Run: 2026-07-25-01KYCRE8QPFXYKZZ98PDAHR3R6

Run Details

Duration:
10.2s
Cost:
$0.012840
Provider:
Amazon Bedrock

Evaluation summary

Score Evaluator
Details Link
97.63% Matches word count (details)
99.88% Dialogue to Total Word Ratio (details)
98.7532% 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 had drawn the layout on the back of a grease-stained napkin: the bouncy castle, the piñata, the folding table sagging beneath a mountain of glittering wrapped boxes. She circled the table three times with her pen, hard enough to tear through, then slid the napkin across the diner booth to Bill, who was busy excavating a molar with a coffee stirrer. The party started at two. Nineteen guests, all of them under the age of eight, all of them hopped up on frosting and fruit punch, which meant chaos, which meant cover. There would be one adult on presents duty — an aunt, Molly's intelligence suggested, the sort of aunt who drinks white wine from a plastic cup and loses track of things. There would be a magician arriving at two-thirty. The magician was the window. Bill studied the napkin with the gravity of a general. He tapped the bouncy castle twice. "We go in dressed as clowns," he said. Molly closed her eyes. She had known him eleven years and he had never once been reasonable. "No clowns," she said. "Balloon animals. Nobody suspects a man twisting a giraffe." Bill considered this, nodded slowly, and ordered pie, which he always did before a job, for luck.
created_at"2026-07-25T13:46:38.209Z" 7/25/2026, 1:46:38 PM
model"anthropic/claude-opus-5-20260723"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3614
moderation_latency(null)
generation_time10056
tokens_prompt75
tokens_completion345
native_tokens_prompt93
native_tokens_completion495
native_tokens_completion_images(null)
native_tokens_reasoning44
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"
usage0.01284
router(null)
provider_responses
0
endpoint_id"76cb4608-f48c-483d-8da8-9957fb44244e"
id"msg_011CdNsuyhvMYRMD9zaJwPNA"
is_byokfalse
latency1245
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-1784987198-e95sVzj97qOoEJUgO3br"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1784987198-NuhDSdRedioxId7CLyaa"
upstream_id"msg_011CdNsuyhvMYRMD9zaJwPNA"
total_cost0.01284
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
97.63% Matches word count n/a
neededCleanfalse
words207
99.88% Dialogue to Total Word Ratio
Ratio: 8.13%, Deviation: 1.87%
neededCleanfalse
wordsTotal209
wordsDialogue17
98.7532%