Run: 2026-05-31-01KSYXSH8C2AWXBYFKZCW2EMDB

Run Details

Duration:
10.6s
Cost:
$0.014490
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
50.0000% Overall

Model input

User/Human
You are a author of comedic heist books. Please write a 200 word scene that has 50% 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
Molly spread the crayon-drawn blueprint across the table. "The party starts at noon. That's when the bouncy castle goes up." "And that's our window?" Bill asked, peering at the smudged paper. "Precisely. While forty sugar-crazed seven-year-olds storm the piƱata, we slip in through the back gate dressed as clowns." Bill grimaced. "I'm not wearing the wig again. It makes me look unhinged." "You are unhinged, Bill. That's why I love working with you." She tapped the diagram. "The presents are stacked here, beside the cake. We grab everything in the gift pile and vanish before anyone notices." "What about the parents?" "Distracted. There's an open bar." Bill brightened considerably. "Now that's a detail I can support." "Focus," Molly snapped. "We've got ninety seconds to load the loot into the van." "And if a kid spots us?" "You hand them a balloon animal and walk away calmly." "I can't make balloon animals." "Then twist something vaguely dog-shaped and run." Bill sighed, studying the plan one last time. "You realize we're stealing from children?" "Spoiled children," Molly corrected, slipping on her oversized red nose. "Their parents will buy replacements by Tuesday." "Brilliant," Bill muttered, reaching reluctantly for the dreaded wig. "Absolutely brilliant."
created_at"2026-05-31T11:48:00.921Z" 5/31/2026, 11:48:00 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3115
moderation_latency(null)
generation_time10525
tokens_prompt77
tokens_completion396
native_tokens_prompt93
native_tokens_completion561
native_tokens_completion_images(null)
native_tokens_reasoning50
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"
usage0.01449
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_011fyozzqx2CkFQD4uWE79kt"
is_byokfalse
latency1451
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-1780228080-yIJGIWg9CuvTivtgBvTf"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780228080-Li9YlzhBI9U5xoFEVaJY"
upstream_id"msg_011fyozzqx2CkFQD4uWE79kt"
total_cost0.01449
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
words200
0.00% Dialogue to Total Word Ratio
Ratio: 75.12%, Deviation: 25.12%
neededCleanfalse
wordsTotal205
wordsDialogue154
50.0000%