Connect directly to Anthropic Claude

// Configure once in Terminal: aner secrets set anthropic
// Choose a model available to your account. Checking sends no provider requests.
// Running sends one request and can incur charges; keep private keys in aner.secrets.
import aner.llm
import aner.secrets

let model = llm.client(provider: "anthropic", model: "claude-sonnet-5-5",
    key: secrets.stored("anthropic"))
// An explicitly selected file is another source: secrets.dotenv(path: ".env.local",
//     name: "ANTHROPIC_API_KEY")
// Omit temperature to preserve the provider default.
let answer = model.generate("Explain the purpose of validation data.",
    max_tokens: 1024)
print(answer.text())
print(answer.model())
print(answer.finish_reason())
print("Input tokens: " + String(answer.input_tokens()))
print("Output tokens: " + String(answer.output_tokens()))
print("Total tokens: " + String(answer.total_tokens()))
// A reported -1 means unavailable; zero is a valid reported count.