LettavsGoogle Antigravity

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

Letta

AI Agent Frameworks

Build stateful AI agents with long-term memory

Full review →Website ↗

Google Antigravity

Coding Assistants

Featured

Google agent-first coding platform with Antigravity 2.0 and Antigravity CLI

Full review →Website ↗
FeatureLettaGoogle Antigravity
CategoryAI Agent FrameworksCoding Assistants
PricingFree (open-source) + CloudFree access; higher capacity via Google AI Pro, Google AI Ultra, and enterprise access
GitHub Stars
✓ More stars
13k
—
PlatformsLinux, macOS, DockermacOS, Windows, Linux, Web
Key Features
  • ✓ Long-term memory
  • ✓ Stateful agents
  • ✓ Tool use
  • ✓ Multi-model
  • ✓ Self-editing memory
  • ✓ Antigravity 2.0 desktop app
  • ✓ Antigravity CLI
  • ✓ Subagents
  • ✓ Asynchronous background tasks
  • ✓ Skills and plugins
  • ✓ Hooks
  • ✓ MCP server support
  • ✓ Chrome and web-search interaction
  • ✓ Gemini CLI migration
Pros
  • + Solves long-term memory problem
  • + Self-editing memory
  • + Stateful agents
  • + Multi-model support
  • + Active research backing
  • + Official Google agent-first development platform
  • + Desktop and terminal surfaces share the same agent harness
  • + Supports parallel subagents and asynchronous workflows
  • + Supports skills, plugins, hooks, and MCP servers
  • + Direct migration path for Gemini CLI users
Cons
  • − Complex memory management
  • − Performance overhead
  • − Rebranding confusion
  • − Still experimental
  • − Gemini CLI consumer and free access migrates to Antigravity on June 18, 2026
  • − Not all Gemini CLI features have exact one-to-one parity at launch
  • − Pricing and capacity depend on Google account or enterprise access
  • − Autonomous agent changes still require review and permission controls
Tags
memorystatefulagentsopen-source
googleantigravitycodingagenticclidesktopsubagentsmcpskills

Want to compare different tools?

← Back to compare picker

Related Comparisons

Letta vs Abacus AI DeepAgent →Google Antigravity vs Abacus AI DeepAgent →Letta vs Amazon Q Developer →Google Antigravity vs Amazon Q Developer →Letta vs Gemini Code Assist →Google Antigravity vs Gemini Code Assist →Letta vs Microsoft AutoGen →Google Antigravity vs Microsoft AutoGen →Letta vs GitHub Copilot →Google Antigravity vs GitHub Copilot →Letta vs OpenAI Codex →Google Antigravity vs OpenAI Codex →