Run: 2026-09-29-01M3P2JEAC0BT2PAEZ3T8EY7ZN

Run Details

Duration:
21.5s
Cost:
$0.029900
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
77.86% Dialogue to Total Word Ratio (details)
88.9205% 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 hydrangeas, binoculars trained on the Hendersons' backyard, where forty-seven children shrieked around a bouncy castle shaped like a unicorn. Beside her, Bill wore a balloon-animal hat he insisted was "tactical camouflage." The presents sat on a folding table under a banner reading HAPPY 6TH BIRTHDAY, CHESTER. Guarding them was a grandmother armed with a juice box and a terrifying stare. "Grandma's the problem," Molly whispered. "Distract her, and I'll take the gifts." Bill nodded, hat squeaking. "I know a clown." Molly closed her eyes. Twenty years of safecracking, museum infiltrations, and one incident involving a llama, and here she was, ruining a stranger's birthday. Chester had received three separate Lego sets from relatives who lacked imagination, and someone had to redistribute the wealth. Bill crawled toward the clown, who was smoking behind the garage. Molly watched him negotiate in hand gestures. Moments later the clown marched toward the grandmother, honking a horn, and began a magic trick involving scarves. Molly slid from the hydrangeas, pillowcase open like a hungry mouth. She swept up gifts, glitter dusting her sleeves. Then the unicorn castle deflated, and forty-seven children turned to stare at her. "Surprise! Happy birthday, Chester?" she said weakly.
created_at"2026-09-29T07:55:19.763Z" 9/29/2026, 7:55:19 AM
model"anthropic/claude-sonnet-5.5-20260928"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3442
moderation_latency(null)
generation_time21451
tokens_prompt75
tokens_completion708
native_tokens_prompt95
native_tokens_completion2971
native_tokens_completion_images(null)
native_tokens_reasoning2473
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"
usage0.0299
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
http_referer(null)
request_id"req-1790668519-A8XDR4N2HFxj88exP70j"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790668519-cDD5jaesNShV1pCGKKL0"
upstream_id"msg_011CfXNWd7PJXdhaz1j1Ntt3"
provider_responses
0
endpoint_id"99aaad94-923b-4fc1-b763-271ed5486f7a"
id"msg_011CfXNWd7PJXdhaz1j1Ntt3"
is_byokfalse
latency705
model_permaslug"anthropic/claude-sonnet-5.5-20260928"
provider_name"Claude Platform on AWS"
status200
total_cost0.0299
cache_discount(null)
upstream_inference_cost0
provider_name"Claude Platform on AWS"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words202
77.86% Dialogue to Total Word Ratio
Ratio: 17.07%, Deviation: 7.07%
neededCleanfalse
wordsTotal205
wordsDialogue35
88.9205%