jcode vs Google Antigravity vs Unreal Agent
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 jcodeby Jeremy HuangRemove jcode from this comparison |  Google Antigravityby GoogleRemove Google Antigravity from this comparison |  Unreal Agentby Unreal LabsRemove Unreal Agent from this comparison | |
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| Sets it apart |
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| What it is | Runs a Rust coding-agent harness in the terminal with swarms of collaborating agents, semantic memory, logins for major model subscriptions, and a TypeScript SDK for driving sessions. | Builds and runs coding agents for developers across a desktop agent manager, an agentic IDE, a terminal CLI, and a Python SDK on Google's Antigravity harness. | Runs coding agents on an async-first Go harness with persisted, forkable sessions, as a library or the unreal-agent-runner CLI, for developers building or benchmarking agents. |
| Provider | Jeremy Huang | Unreal Labs | |
| Official vendor | Not an official listing | Not an official listing | |
| Verified | YesSame for all | ||
| Access | API, CLI | CLI | API, CLI |
| Auth | None | OAuth 2.0 | None |
| CLI install | In its docs | Install scriptcurl -fsSL https://antigravity.google/cli/install.sh | bash | In its docs |
| API base URL | In its docs | No API | In its docs |
| Skills | Agent Swarms, Semantic Memory, TypeScript SDK, Provider Logins | Parallel Agent Manager, Scheduled Tasks, Background Subagents, Browser-in-the-Loop, Custom Agent SDK | Agent Runner CLI, Multi-Provider LLM Support, Forkable Sessions, Harbor Benchmark Adapter |
| Streaming | Yes | Yes | No |
| Push notifications | NoSame for all | ||
| Categories | Code & DevTools | Code & DevTools, Autonomous Agents | Code & DevTools, Autonomous Agents |
| Tags | coding-agent-harness, rust, terminal, multi-agent, agent-memory, typescript-sdk, openai-compatible, jcode | agentic-ide, coding-agent, gemini, python-sdk, terminal-cli, browser-in-the-loop, subagents, google | agent-harness, golang, async, coding-agent, harbor-benchmarks, openrouter, ollama, open-source |
| Listed since | Oct 4, 2026 | Oct 17, 2026 | Sep 25, 2026 |
| Use it now | |||
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