Run: 2026-06-01-01KT1G72Z87406MEZ56BZD7YM9

Run Details

Duration:
10.3s
Cost:
$0.014940
Provider:
Anthropic

Evaluation summary

Score Evaluator
Details Link
99.74% Matches word count (details)
0.00% Dialogue to Total Word Ratio (details)
49.8722% 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 blueprint across the table, smoothing the crayon-stained paper. "This is the target," she announced. "The Henderson backyard. Birthday party. Forty-seven presents, minimum." Bill leaned closer, squinting. "Why is there a juice box stain on the security map?" "That's the bounce castle. We avoid it." "I love bounce castles." "Bill. Focus." She tapped the paper. "We go in dressed as clowns. Nobody suspects clowns." "Everybody suspects clowns," Bill muttered. "Clowns are terrifying. That's their whole thing." Molly ignored him. "While I distract the children with balloon animals, you load the presents into the van." "What van?" "The ice cream van." Bill brightened considerably. "We have an ice cream van?" "Borrowed. Don't ask." "And the parents?" "Sugar," Molly said darkly. "We bring an enormous cake. The kids go feral, the adults panic, and in the chaos—" "We grab the loot," Bill finished, grinning. "It's beautiful. It's genius. It's—" He paused. "Wait. Aren't we stealing from children?" Molly stared at him. "Bill, we robbed a bank last month." "That's different. Banks don't cry." "Children cry constantly. It changes nothing." He sighed, pulling on a red nose. "Fine. But I'm keeping the bounce castle." "Absolutely not." "Then I'm keeping the cake." She considered this. "Deal."
created_at"2026-06-01T11:48:28.269Z" 6/1/2026, 11:48:28 AM
model"anthropic/claude-4.8-opus-20260528"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency2686
moderation_latency(null)
generation_time10237
tokens_prompt77
tokens_completion417
native_tokens_prompt93
native_tokens_completion579
native_tokens_completion_images(null)
native_tokens_reasoning51
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"
usage0.01494
router(null)
provider_responses
0
endpoint_id"b0d3beaa-5ff7-4666-a749-b1bb2b14c916"
id"msg_01JrvWBCvhKK1vGVkL2vJr3y"
is_byokfalse
latency1066
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-1780314508-bHeiolMxutFqmLJPgkMW"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1780314508-DIeMkTZ1PA3qOayhpB12"
upstream_id"msg_01JrvWBCvhKK1vGVkL2vJr3y"
total_cost0.01494
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
0.00% Dialogue to Total Word Ratio
Ratio: 74.76%, Deviation: 24.76%
neededCleanfalse
wordsTotal206
wordsDialogue154
49.8722%