8 alternatives
8 Gemini CLI alternatives (2026)
The closest alternatives to Gemini CLI in October 2026 are OpenCode, Muse Code and Aider.
8 agents compared · entry plans $5 to $20 a month · 6 with a free plan · prices checked 2 September–24 October 2026
Reviewed by The Agents Index editorial team.
Gemini CLI and its alternatives at a glance
| Agent | Best for | Starts at | Better than Gemini CLI at | Checked |
|---|---|---|---|---|
| Gemini CLI | developers who want an open-source terminal agent on their own Gemini key | Free source | 24 October 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/month source | Runs autonomously, Claude | 21 October 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/month source | Runs autonomously, Pooled budget | 20 September 2026 |
| Aider | Developers who want free, model-agnostic AI pair programming in their terminal | Free source | Claude, GPT | 30 September 2026 |
| 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/seat/month source | Claude, GPT | 22 October 2026 |
| Claude Code | Developers and teams who want a terminal-native, scriptable agent that composes with CI and real engineering workflows. | From $20/month source | Runs autonomously, Claude | 2 September 2026 |
| zot | Developers who want a fast, free, Go-native coding-agent harness with real session-branching control and are comfortable running fast-moving, self-described "beta forever" software from an independent maintainer. | Free source | Runs autonomously, Claude | 28 September 2026 |
| Codex CLI | Developers who already pay for a ChatGPT plan and want a terminal-native agent with granular, inspectable sandbox/permission controls across CLI, desktop and IDE surfaces. | Free, then $20/month source | Runs autonomously, GPT | 2 September 2026 |
| GitHub Copilot CLI | developers who live in the terminal and track work in GitHub issues and PRs | Free, then $10/month source | Ships it, Claude | 24 October 2026 |
Shortlist
Closest alternatives to Gemini CLI
The ones people open most here come first, then the closest matches. How we rank
- 01
OpenCode
Open source AI coding agent for the terminal, desktop, IDE and browser, with any LLM provider.
From FreeWhy it's on this listRuns autonomously · YesAn auto-approve mode clears every permission prompt that is not explicitly denied, and non-interactive runs plus scheduled GitHub workflows execute with no one watching.Source ↗
Where it improves on Gemini CLI
- +Claude · YesClaude models are available both through an Anthropic API key and through the vendor's own gateway, and a Claude subscription can be connected directly.Source ↗
- +GPT · YesGPT models are listed on the vendor's own gateway with per-token prices, and a ChatGPT Plus or Pro login can be used instead of an API key.Source ↗
Trade-offs against Gemini CLI
- −Whole-codebase work · PartlyBuilt for multi-step work across a repository through subagents and LSP loading, but the docs describe no repository-wide index or migration guarantee, so scale rests on agent orchestration.Source ↗
- 02
Muse Code
Meta's terminal and CI coding agent, built on the Muse Spark model.
From $5/monthWhy 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.Source ↗
Where it improves on Gemini CLI
- +Pooled budget · YesRate and token quotas are shared across the whole team rather than allocated per key, so multiple developers draw on one pool on pay-as-you-go.Source ↗
- +Opt out of training · YesStandard-tier models are contractually excluded from training, and the discounted contributor models that do train on your content are opt-in by model id and can be left behind by upgrading.Source ↗
Trade-offs against Gemini CLI
- −Whole-codebase work · PartlyIt splits a large job across parallel subagents with optional Git worktree isolation, which fits a repository-wide migration, but the vendor documents no repository indexing and caps a tree at eight concurrent agents by default.Source ↗
- −In your editor · NoThe vendor describes exactly two run surfaces, interactive terminal and headless, with no editor or IDE extension mentioned anywhere in the Muse Code documentation set.Source ↗
- −Self-hosted · NoThe binary runs locally but every turn calls Meta's hosted model and refuses to start without a Meta credential, so inference cannot be run on your own infrastructure.Source ↗
- 03
Aider
Open-source terminal AI pair programmer that edits files in your local git repo and commits the changes.
From FreeWhy it's on this listClaude · YesAnthropic Claude is named as one of the models aider works best with, and the quick-start shows launching it with an Anthropic key.Source ↗
Where it improves on Gemini CLI
- +GPT · YesOpenAI models are listed among the best-supported engines and have their own provider page, with the entry command shown using an OpenAI key.Source ↗
- +Open models · YesLocal open-weight models are explicitly supported through Ollama, LM Studio and any OpenAI-compatible endpoint, so inference can stay on your own hardware.Source ↗
Trade-offs against Gemini CLI
- −Whole-codebase work · PartlyA ranked map of the whole git repo gives it repository-wide context, but the vendor warns performance is not optimised for very large monorepos and only one repo can be open at a time.Source ↗
- −Ships it · NoThe documented end of the loop is a git commit in your local repo; no page on the site describes deploying, pushing a release or publishing to an environment.Source ↗
- −Multi-agent · PartlyArchitect mode splits one task across two model roles, an architect that proposes and an editor that writes the edits, which is role separation rather than several agents coordinating freely.Source ↗
- 04
Google Antigravity CLI
Terminal agent (agy) that runs Google Antigravity coding agents and parallel subagents.
From FreeWhy it's on this listClaude · PartlyClaude Opus and Sonnet 5.5 are selectable, but only on paid Google AI Pro, Ultra or Enterprise; the free tier's Claude 4.6 entries are flagged for removal.Source ↗
Where it improves on Gemini CLI
- +GPT · PartlyNo OpenAI GPT model is offered; the only GPT-named entry is the open-weight GPT-OSS-120b, which the table marks for removal and excludes from Enterprise.Source ↗
- +Open models · PartlyOne open-weight model, GPT-OSS-120b, is selectable on consumer plans, and the same table dates its removal, leaving no standing open-weight option.Source ↗
Trade-offs against Gemini CLI
- −Agent permissions · PartlyA three-list allow/ask/deny engine governs files, commands, URLs and MCP tools, but unconfigured actions default to asking, so broad autonomy requires rules you write yourself.Source ↗
- −In your editor · NoThis product is the terminal surface by definition; editor use is sold as separate Antigravity IDE extensions rather than a feature of the CLI.Source ↗
- −Self-hosted · NoThe binary runs locally but inference does not: the vendor states plainly that no bring-your-own-endpoint option exists, so model traffic leaves for Google endpoints.Source ↗
- 05
Claude Code
Agentic coding tool from Anthropic that edits your codebase, runs commands, and opens pull requests.
From $20/monthWhy it's on this listRuns autonomously · YesAuto mode has a classifier approve tool calls instead of a person; routines and background sessions run unattended, including in the cloud.Source ↗
Where it improves on Gemini CLI
Trade-offs against Gemini CLI
- −Self-hosted · PartlyThe CLI executes on your own machine, and cloud sessions can run on your runners in public beta on Team and Enterprise; inference always goes to Anthropic or a cloud provider.Source ↗
- −Open source · NoThe vendor's own repository carries an all-rights-reserved licence; the public repo holds plugins, docs and the issue tracker, not the CLI source.Source ↗
- −Free tier · NoThe $0 Free Claude plan does not include Claude Code at all: the pricing page's own plan comparison marks the Claude Code row No for Free and Yes from Pro upward, and the FAQ says it is included in all paid plans, so the cheapest way in is the $20 monthly Pro subscription rather than a standing free tier or a published trial.Source ↗
- 06
zot
Single-binary terminal coding agent harness in Go, with 30+ model providers and any-language extensions.
From FreeWhy it's on this listRuns autonomously · YesConfirmation is opt-in rather than default, and the headless modes deliberately run tools without asking so pipelines complete unattended, bounded only by a step cap.Source ↗
Where it improves on Gemini CLI
- +Claude · YesAnthropic is a first-class provider reachable either with an API key or by logging in with an existing Claude Pro or Max subscription through the OAuth flow.Source ↗
- +GPT · YesOpenAI is supported through both the Chat Completions and Responses APIs with a key, and through a ChatGPT Plus or Pro subscription via the Codex login flow.Source ↗
Trade-offs against Gemini CLI
- −Debugs and fixes · PartlyNo dedicated debugging feature; the vendor names failure investigation only as an example of a task you can hand a background sub-agent, which then edits the same working directory.Source ↗
- −Whole-codebase work · PartlyIt works across a whole working directory with recursive glob search and a canned whole-project reading pass, but there is no repository index; large work depends on the model window and automatic compaction.Source ↗
- −Agent permissions · PartlyBy default the agent acts without asking; per-call confirmation is a flag you must pass, it only exists in the interactive TUI, and the jail sandbox is described as a guardrail rather than a boundary.Source ↗
- 07
Codex CLI
OpenAI's terminal coding agent for inspecting, editing and running repository code from the shell.
From FreeWhy it's on this listRuns autonomously · YesApproval prompts can be switched off entirely, including a no-sandbox full-access mode.Source ↗
Where it improves on Gemini CLI
Trade-offs against Gemini CLI
- −Whole-codebase work · PartlyDocumented for repository-wide exploration and multi-step plans; the vendor states no repo-wide migration guarantee.Source ↗
- −Self-hosted · PartlyThe agent binary runs on your machine or runner; inference is OpenAI-hosted unless you route it through your own AWS Bedrock account.Source ↗
- 08
GitHub Copilot CLI
GitHub's agentic coding CLI that plans, edits, runs code and works with issues and pull requests.
From FreeWhy it's on this listShips it · YesIt goes past the diff: it commits locally, opens pull requests on GitHub.com on your behalf, and can merge or close them.Source ↗
Where it improves on Gemini CLI
Trade-offs against Gemini CLI
- −Self-hosted · NoThe agent is a client for GitHub's hosted service and GitHub states Copilot is not available on its self-managed server product.Source ↗
What to watch for
- OpenCodeThe 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.
- Muse CodeThree 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.
- AiderUsage 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.
- Google Antigravity CLINot 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.
- Claude CodeTerminal-first. There is no full graphical editor for those who prefer point-and-click.
- zotNo GUI, terminal-first by design, unlike GUI-based rivals such as Juggler.
- Codex CLIFree-tier access is explicitly limited, regular use effectively requires at least a $20/month Plus plan or a separate API key.
Side by side
Compare Gemini CLI with the shortlist
Compare alternatives to Gemini CLI
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Which agents actually ship. New agents and articles, by email, at most once a week.
Questions buyers ask
What are the best alternatives to Gemini CLI?
OpenCode, Muse Code and Aider are the closest. They share the most of Gemini CLI's features.
What is the cheapest alternative to Gemini CLI?
OpenCode, Aider and Google Antigravity CLI and 3 more have a free plan. The lowest paid plan is Muse Code, from $5/month. Price checked on 20 September 2026.
Which agents here have a free plan?
6 of the 8: OpenCode, Aider, Google Antigravity CLI, zot and Codex CLI and 1 more.
When were these prices checked?
Between 2 September 2026 and 24 October 2026, each read on the maker's own pricing page.
Sources and method
Closest first: most of Gemini CLI's features, then the fewest gaps. How we rank
Every price here was read on the maker's own pricing page.
- Gemini CLI: geminicli.com/docs/resources/quota-and-pricing, checked 24 October 2026
- OpenCode: opencode.ai/v2/docs, checked 21 October 2026
- Muse Code: dev.meta.ai/lp/muse-code, checked 20 September 2026
- Aider: aider.chat/docs/faq.html, checked 30 September 2026
- Google Antigravity CLI: antigravity.google/pricing, checked 22 October 2026
- Claude Code: claude.com/pricing, checked 24 October 2026
- zot: github.com/patriceckhart/zot/blob/main/LICENSE, checked 28 September 2026
- Codex CLI: learn.chatgpt.com/docs/pricing, checked 2 September 2026
- GitHub Copilot CLI: github.com/features/copilot/plans, checked 24 October 2026
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Last issue: Devin vs Claude Code: Which Should You Pick? · 13 October 2026