Run: 2026-05-29-01KSSK1NBQK9J53Z8RHRF12S0V

Run Details

Duration:
9.6s
Cost:
$0.012640
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
91.12% Dialogue to Total Word Ratio (details)
95.5514% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 90% 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
"So we're really doing this?" Bill asked. "We're really doing this," Molly said. "Stealing presents from children." "Stealing presents from one child. Focus, Bill." "It feels wrong." "It felt wrong when you ate my sandwich last Tuesday, but you survived." "That was different. That was a sandwich." "And this is a PlayStation, three drones, and a gift card to somewhere expensive. Priorities." "What's the plan?" "You dress as the clown." "Absolutely not." "You dress as the clown," Molly repeated, "and distract the kids while I load the loot into the van." "Why am I always the clown?" "Because you have the face for it." "That's hurtful." "It's strategic. Now, the cake comes out at three. That's our window." "What if they cry?" "Children always cry. It's their natural state." "What if the parents notice?" "The parents will be drunk by two-thirty. Trust me, I scouted the invitation." "You scouted the invitation?" "I'm thorough." "Molly, we're stealing from a seven-year-old." "He's turning eight, actually." "That's worse!" "That's irrelevant. Are you in or out?" Bill sighed heavily. "I'm in. But I'm not honking the nose." "You'll honk the nose." "I won't." "You'll honk the nose, Bill." "...I'll honk the nose."
created_at"2026-05-29T10:04:00.768Z" 5/29/2026, 10:04:00 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1481
moderation_latency(null)
generation_time9563
tokens_prompt77
tokens_completion360
native_tokens_prompt93
native_tokens_completion487
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"
usage0.01264
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Jrp9ZJH2pGciDAn3JhBxBf"
is_byokfalse
latency1481
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-1780049040-ulbs1kL0GFsS8vI8EJwE"
session_id(null)
api_type"completions"
id"gen-1780049040-4ZpC9FmTlYPgFCr8jxtv"
upstream_id"msg_01Jrp9ZJH2pGciDAn3JhBxBf"
total_cost0.01264
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.98% Matches word count n/a
neededCleanfalse
words198
91.12% Dialogue to Total Word Ratio
Ratio: 95.52%, Deviation: 5.52%
neededCleanfalse
wordsTotal201
wordsDialogue192
95.5514%