Personifying a probabilistic text prediction model aside, wouldn't (or shouldn't?) the illegal thing be to provide nonpublic information to a trading analysis s

Personifying a probabilistic text prediction model aside, wouldn't (or shouldn't?) the illegal thing be to provide nonpublic information to a trading analysis system in the first place? Given enough resources, it could presumably take an equivalent position to a sell by e.g. selling an index including the target stock and direct investing all other stocks. Or buy/selling multiple ETFs to obtain the position it wants in a more obscure way. I assume that still constitutes an illegal trade (otherwise it seems like all you'd need is one easy trick that the SEC hates!)? Given sufficient degrees of freedom in the market and access to enough capital to obtain low error to the desired portfolio, it seems like you must keep that information away from it.