Run: 2026-07-25-01KYCQR4C8XQTCGE00CWR6H5T4

Run Details

Duration:
22.8s
Cost:
$0.031115
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
90.48% Matches word count (details)
98.53% Dialogue to Total Word Ratio (details)
94.5055% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 500 word scene that has 30% 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
The van smelled of stale liquorice and ambition. Molly had spread the blueprints across the dashboard — technically not blueprints, technically a leaflet for Wobbles the Clown's Deluxe Fun Package, but she'd drawn arrows on it in red biro and that made it strategy. Bill was eating a sausage roll with the reverence of a man attending his own christening. Flakes of pastry settled into the folds of his stolen fleece, which read STAFF in cheerful yellow letters, and which he had not once removed since acquiring it in 2019. "Present table's here," Molly said, tapping a jam-coloured smudge. "Beside the bouncy castle. Forty-two guests, average gift value eleven quid, plus whatever the grandparents cough up." "Grandparents give money." "Grandparents give *cash*, Bill. Which is the finest gift of all, and one we shall be honouring." He nodded, chewing. Somewhere behind his eyes, a small abacus was clacking. Beyond the windscreen, number fourteen Marlowe Crescent was hemorrhaging balloons. A woman in a linen jumpsuit was zip-tying bunting to a lamppost with the grim efficiency of someone who had been awake since four. Children were arriving in shoals, each clutching a rectangle of wrapping paper, each rectangle representing — in Molly's calculations — approximately four pounds sixty after fencing. "There's a moral dimension here," Bill said. "There is not." "There's a *bit* of one." Molly turned to face him fully, which in the confines of a Vauxhall Combo was a considerable manoeuvre. She let the silence do most of the work, the way her mother had. "Last April," she said, "you took a charity tin off a bar in Streatham. It was shaped like a dog." "It was shaped like a *cat*, and I've made peace with that." "So we're peaceful. Good." She smoothed the leaflet. "Fourteen minutes. That's the window. Wobbles does his balloon-animal segment at half two, and every adult in that garden will be filming a poodle being twisted into existence. Nobody films a present table. Nobody has *ever* filmed a present table." Bill considered this and found it philosophically sound, even beautiful. He wiped his hands on his knees. The plan, such as it was, involved two wheelie bins, a laundry hamper, and Bill's unshakeable belief that a man in a STAFF fleece could walk into any building in Britain and be offered a cup of tea. Molly's role was to hover near the trestle table with a bin bag and the expression of a woman conscientiously tidying up, an expression she had practised in the bathroom mirror for eleven minutes that morning and now believed to be her best work. "And if someone asks?" "We're from the hire company. Collecting the gift receptacles." "That's not a thing." "It's a thing if you say it flatly enough." He looked out at the balloons, at the bunting, at the terrible innocence of it all, and felt something shift pleasantly into place, the way a key does. "Fourteen minutes," he said. Molly folded the leaflet into her sleeve, and they got out of the van as though the day belonged to them.
created_at"2026-07-25T13:34:32.848Z" 7/25/2026, 1:34:32 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4531
moderation_latency(null)
generation_time22742
tokens_prompt75
tokens_completion855
native_tokens_prompt93
native_tokens_completion1226
native_tokens_completion_images(null)
native_tokens_reasoning81
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"
usage0.031115
router(null)
provider_responses
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endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNrzXUNbZd7XQV6o6DbZ"
is_byokfalse
latency1478
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-1784986472-NOuVcSOOqpRHQ5zXUOa5"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784986472-vKZVQpzZdzqBJdVNWJZF"
upstream_id"msg_011CdNrzXUNbZd7XQV6o6DbZ"
total_cost0.031115
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
90.48% Matches word count n/a
neededCleanfalse
words510
98.53% Dialogue to Total Word Ratio
Ratio: 30.54%, Deviation: 0.54%
neededCleanfalse
wordsTotal514
wordsDialogue157
94.5055%