Grok 4.3 lands, and cross-tab sync gets leaner

Grok 4.3 joins the lineup

Grok 4.3 is now selectable alongside the rest of xAI's models in Anuma — xAI's latest, drop-in available across the model picker.

Cross-tab sync, lighter on the wire

Behind the scenes, the multi-tab streaming pipeline got a meaningful upgrade. Anuma already keeps conversations in lockstep across browser tabs; this week the cross-tab pipeline switched from full-snapshot updates to delta updates — only the changed bits travel between tabs. Multi-tab chats stay in sync the same way, with less bandwidth and quicker convergence under heavy streaming.

Quality

Synthetic tool-result placeholders no longer leak into the model's view of your conversation history, so answers stay grounded in what you actually said.