Top 9 of 33 alternatives
Google Antigravity CLI alternatives like Factory and Junie
The closest alternatives to Google Antigravity CLI in October 2026 are Factory, Junie and Muse Code.
9 agents compared · entry plans $5 to $30 a month · 6 with a free plan · prices checked 21 October–1 November 2026
Reviewed by The Agents Index editorial team.
Is Google Antigravity CLI yours? Claim it free.
Featured agents appear first in this shortlist and on their category page.Get featured
Google Antigravity CLI and its alternatives at a glance
| Agent | Best for | Starts at | Better than Google Antigravity CLI at | Checked |
|---|---|---|---|---|
| Google Antigravity CLI | Developers already inside the Google ecosystem (Google AI subscription, GCP billing) who want a free terminal agent with Gemini, Claude and gpt-oss model access, especially anyone migrating off a now-sunset Gemini CLI workflow. | Free, then $30 a seat a month source | 22 October 2026 | |
| Factory | Engineering organizations that want AI agents handling more of the SDLC than code generation alone (triage, testing, release and documentation) and are willing to pay enterprise pricing for deployment flexibility and compliance controls. | From $20 a month source | Reviews code, Runs autonomously | 2 September 2026 |
| Junie | Developers and teams already standardized on a JetBrains IDE who want an agent that shares the same debugger, project index, and version control already built into their editor. | Free, then about $11 a seat a month source | Reviews code, Runs autonomously | 18 September 2026 |
| Muse Code | Cost-sensitive teams willing to trade code privacy for Contributor tier's roughly 12x cheaper input and 21x cheaper output, or anyone with a large multi-part refactor that benefits from several sub-agents working in parallel isolated worktrees. | From $5 a month source | Runs autonomously, Agent permissions | 20 September 2026 |
| OpenCode | Developers who want a genuinely free, fully open-source coding agent that works with any model provider, including their own local Ollama models, without being locked into one vendor's terminal tool. | Free, then $10 a month source | Reviews code, Runs autonomously | 21 October 2026 |
| Cursor | Professional developers who want a powerful AI agent woven into a familiar VS Code-based editor, with first-class model choice and the option to be hands-off via Cursor Router. | Free, then $8 a month source | Reviews code, Runs autonomously | 2 September 2026 |
| Letta | Developers and researchers who specifically need an agent whose memory, skills and identity genuinely persist and evolve across long-running sessions, rather than reset on every call. | Free, then $20 a month source | Reviews code, Runs autonomously | 2 September 2026 |
| Aider | Developers who want free, model-agnostic AI pair programming in their terminal | Free source | Reviews code, Runs autonomously | 27 October 2026 |
| Devin | Engineering teams offloading well-scoped migration tasks without adding headcount | Free, then $20 a month source | Reviews code, Runs autonomously | 2 September 2026 |
| CodeRabbit | Engineering teams, using a coding agent or writing code by hand, that want automatic, consistent PR review plus triage, explanation and continuous security across GitHub, GitLab, Bitbucket or Azure DevOps before a human reviewer looks at it. | From $30 a seat a month source | Reviews code, Claude | 15 September 2026 |
“About” figures are converted at the European Central Bank rate of 30 October 2026.
Closest alternatives to Google Antigravity CLI
The ones people open most here come first, then the closest matches. How we check
Where Google Antigravity CLI falls short: Not yet open source. No LICENSE file in its public GitHub repo, unlike the Apache-2.0 Gemini CLI it replaces, and Google has not confirmed whether that will change.
- From $20 a month
Droid coding agents that run in the desktop app, CLI, IDEs, CI and Factory-managed cloud computers.
Why it's on this listReviews code: Yes/review reviews branches, commits or uncommitted diffs locally; a CI workflow reviews pull requests.
Watch forNo free tier or trial — the cheapest plan is $20/month.
- From Free
JetBrains coding agent for the terminal, JetBrains IDEs and CI, running on hosted or your own model keys.
Why it's on this listReviews code: YesA separate read-only review agent reviews diffs someone else wrote, comparing a branch against main or a named revision, and it also runs unattended on GitHub pull requests.
Watch forCredit-based pricing shared across all JetBrains AI features makes the effective monthly cost of regular agentic use harder to predict than a flat subscription.
- From $5 a month
Meta's terminal and CI coding agent, built on the Muse Spark model.
Why it's on this listRuns autonomously: YesA headless run takes one prompt to completion with approvals disabled, and session goals keep the runtime queueing follow-up work until the objective is met.
Watch forThree observer agents (memory, skill, goal) run by default and add their own billed model calls on top of the main session, switchable in settings.json under runtime_capabilities.
The rest of the shortlist
- From Free
OpenCode
Open source AI coding agent for the terminal, desktop, IDE and browser, with any LLM provider.
Watch for: The web UI's server-URL-override feature and local HTTP server have a real, disclosed 2026 security history (two now-patched advisories), so running it on a shared or untrusted network needs care.
- From Free
Cursor
Coding agent in a desktop editor, terminal CLI, cloud VMs and CI, priced per seat plus token usage.
Watch for: No first-class headless or CI mode. Cursor is an interactive editor with a CLI and background agents, not a scriptable terminal agent in the same mould as Claude Code or Codex CLI.
- From Free
Letta
Stateful agent harness, cloud and SDK for agents with persistent, git-versioned memory.
Watch for: Smaller ecosystem and community than LangChain, LlamaIndex or Microsoft AutoGen.
- From Free
Aider
Open-source terminal AI pair programmer that edits your local git repo.
Watch for: Usage numbers like 44K GitHub stars, 6.8M installs, 15B tokens/week and the 88% 'Singularity' metric are self-reported on aider.chat; independent verification of these figures was not found.
- From Free
Devin
Cloud AI software engineer that takes a ticket, works in its own VM, and opens a pull request.
Watch for: Independent real-world testing has found success rates around 15% on a 20-task sample, well below the roughly 45.8% Devin 2.0 reports on SWE-bench Verified, so performance varies significantly by task type and spec quality.
- From $30 a seat a month
CodeRabbit
AI code review across pull requests, IDE and CLI, with agentic fixes, pre-merge checks and security review.
Watch for: G2 reviewers note it can generate comments they consider unnecessary or low-value, adding triage overhead rather than pure time savings.
Compare Google Antigravity CLI with the shortlist
Compare alternatives to Google Antigravity CLI
The digest
Which agents actually ship. New agents and articles, by email, at most once a week.
Questions buyers ask
What are the best alternatives to Google Antigravity CLI?
Factory, Junie and Muse Code are the closest. They share the most of Google Antigravity CLI's features.
What is the cheapest alternative to Google Antigravity CLI?
6 of the 9 have a free plan: Junie, OpenCode, Cursor, Letta and Aider and 1 more. The lowest paid plan is Muse Code, from $5 a month. Price checked on 28 October 2026.
How much do Google Antigravity CLI alternatives cost?
Entry plans run from $5 to $30 a month, and half cost $20 or less.
When were these prices checked?
Between 21 October 2026 and 1 November 2026, each read on the maker's own pricing page.
Sources and method
Closest first: most of Google Antigravity CLI's features, then the fewest gaps. How we check
Every price here was read on the maker's own pricing page.
- Google Antigravity CLI: antigravity.google/pricing, checked 30 October 2026
- Factory: factory.com/pricing, checked 24 October 2026
- Junie: jetbrains.com/store/ai, checked 1 November 2026
- Muse Code: dev.meta.ai/products/muse-code, checked 28 October 2026
- OpenCode: opencode.ai/v2/docs, checked 21 October 2026
- Cursor: cursor.com/pricing, checked 31 October 2026
- Letta: docs.letta.com/pricing, checked 1 November 2026
- Aider: aider.chat/docs/faq.html, checked 27 October 2026
- Devin: devin.ai/pricing, checked 24 October 2026
- CodeRabbit: coderabbit.ai/pricing, checked 30 October 2026
What AI answers name as Google Antigravity CLI alternatives
We asked for Google Antigravity CLI alternatives and counted the agents we list in each answer.
theagentsindex.com · 1 answer from Perplexity, collected 13 October 2026.
What changed in the index
Agents we’ve just listed and every plan whose price changed.