About how strong these models are compared to claude - DeepSeek flash is much better than Haiku, GLM 5.2 is comparable at level of Opus, definitely better than Sonnet. In a quantization you could run with 256GB of VRAM, it would still be better than Sonnet I think.
You can run these models with API and save a lot of money compared to Claude too if you swap: Haiku -> DeepSeek Flash, Sonnet -> DeepSeek Pro, Opus -> GLM 5.2, Fable -> Kimi K3