Elon Musk has a funny way of saying congratulations.

After Jeff Bezos' rocket company Blue Origin had a successful launch Monday, Musk, the CEO ofTesla (TSLA) and SpaceX, was quick to say congrats on Twitter.

Blue Origin's New Shepard rocket made it successfully into outer space and then landed upright upon its return to Earth.

Creating a rocket that can be reused could drastically cut the cost of space travel. That's also a central goal of SpaceX, which has twice tried to land a rocket vertically that had been to space. But the rocket toppled over both times.

A third attempt in June failed when the unmanned rocket exploded on its way to space.

But Musk couldn't leave it at that.

He let folks know that SpaceX has more ambitious space travel plans than Blue Origin, and that much is clear. SpaceX has already won contracts from both NASA and commercial customers tocarry payloads and people into orbit, while Blue Origin's New Shepard rocket is designed to carry space tourists for flights that last only a few minutes.

Musk also said that his company has already achieved the vertical rocket landing that Blue Origin did on Monday, which is a far more dubious claim.