Run: 2026-05-31-01KSYXAATBFVMG9QPK2V4WVRG7

Run Details

Duration:
9.3s
Cost:
$0.012315
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
66.26% Dialogue to Total Word Ratio (details)
83.1276% 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?" Molly whispered. "Absolutely," Bill said. "Forty kids, forty presents. We'll be rich." "They're seven-year-olds, Bill. The presents are coloring books." "And cash. Grandparents always slip in cash." "How do we get past security?" "Security? It's a birthday party at a bounce house." "There's a clown." "The clown is not security, Molly." "He looked at me funny." "Everyone looks at you funny." "So what's the plan?" "We dress as parents. We blend in. We grab the gift table, we walk out." "I don't have kids." "Neither does half the room. Just complain about nap schedules and gluten." "What if they ask which kid is mine?" "Point at the loudest one and sigh." "And the cake?" "What about the cake?" "Are we taking the cake?" "We're not taking the cake, Molly." "It's a lot of cake." "Focus! Gifts only. In and out, ninety seconds." "What about the piñata?" "What about it?" "It's full of candy. That's basically free money." "Fine. Gifts and the piñata." "And the cake." "And the—no! Not the cake!" "You're no fun." "We're committing a crime, Molly. It's not supposed to be fun." "Then why am I wearing a party hat?" "...Camouflage."
created_at"2026-05-31T11:39:42.809Z" 5/31/2026, 11:39:42 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1011
moderation_latency(null)
generation_time9123
tokens_prompt77
tokens_completion348
native_tokens_prompt93
native_tokens_completion474
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"
usage0.012315
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Kjk7CMGZkf3LwKB5jE2TuH"
is_byokfalse
latency1011
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-1780227582-5i6FcSlVhGLOc2cDSrUq"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227582-oluNNvxlNxJVsgleCz5v"
upstream_id"msg_01Kjk7CMGZkf3LwKB5jE2TuH"
total_cost0.012315
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
66.26% Dialogue to Total Word Ratio
Ratio: 98.01%, Deviation: 8.01%
neededCleanfalse
wordsTotal201
wordsDialogue197
83.1276%