Meta re-entering the open-weight arena is the real story here — after a shaky Llama cycle, the company needed a credible answer to Qwen, GLM and Kimi, and an 816B multimodal model with a million-token context is at least a serious attempt. Still, 'roughly on par' is the telling phrase: this is catch-up, not a leap, and parity with Chinese open models reads more as damage control than dominance. The most interesting detail is the M5 Ultra optimization — betting on local inference could give Meta a distinct lane as cloud compute costs balloon. Watch the license terms and day-one developer uptake; that will decide whether this resets the open race or becomes another Llama 4 moment. On balance: a weighty release, but not yet a paradigm shift.