Nah...the Generate3 is more akin to something like Doepfer's A-110-6, where you're dealing with an analog oscillator with a big assortment of modulation inputs. The Odessa is a VERY different critter. Instead of basic VCO topology, you'd be dealing with an FPGA-driven additive engine with the potential of outputting 2500 harmonics (which shocks the hell out of me; I thought that the Synclavier II was the big dawg with 128 partials back in the day!). And with the Hel expander (and it's in there) you can have FIVE VOICES coming out of the Odessa and feed 'em all through the next VCA set to the Linneaus in glorious stereo. The Generate3 absolutely cannot compete with that feature set, and I didn't even get super-deep into all of the Odessa voodoo.
Also, with this, you'll want a controller/sequencer that can take advantage of that voicing scheme...with the best bet there being an Arturia Keystep Pro. It's also flexible enough that you can use it with loads of other devices, too.