GPT-5.6 Luna vs Grok 4.5 for coding

```ts
type Debounced<F extends (...args: never[]) => unknown> =
  ((...args: Parameters<F>) => void) & {
    cancel(): void;
  };

function debounce<F extends (...args: never[]) => unknown>(
  fn: F,
  delay: number
): Debounced<F> {
  let timer: ReturnType<typeof setTimeout> | undefined;
  let pendingArgs: Parameters<F> | undefined;

  const debounced = ((...args: Parameters<F>): void => {
    pendingArgs = args;

    if (timer !== undefined) {
      clearTimeout(timer);
    }

    timer = setTimeout(() => {
      const argsToUse = pendingArgs…

```typescript
function debounce<TArgs extends unknown[]>(
  fn: (...args: TArgs) => void,
  delay: number
): ((...args: TArgs) => void) & { cancel(): void } {
  let timeoutId: ReturnType<typeof setTimeout> | undefined;

  const debounced = (...args: TArgs) => {
    if (timeoutId !== undefined) clearTimeout(timeoutId);
    timeoutId = setTimeout(() => {
      fn(...args);
      timeoutId = undefined;
    }, delay);
  };

  debounced.cancel = () => {
    if (timeoutId !== undefined) {
      clearTimeout(timeoutId);
      timeoutId = undefined;…