Google Antigravity

Google Antigravity

Google
5.0 out of 5 stars
Google Antigravity Letta

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Google Antigravity:

About

Google Antigravity is an agentic development platform that reimagines the traditional IDE for the AI-first era. Designed for developers of all levels, it enables seamless collaboration between humans and intelligent agents across the editor, terminal, and browser. The platform allows developers to issue natural language commands, monitor autonomous coding workflows, and review generated artifacts—all from a unified interface. Antigravity introduces cross-surface agent synchronization, ensuring consistency and context sharing across multiple workspaces. Its mission control view lets users manage and refine multiple agents simultaneously, making complex development tasks faster, smarter, and more intuitive. Whether you’re building enterprise-scale systems or experimenting creatively, Google Antigravity elevates the development experience into a new era of agent-driven productivity.
Letta:

About

Create, deploy, and manage your agents at scale with Letta. Build production applications backed by agent microservices with REST APIs. Letta adds memory to your LLM services to give them advanced reasoning capabilities and transparent long-term memory (powered by MemGPT). We believe that programming agents start with programming memory. Built by the researchers behind MemGPT, introduces self-managed memory for LLMs. Expose the entire sequence of tool calls, reasoning, and decisions that explain agent outputs, right from Letta's Agent Development Environment (ADE). Most systems are built on frameworks that stop at prototyping. Letta' is built by systems engineers for production at scale so the agents you create can increase in utility over time. Interrogate the system, debug your agents, and fine-tune their outputs, all without succumbing to black box services built by Closed AI megacorps.
Google Antigravity:

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Supported
Chromebook Supported
Letta:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Google Antigravity:

Audience

Developers, engineers, and organizations seeking an AI-powered IDE that enables multi-agent collaboration, autonomous coding, and high-level software development through natural language and agentic workflows
Letta:

Audience

Developers and anyone interested in a solution to build AI agents and microservices
Google Antigravity:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Letta:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Google Antigravity:

API

Offers API Not Supported
Letta:

API

Offers API Supported
Google Antigravity:

Screenshots and Videos

Letta:

Screenshots and Videos

Google Antigravity:

Pricing

Free
Free Version Supported
Free Trial Not Supported
Letta:

Pricing

Free
Free Version Supported
Free Trial Not Supported
Google Antigravity:

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5
Letta:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Google Antigravity:

Pros & Cons from Real Users

Pros

  • Google Antigravity delivers one of the smoothest agent-first development experiences I’ve ever used on macOS. The cross-surface synchronization between editor, terminal, and browser feels seamless, and the natural-language code commands make complex tasks incredibly fast. Mission control for managing multiple agents is a standout feature, and the intelligent tab autocompletion feels noticeably more context-aware than traditional IDEs.

Cons

  • The platform is still new (I literally just started using it today), so some integrations feel limited compared to more mature IDE ecosystems. A few workflows require switching mental models from conventional tooling, which takes a bit of adjustment. I also found myself wanting deeper customization options for agent behavior—though these are likely to evolve quickly.
Google Antigravity:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Letta:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Google Antigravity:

Company Information

Google
Founded: 1998
United States
antigravity.google/
Letta:

Company Information

Letta
United States
www.letta.com
Google Antigravity:

Alternatives

Gemini platform

Gemini platform

Google
4.3 out of 5 stars
Letta:

Alternatives

Beacon

Beacon

Asymptote Labs
Google Antigravity:
Google AI Studio

Google AI Studio

Google
4.8 out of 5 stars
Letta:
Google Antigravity:
JetBrains Junie

JetBrains Junie

JetBrains
Letta:
Google Antigravity:
Cursor

Cursor

5.0 out of 5 stars
Letta:
Google Antigravity:
Letta:
Google Antigravity:

Categories

Agentic AI Supported
AI Coding Agents Supported
AI IDEs Supported
IDE Supported
Vibe Coding Supported
Letta:

Categories

Google Antigravity:

Integrations

Audo Supported
Claude Fable 5.1 Supported
Claude Fable 5.2 Supported
Claude Haiku 5.5 Supported
Claude Opus 4.6 Supported
Claude Opus 4.7 Supported
Claude Opus 4.8 Supported
Claude Opus 5 Supported
Claude Opus 5.5 Supported
Gamelabs Studio Supported
Gemini 3.5 Flash Supported
Gemini 3.5 Flash-Lite Supported
Gemini 3.8 Flash Cyber Supported
Gemini Managed Agents Supported
Gemini for Science Supported
Google AI Pro Supported
InsForge Supported
Morphy Supported
Nano Banana 2 Lite Supported
gpt-oss-120b Supported
Letta:

Integrations

Audo Not Supported
Claude Fable 5.1 Not Supported
Claude Fable 5.2 Not Supported
Claude Haiku 5.5 Not Supported
Claude Opus 4.6 Not Supported
Claude Opus 4.7 Not Supported
Claude Opus 4.8 Not Supported
Claude Opus 5 Not Supported
Claude Opus 5.5 Not Supported
Gamelabs Studio Not Supported
Gemini 3.5 Flash Not Supported
Gemini 3.5 Flash-Lite Not Supported
Gemini 3.8 Flash Cyber Not Supported
Gemini Managed Agents Not Supported
Gemini for Science Not Supported
Google AI Pro Not Supported
InsForge Not Supported
Morphy Not Supported
Nano Banana 2 Lite Not Supported
gpt-oss-120b Not Supported
Google Antigravity:
Claim Google Antigravity and update features and information
Claim Google Antigravity and update features and information
Letta:
Claim Letta and update features and information
Claim Letta and update features and information