Run: 2026-05-31-01KSYXDNCEW4E9MDQ3PT96EE4P

Run Details

Duration:
9.8s
Cost:
$0.012890
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.92% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.9606% 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 blueprints across the table, knocking over Bill's juice box. "Watch it," Bill grumbled, dabbing the wet paper with a napkin shaped like a dinosaur. "Focus. The party starts at two. We hit them during pin-the-tail." Bill squinted at the diagram. "Why is there a bounce castle marked as 'extraction point'?" "Because nobody suspects a man crawling out of a bounce castle," Molly said. "They will when I'm carrying forty presents." "That's why you wear the clown costume." Bill folded his arms. "I'm not wearing the clown costume." "Bill, we discussed this." "You discussed it. I screamed." Molly sighed and pointed at the floor plan. "The gifts are stacked here, by the cake. Single mother, distracted, thirty screaming children. It's the perfect storm." "It's a six-year-old's birthday." "Crime doesn't have an age limit." Bill picked at the dinosaur napkin. "What if they offer us cake?" "Then we take the cake too." "Molly, that's monstrous." "That's professional." He stared at her, then slowly nodded. "Fine. But I'm not doing the balloon animals." "You'll do whatever the disguise requires." "I can't even make a balloon dog!" "Then make a balloon disgrace," Molly snapped. "Just sell it." Bill reached for the clown wig, defeated.
created_at"2026-05-31T11:41:31.931Z" 5/31/2026, 11:41:31 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency986
moderation_latency(null)
generation_time9717
tokens_prompt77
tokens_completion350
native_tokens_prompt93
native_tokens_completion497
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"
usage0.01289
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01PjcPbanmMVoHvV9KaM8tTs"
is_byokfalse
latency986
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-1780227691-brsaApI3FMlbCR88rSKn"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780227691-2xdAXdnoWQ8aFJTAxDTB"
upstream_id"msg_01PjcPbanmMVoHvV9KaM8tTs"
total_cost0.01289
cache_discount(null)
upstream_inference_cost0
provider_name"Anthropic"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
99.92% Matches word count n/a
neededCleanfalse
words203
0.00% Dialogue to Total Word Ratio
Ratio: 68.12%, Deviation: 18.12%
neededCleanfalse
wordsTotal207
wordsDialogue141
49.9606%