Run: 2026-05-29-01KSSJY91MHBFYY6GQDX9E7GWH

Run Details

Duration:
9.3s
Cost:
$0.012690
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
95.99% Matches word count (details)
67.37% Dialogue to Total Word Ratio (details)
81.6792% 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 whispered. "We're doing this," Molly said. "Stealing presents from children." "From one child. Tristan. He's turning seven." "That's worse, somehow." "He's a horrible little boy, Bill. Bit my ankle at the supermarket last week." "And our plan is?" "You dress as the clown. I distract the parents with cake-related questions." "Why am I the clown?" "Because you have the face for it." "That's hurtful." "I packed you a wig." "What kind of wig?" "Rainbow. Very festive." "And the presents?" "You stuff them into the balloon bag while juggling." "I can't juggle." "Then learn, Bill. We've got nine minutes." "Nine minutes until what?" "Until the piñata. Everyone closes their eyes for the piñata. That's our window." "Why would they close their eyes?" "Safety. There's a bat involved." "This is insane." "This is genius. Now put on the nose." "It squeaks." "It's supposed to squeak." "Molly, there's a child watching us through the window." "Smile, Bill." "He's pointing at us." "Wave, Bill." "He's telling his mother." "Run, Bill." "What about the presents?" "Forget the presents! Grab the cake!" "Why the cake?" "Because I'm hungry and we've failed! Move!"
created_at"2026-05-29T10:02:09.852Z" 5/29/2026, 10:02:09 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1187
moderation_latency(null)
generation_time9265
tokens_prompt77
tokens_completion361
native_tokens_prompt93
native_tokens_completion489
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"
usage0.01269
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_014yddfth1j5S7o35Se4SMt7"
is_byokfalse
latency1187
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-1780048929-6KDl9726wEtqQAciVbtS"
session_id(null)
api_type"completions"
id"gen-1780048929-ykWJmMjNabmaJWqVHRwL"
upstream_id"msg_014yddfth1j5S7o35Se4SMt7"
total_cost0.01269
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
words192
67.37% Dialogue to Total Word Ratio
Ratio: 97.93%, Deviation: 7.93%
neededCleanfalse
wordsTotal193
wordsDialogue189
81.6792%