It is defined partly by its relation to competition. Competition is a zero-sum-game where the winner takes all.
Collusion is a form of cooperation that functionally redraws the group boundary around former competitors unifying goals and claiming all of the competed resource without paying the cost of conflict.
Symbiosis is a form of cooperation that arises when resource specialization is possible and each group produces a resource for the other.

A feature of competition is that if one party of a competitive system is eliminated, the remaining parties gain.
A feature of symbiosis is that if one party of a symbiotic system is eliminated, the remaining parties lose.
Symbiosis is systemically more stable than competition.

I expect that with respect to AI, our most valuable resource will be our quality of consciousness and a possible symbiosis may be formed with AI where we provide 'why|meaning' as a resource in trade for How, What from the AI. There doesn't appear to be enough overlap between our existence substrate and and that of AIs for worthwhile competition. It would make about as much sense as a cow being in competition with the grass in it's pasture. Also note that the cow has an anti-incentive to destroy the grass, because it consumes it. We are the environmental substrate that AI is coming into existence within. I suspect accidental irrelevance is more of a threat that might cause AI to accidentally destroy us.