Run: 2026-05-31-01KSYXR4AT6Z9W6K53HACFRM0B

Run Details

Duration:
10.8s
Cost:
$0.014640
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
91.39% Dialogue to Total Word Ratio (details)
95.6956% 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 crouched behind the hydrangea bush, binoculars trained on the backyard where a dozen balloons bobbed against a banner reading HAPPY 7TH BIRTHDAY TIMMY. Beside her, Bill struggled to fit his enormous frame behind a garden gnome that concealed roughly four percent of his torso. The present table glittered in the afternoon sun, a mountain of wrapping paper and ribbon stacked precariously beside the bouncy castle. Molly's pulse quickened. Thirty years of armed robberies, casino jobs, and one regrettable submarine incident had led to this, the heist of a lifetime. "That clown is the security," Molly whispered, gesturing toward a man twisting balloon animals with suspicious efficiency. Bill nodded gravely, adjusting his ski mask, which clashed terribly with his Hawaiian shirt. He'd insisted on the disguise. He'd also insisted on the shirt. They watched a child sprint past, juice box in hand, weaponized sugar coursing through tiny veins. The enemy was small, sticky, and unpredictable. "Wait for the piƱata," Bill murmured. The plan was elegant. During the chaos of swinging bats and scrambling toddlers, they would extract the loot through the side gate, load the getaway minivan, and vanish. Molly grinned. Somewhere, a parent lit seven candles, utterly unaware.
created_at"2026-05-31T11:47:14.919Z" 5/31/2026, 11:47:14 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2773
moderation_latency(null)
generation_time10759
tokens_prompt77
tokens_completion381
native_tokens_prompt93
native_tokens_completion567
native_tokens_completion_images(null)
native_tokens_reasoning48
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"
usage0.01464
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01VuciFt5MgLfSrAuXhUrJpC"
is_byokfalse
latency1195
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-1780228034-dM5CPjb4wXDXoakHP7t7"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780228034-XcdIeFlQpYVsTaPebDOM"
upstream_id"msg_01VuciFt5MgLfSrAuXhUrJpC"
total_cost0.01464
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
91.39% Dialogue to Total Word Ratio
Ratio: 4.52%, Deviation: 5.48%
neededCleanfalse
wordsTotal199
wordsDialogue9
95.6956%