6.1 is Astra minor. Way more capable but also way heavier+slower. Its really 2 different models, they just shipped it as sol to recover from the gpt6 disaster lunch, where they tried to pass terra 6(or a cheaper model) as sol but it was worse than expected

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sscaryterry 2 days ago | parent [-]

Anecdotally this is what I experienced, do you have sources for this?

	▲	spijdar 2 days ago \| parent [-]
		It's purely circumstantial, but 6 Sol supports no reasoning (same as 6 Luna and 5.6 Sol/Luna), while both Astra and 6.1 Sol do not support "reasoning = none".