Run: 2026-05-29-01KSSJZ3A13C2J4QSN3KJ6CQJR

Run Details

Duration:
12.4s
Cost:
$0.012915
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.98% Matches word count (details)
100.00% Dialogue to Total Word Ratio (details)
99.9920% 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." "From a child. Singular. One spoiled birthday boy." "How old?" "Turning six." "Six!" Bill threw up his hands. "Molly, that's barbaric." "You robbed a retirement home last spring." "That was different. They were asleep." "And the kids will be distracted. There's a magician." "A magician?" Bill leaned forward. "Like, a good one?" "Focus, Bill." "I'm focusing! I'm just saying, if there's a magician—" "There's a piñata too." "Don't tempt me." "Look," Molly said, "we slip in through the garden gate at two. You're the clown." "Why am I the clown?" "Because you've got the face for it." "That's hurtful." "I distract the parents with the bounce house liability waiver. You load the gifts into the van." "And the cake?" "We are not taking the cake." "We're taking the cake." "Bill." "I want the cake, Molly." She sighed. "Fine. One slice." "The whole cake." "Half." "Deal." Bill grinned. "What about the goodie bags?" "Obviously the goodie bags." "Now you're speaking my language." He stood. "When do we leave?" "After lunch." "Can lunch be cake?" "We don't have the cake yet!" "Right. Details."
created_at"2026-05-29T10:02:36.746Z" 5/29/2026, 10:02:36 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4289
moderation_latency(null)
generation_time12348
tokens_prompt77
tokens_completion364
native_tokens_prompt93
native_tokens_completion498
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"
usage0.012915
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01GtUZyUA6kNN1v5g4rW8bWf"
is_byokfalse
latency4289
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-1780048956-JxWsOhfNpEwDD8M09QQb"
session_id(null)
api_type"completions"
id"gen-1780048956-nUWB75Qy82hM3pAfN8Iw"
upstream_id"msg_01GtUZyUA6kNN1v5g4rW8bWf"
total_cost0.012915
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
100.00% Dialogue to Total Word Ratio
Ratio: 89.90%, Deviation: 0.10%
neededCleanfalse
wordsTotal198
wordsDialogue178
99.9920%