Run: 2026-07-25-01KYCRB7RJVWYWQM2VRKNE17H5

Run Details

Duration:
14.0s
Cost:
$0.019915
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
95.99% Matches word count (details)
99.96% Dialogue to Total Word Ratio (details)
97.9748% 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 flattened the flyer across the van's hood, smoothing it with the reverence other people reserved for treasure maps. *Tobias Perkins, Age 7, Pirate Party, 2 P.M., No Gifts Necessary.* An outrageous lie. There were always gifts. Suburban grandmothers could not be stopped; they arrived like weather, arms loaded with wrapped rectangles and gift receipts, and by three o'clock the sunroom would be a glittering mountain of untouched merchandise. Bill emerged from the back of the van in full clown regalia, wig askew, one enormous shoe already flapping loose at the toe. "Nobody suspects a clown," he said. Molly studied him the way a surgeon studies an infection. The plan was elegant. Bill would enter through the front, honk, juggle badly, and herd every child into the backyard for balloon animals. Molly, meanwhile, would slip through the side gate with two laundry sacks and clear the sunroom in under ninety seconds. The bouncy castle would drown out any noise. Parents would be filming. Nobody films the presents. "You're allergic to balloons," she reminded him. "Then I'll hold my breath." She handed him a whistle, a bag of streamers, and an EpiPen, which he tucked into his polka-dotted sleeve. "Presents first," Molly said. "Cake second." Bill nodded solemnly. "Deal."
created_at"2026-07-25T13:44:58.905Z" 7/25/2026, 1:44:58 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4171
moderation_latency(null)
generation_time13905
tokens_prompt75
tokens_completion410
native_tokens_prompt93
native_tokens_completion778
native_tokens_completion_images(null)
native_tokens_reasoning82
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"
usage0.019915
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsnf6J1DxhQWE7tShHs"
is_byokfalse
latency1236
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-1784987098-mwhy0hI3ufnTDdfGl6KD"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987098-yHDC4jQ7XXrhY8wk1NKi"
upstream_id"msg_011CdNsnf6J1DxhQWE7tShHs"
total_cost0.019915
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
95.99% Matches word count n/a
neededCleanfalse
words208
99.96% Dialogue to Total Word Ratio
Ratio: 8.61%, Deviation: 1.39%
neededCleanfalse
wordsTotal209
wordsDialogue18
97.9748%