Run: 2026-09-23-01M37PMD7NYD2FCBGNDYQX07BW

Run Details

Duration:
23.9s
Cost:
$0.044980
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
91.72% Dialogue to Total Word Ratio (details)
95.8576% 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 spread the blueprints across the hood of the van, pinning one corner with a juice box and the other with Bill's elbow. The blueprints were a crayon drawing she had lifted from the Hendersons' refrigerator, but the kid had a surprising grasp of perspective. "Bouncy castle's our entry point. Nobody suspects the bouncy castle," she said. Bill studied the drawing with the intensity of a man defusing a bomb. He had once spent six years planning a museum job and still gotten stuck in a revolving door. Tonight, the stakes were higher. Tonight, there would be a clown. "What about the clown?" he asked. Molly produced a photo of Mister Giggles, circled three times in marker. Word on the street said he'd done time. Word on the street also said he could make a balloon giraffe in under four seconds, which Molly found more concerning. Bill would pose as a late-arriving uncle. Molly would handle the piƱata as a diversion. The presents, stacked like a glittering fortress beside the cake table, would vanish into a laundry cart before anyone finished the second verse of the birthday song. Bill nodded, then raised a hand. "Do we at least get cake?"
created_at"2026-09-23T17:57:19.238Z" 9/23/2026, 5:57:19 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5465
moderation_latency(null)
generation_time23811
tokens_prompt75
tokens_completion585
native_tokens_prompt95
native_tokens_completion2230
native_tokens_completion_images(null)
native_tokens_reasoning1829
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"
usage0.04498
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186239-37FFuXROjAvNZMKZAuik"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186239-BcgL6xndBkch7nmhAolr"
upstream_id"msg_011CfLoZeskd9NpGZHZsCvtG"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLoZeskd9NpGZHZsCvtG"
is_byokfalse
latency1203
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.04498
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
100.00% Matches word count n/a
neededCleanfalse
words200
91.72% Dialogue to Total Word Ratio
Ratio: 15.42%, Deviation: 5.42%
neededCleanfalse
wordsTotal201
wordsDialogue31
95.8576%