Run: 2026-09-23-01M37PPVEQT13C8FFYKQC559VH

Run Details

Duration:
23.4s
Cost:
$0.040040
Provider:
Claude Platform on AWS

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
99.22% Dialogue to Total Word Ratio (details)
99.6043% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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 unrolled the blueprint across the hood of the getaway van, which was really her mother's minivan with a sticker reading "Proud Grandma of an Honor Student." A juice box rolled off the dashboard in solidarity. "Timmy Pembrook turns seven at two o'clock," she said. "Fourteen presents, minimum. Sixteen if Aunt Carol feels guilty again." Bill squinted at the drawing. "Is this the house or a giraffe?" "It's the house. The neck is the driveway." He nodded, as though that settled it. Bill had once robbed a bank and left with only the complimentary pens, so Molly did not expect much. "So what's my job this time?" he asked. "You're the clown." "I hate clowns. They have too many pockets." "Children hate clowns too. That's why nobody will look at you directly. While they're screaming, I slip out the back with the gift table." "The whole table?" "It has wheels, Bill. I checked." Bill adjusted the rubber nose she'd handed him. It honked every time he breathed, which seemed like a design flaw for a stealth operation. "And if the birthday boy catches us?" Molly smiled and patted her bag. "Then we use the emergency bribe." "Cake?" "Better. His mother's iPad password."
created_at"2026-09-23T17:58:39.337Z" 9/23/2026, 5:58:39 PM
model"anthropic/claude-opus-5.5-20260921"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency5859
moderation_latency(null)
generation_time23368
tokens_prompt75
tokens_completion505
native_tokens_prompt95
native_tokens_completion1983
native_tokens_completion_images(null)
native_tokens_reasoning1540
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"
usage0.04004
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.20.0; linux; x64))"
http_referer(null)
request_id"req-1790186319-Di57PFQSz27h8ZlWxaxO"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1790186319-GNmrMPSkCJlh7UVnAbPN"
upstream_id"msg_011CfLofZdeZFnNG4CawfPfK"
provider_responses
0
endpoint_id"3a2388bc-3740-4e64-a1f5-4e301726b6b9"
id"msg_011CfLofZdeZFnNG4CawfPfK"
is_byokfalse
latency1235
model_permaslug"anthropic/claude-opus-5.5-20260921"
provider_name"Claude Platform on AWS"
status200
total_cost0.04004
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
99.22% Dialogue to Total Word Ratio
Ratio: 52.97%, Deviation: 2.97%
neededCleanfalse
wordsTotal202
wordsDialogue107
99.6043%