A first look at everything new in Agent 4 https://t.co/vtdSDWJpmZ
— Replit ⠕ (@Replit) 12 mars 2026
A first look at everything new in Agent 4
TOOLS
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New Features in Agent 4 Announced
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One-Shot iOS App Development: From Months to Minutes
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I remember coding my first very basic iOS app in months haha. The fact that this is one-shot now is insane.
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llmfit: Auto-detect hardware and rank 206 models by VRAM compatibility
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Stop guessing which models fit in your VRAM! llmfit is a CLI tool that auto-detects your hardware and ranks 206 models by what actually runs on your system. You download a 70B model and hope it fits. Or you estimate memory requirements across quantization levels and still end
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Model optimization: context reduction saves download resources
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Yeah and it tries half context if nothing fits at full. Saves you from downloading models that won't work
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CLI vs MCP: Single-User Hackers Enterprise Teams
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CLI: Good for single-user mode, hackers.
MCP: Good for multi-user mode, teams/enterprises. -
CLI vs MCP: Single-User Hackers versus Multi-User Teams
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CLI: Good for single-user mode, hackers.
MCP: Good for multi-user mode, teams/enterprises. -
CLI vs MCP: Single-user versus Enterprise AI Interfaces
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CLI: Good for single-user mode, hackers.
MCP: Good for multi-user mode, teams/enterprises. -
Securing OpenClaw Servers and Personal AI Assistants
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This is how you make your OpenClaw server invisible to the internet.
— Akshay 🚀 (@akshay_pachaar) 12 mars 2026
(world's most SECURE OpenClaw deployment)
The security fundamentals you learn in this video directly apply to any personal AI assistant or VPS setup.
Enjoy!
Chapters:
0:00 – Intro
1:00 – What we'll cover… pic.twitter.com/3IyelLD1w4This is how you make your OpenClaw server invisible to the internet. (world's most SECURE OpenClaw deployment) The security fundamentals you learn in this video directly apply to any personal AI assistant or VPS setup. Enjoy! Chapters: 0:00 – Intro
1:00 – What we'll cover -
Thanks for the writing rework by Claude
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Oh wow wait, that's not bad adding a writing rework by Claude! Thanks!
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Using AI to format a daily newsletter
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Well, obviously to put out a daily newsletter I'm not going to spend 2 hours writing it. I do the draft, I choose the news, the sentences roughly, and then the AI formats it.