xAI Grok 4.20 with Parallel Agents

xAI new version of Grok runs 4 Grok4 agents in parallel. The result is not too bad. xAI added a new SuperGrok Heavy tier that runs 16 agents. While Grok is still far from OpenAI and Anthropic level, it's improving quite a bit, and it remains by far the best model for searching Tweets and for low guardrails: