Run: 2026-05-31-01KSYXG8P6E99EM1XNQMMYSATT

Run Details

Duration:
9.5s
Cost:
$0.012165
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.74% Matches word count (details)
78.01% Dialogue to Total Word Ratio (details)
88.8795% 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. "Stealing from kids?" "Not kids. Rich kids," Molly said. "There's a difference." "What difference?" "About four thousand dollars in unopened presents. The Hendersons spare no expense." "And the plan?" "You're the clown." "Absolutely not." "Bill, you have the face for it." "That's deeply offensive." "You distract the children with balloon animals while I load the loot into the van." "I don't know how to make balloon animals." "Then make balloon blobs. They're six. They won't know." "And if a parent recognizes me?" "From where? Your modeling career?" "From the bank job!" "You wore a ski mask at the bank job." "Should I wear a ski mask now?" "To a children's party? In July? Yes, Bill, that's subtle." "What about the cake?" he asked. "What about it?" "Can I have some?" "You want cake during a heist?" "I work better with sugar." "Fine. One slice. After the presents are loaded." "Two slices." "You drive a hard bargain for a clown." "And no pony stuff. I'm not cleaning that up." "There's a pony?" "There's always a pony with rich kids, Molly." "Then we steal the pony too." "We are not stealing a pony!" "We'll discuss it in the van."
created_at"2026-05-31T11:42:57.237Z" 5/31/2026, 11:42:57 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1167
moderation_latency(null)
generation_time9481
tokens_prompt77
tokens_completion351
native_tokens_prompt93
native_tokens_completion468
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"
usage0.012165
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01JFDVJyDjJwZVgDNm33rzyr"
is_byokfalse
latency1167
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-1780227777-GVeUXs5s2CgH7lkzYNXF"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227777-zXK3uA7eZW7KBtpitZzH"
upstream_id"msg_01JFDVJyDjJwZVgDNm33rzyr"
total_cost0.012165
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.74% Matches word count n/a
neededCleanfalse
words204
78.01% Dialogue to Total Word Ratio
Ratio: 97.06%, Deviation: 7.06%
neededCleanfalse
wordsTotal204
wordsDialogue198
88.8795%