)
upstream_inference_cost0
provider_name"Amazon Bedrock"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
75.16% Matches word count n/a
neededCleanfalse
words213
98.48% Dialogue to Total Word Ratio
Ratio: 6.48%, Deviation: 3.52%
neededCleanfalse
wordsTotal216
wordsDialogue14
86.8173%