Run: 2026-06-01-01KT1GT35G9X8R58NP5VE5S3ZR

Run Details

Duration:
13.8s
Cost:
$0.014665
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
97.63% Matches word count (details)
90.02% Dialogue to Total Word Ratio (details)
93.8255% 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 sticky diner table, smoothing out a coffee stain that had unfortunately obscured the bouncy castle. Bill leaned in, chewing a pen, his eyes darting between the clown's stage and the heavily fortified snack table where the loot—a glittering mountain of wrapped presents—awaited liberation. The plan was elegant in its absurdity. They would arrive disguised as entertainers, Bill as a balloon artist and Molly as a face painter, slipping past the parents who guarded the perimeter like exhausted, juice-box-wielding sentries. Once inside, they would create a diversion during musical chairs, when chaos reigned supreme and no adult could be trusted to count children, let alone gift bags. Bill traced the escape route with a trembling finger, calculating how many parcels could fit inside their oversized novelty trousers. "Children are vicious," he whispered, remembering his nephew's birthday and the incident with the piñata stick. Molly nodded gravely, sliding him a smoke bomb shaped like a party popper. The trickiest part remained the cake. Tradition demanded singing, and singing meant scrutiny, and scrutiny meant capture. "We grab everything," she muttered, "before the candles." Bill saluted with his pen, knocking over the coffee, drowning the bouncy castle entirely beneath a fresh brown tide.
created_at"2026-06-01T11:58:51.06Z" 6/1/2026, 11:58:51 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3386
moderation_latency(null)
generation_time13813
tokens_prompt77
tokens_completion415
native_tokens_prompt93
native_tokens_completion568
native_tokens_completion_images(null)
native_tokens_reasoning64
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"
usage0.014665
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01QERF62bf2bq1hujCG7o1DM"
is_byokfalse
latency1197
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-1780315131-f8wFrVPYs8XeLsptTJBT"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315131-AvEn37CVU1ijp0aaH2yF"
upstream_id"msg_01QERF62bf2bq1hujCG7o1DM"
total_cost0.014665
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
97.63% Matches word count n/a
neededCleanfalse
words207
90.02% Dialogue to Total Word Ratio
Ratio: 4.31%, Deviation: 5.69%
neededCleanfalse
wordsTotal209
wordsDialogue9
93.8255%