Run: 2026-05-31-01KSYXJAZ1W5JVJV1QH9FH3XDP

Run Details

Duration:
11.2s
Cost:
$0.015190
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
99.89% Dialogue to Total Word Ratio (details)
99.9443% 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 hydrangea bush, binoculars trained on the suburban fortress decorated with balloons and crepe-paper streamers. Bill, meanwhile, was attempting to wrestle a clown costume over his considerable belly, the polyester straining against decades of questionable dietary choices. The plan, as Molly had explained it roughly forty times, was elegant in its simplicity: infiltrate the seventh birthday party of one Timothy Pennington, blend in among the parents, and abscond with the towering mountain of wrapped gifts before the candles were even lit. The garden swarmed with sugar-crazed children, their shrieks piercing the afternoon like tiny ungreased hinges. A bouncy castle wobbled ominously. Somewhere, a piƱata dangled, awaiting its violent destiny. "This is undignified," Bill grumbled, adjusting his rubber nose. Molly silenced him with a withering glare that could curdle milk at twenty paces. She had spent three weeks casing this operation, studying the parents' arrival patterns, the caterer's schedule, the precise moment the magician arrived to distract the masses with disappearing scarves. Bill honked his nose accidentally, startling a passing toddler. "Stay focused," she hissed. The presents glittered like Christmas itself, beckoning. Molly cracked her knuckles, smiled wickedly, and signaled the advance toward childhood's most poorly defended treasure trove.
created_at"2026-05-31T11:44:05.101Z" 5/31/2026, 11:44:05 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency6981
moderation_latency(null)
generation_time11183
tokens_prompt77
tokens_completion438
native_tokens_prompt93
native_tokens_completion589
native_tokens_completion_images(null)
native_tokens_reasoning77
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"
usage0.01519
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01LJdanPcXcqg1ka5VLQ97io"
is_byokfalse
latency1068
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-1780227845-PvThAycITFIpea7soERi"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227845-5aGhuvMl7HHJC4eJ79in"
upstream_id"msg_01LJdanPcXcqg1ka5VLQ97io"
total_cost0.01519
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
words201
99.89% Dialogue to Total Word Ratio
Ratio: 11.82%, Deviation: 1.82%
neededCleanfalse
wordsTotal203
wordsDialogue24
99.9443%