Ok, I see. I confirm my first analysis: you need to raise funds, and concentrate on funding. Not talking to competitor. At all.
Since I'm very straight in this advice, with very few elements for such decision, I must enter into details. First: who I am. In the startup world, I'm a technical founder of a software startup. So, I naturally think the value is in the product. Other people may think the startup value is in biz dev or marketing, but my opinion is "value in the product". I precise this because the final decision will be yours, and you will assume all the consequences, not me. So it's honest to explain where is the bias in my opinion.
When I read your two posts, I understand you have a good product and lack of money. And maybe lack of a marketing/sales/bizdev guy or girl. The competitor has money from fundings, thus certainly the marketing/sales/bizdev team with high level skills and rolodex, but "ordinary" tech guys (maybe very young developers from coding bootcamp ? contractors ? offshore ?). It wouldn't surprise me, it is very rare to find teams with strong people on both sides. And I think because your product is better, you are talented engineers, and nobody in your team has exceptional operational skills (like in my own team).
Don't talk to your competitors. They will never buy you (more than one dollar). They will never share anything good for you. They will just stab you in the back and get your technology for free. If you go to them, it's like defying the world champion of poker without making the difference between an ace and a two. But from their point of view, you are stronger. They know perfectly YOU have the good product, and they have the bullshit. They know they are talented in lying, but one day or another, everybody will know they are bullshitters and you have the good product.
In such a game, the one which knocks the other's door has lost.
Do what it takes to raise funds. I can't advise on this part because I hate VC so much I always bootstrapped. But I'm convinced it is easier and faster for high level tech guys like you to quickly learn how to raise money than for bullshitters with fund raising capabilities to learn how to create a good product from nothing. You are stronger, you must know it, believe in it, and you will win. Your competitor will for sure die in a near future if they can't make really good products. Your single goal is to avoid being killed by them before they die (because they can do that, this is maybe the only thing they are capable of).