Run: 2026-06-01-01KT1HBZ3E92YWWHRFJMR59E4R

Run Details

Duration:
10.6s
Cost:
$0.014415
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)
11.00% Dialogue to Total Word Ratio (details)
55.4988% 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 crouched behind the hedge, binoculars trained on the bouncy castle. Bill chewed nervously on a stolen party balloon. "There must be forty presents in that pile," Molly whispered. "We grab them during the magic show." "What about the clown?" Bill asked. "What about him?" "Clowns terrify me, Molly. You know this." She lowered the binoculars and stared at him. "We've robbed three banks and an armored truck. You're scared of a man in oversized shoes?" "It's the painted smile. It's unnatural." A child shrieked with laughter somewhere beyond the fence, and Bill flinched violently, crushing the balloon. "Focus," Molly hissed. "Twelve o'clock, parents bring out the cake. Everyone's distracted singing. We move in, fill the duffel bags, and exit through the petting zoo." "There's a petting zoo?" "Don't get attached to the goats, Bill." He scribbled something in a tiny notebook decorated with cartoon ponies. Molly noticed and frowned. "Where did you get that?" "The gift table. It's reconnaissance." "It's a four-year-old's diary." Bill closed it guiltily. "She wrote that she wants a pony for Christmas. It's actually quite moving." Molly snatched the notebook and tossed it aside. "We're professionals. Now grab the chloroform and the juice boxes."
created_at"2026-06-01T12:08:36.727Z" 6/1/2026, 12:08:36 PM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency3038
moderation_latency(null)
generation_time10598
tokens_prompt77
tokens_completion398
native_tokens_prompt93
native_tokens_completion558
native_tokens_completion_images(null)
native_tokens_reasoning55
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"
usage0.014415
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01Jb5DD381HCdyw6hjSs9rGA"
is_byokfalse
latency1186
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-1780315716-MZbN78U41RaMhaJI0xSU"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780315716-1pXpxBAdBc8jNxkOoi23"
upstream_id"msg_01Jb5DD381HCdyw6hjSs9rGA"
total_cost0.014415
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
11.00% Dialogue to Total Word Ratio
Ratio: 62.19%, Deviation: 12.19%
neededCleanfalse
wordsTotal201
wordsDialogue125
55.4988%