Run: 2026-05-29-01KSSJQMVY6VJK3RTXZJN9VR8R

Run Details

Duration:
13.1s
Cost:
$0.011790
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
95.99% Matches word count (details)
64.96% Dialogue to Total Word Ratio (details)
80.4742% 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 bouncy castle, binoculars pressed to her face, surveying the chaos of frosting and shrieking children. Bill squatted beside her, wearing a clown costume two sizes too small, the seams straining with every breath. "This is humiliating," he whispered. She lowered the binoculars and shot him a withering glare. The plan was simple, elegant even. Wait for the piƱata distraction, infiltrate through the gift table, and extract the treasure during the inevitable sugar-fueled stampede toward the cake. Bill tugged at his rainbow wig, sweat beading beneath the synthetic curls. He'd argued against the disguise for an entire week, insisting that grown men loitering at a seven-year-old's birthday would draw suspicion regardless of their attire. Molly had countered that nothing was less suspicious than a clown, statistically speaking, and besides, they had a reputation to uphold. Three successful heists this month alone, and not one of them involving anything as glamorous as jewels or cash. She checked her watch. The mountain of brightly wrapped boxes glittered in the afternoon sun, taunting them. "Ready?" she asked. He nodded grimly, honking the red nose strapped to his face. Together they crept forward, two professional criminals descending upon the most heavily defended target imaginable: small children and their loot.
created_at"2026-05-29T09:58:32.584Z" 5/29/2026, 9:58:32 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1321
moderation_latency(null)
generation_time13057
tokens_prompt77
tokens_completion352
native_tokens_prompt93
native_tokens_completion453
native_tokens_completion_images(null)
native_tokens_reasoning0
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"
usage0.01179
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01WgTetCBLPZSU7sGDZFbBuA"
is_byokfalse
latency1268
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-1780048712-KeHravCgT8Iqym5AS3Ln"
session_id(null)
api_type"completions"
id"gen-1780048712-1WMFHkIktChVUVRcsleO"
upstream_id"msg_01WgTetCBLPZSU7sGDZFbBuA"
total_cost0.01179
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
95.99% Matches word count n/a
neededCleanfalse
words208
64.96% Dialogue to Total Word Ratio
Ratio: 1.90%, Deviation: 8.10%
neededCleanfalse
wordsTotal211
wordsDialogue4
80.4742%