Run: 2026-05-29-01KSSK4CMHPK4MEE2B5NDCQV25

Run Details

Duration:
9.8s
Cost:
$0.012365
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9999% 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 spread the blueprints across the table, knocking over a half-eaten birthday cupcake she'd swiped as reconnaissance. "The bouncy castle is our biggest threat," she said, tapping the paper. "We go in at fourteen hundred hours, right when they cut the cake." Bill squinted. "Why then?" "Sugar rush. The kids will be feral. Total chaos. Nobody guards the present pile during cake time." "Brilliant." Bill stroked his chin. "But what about the parents?" "Distracted. Filming everything for social media." Molly grinned. "We'll be ghosts." Bill pulled out a clown costume from his duffel bag, holding it up proudly. "My disguise. Perfect cover." "Bill, the theme is *under the sea*. You'll stick out like a sore thumb." "A clown can be aquatic," he protested. "I'll say I'm a... a jellyfish." Molly pinched the bridge of her nose. "Just grab the loot and meet me at the swing set. Two minutes, tops." "What if a kid catches us?" "Then you improvise. Honk your nose. Make a balloon animal. Whatever it takes." Bill saluted, suddenly serious. "Molly, after twenty heists together, this feels different." "That's because," she sighed, zipping her bag, "we've never stolen from someone who fights back with juice boxes."
created_at"2026-05-29T10:05:30.136Z" 5/29/2026, 10:05:30 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1306
moderation_latency(null)
generation_time9806
tokens_prompt77
tokens_completion327
native_tokens_prompt93
native_tokens_completion476
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)
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origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"end_turn"
service_tier"default"
usage0.012365
router(null)
provider_responses
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endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01DKkvgxxu5Ekg9djkPLLJbk"
is_byokfalse
latency1306
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-1780049130-b6T3JDHMcHNGCydyp2cc"
session_id(null)
api_type"completions"
id"gen-1780049130-jWeLALsGKhi3rc3QcFDj"
upstream_id"msg_01DKkvgxxu5Ekg9djkPLLJbk"
total_cost0.012365
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
words199
0.00% Dialogue to Total Word Ratio
Ratio: 68.50%, Deviation: 18.50%
neededCleanfalse
wordsTotal200
wordsDialogue137
49.9999%