Free
$0
60 req/min, 1,000 req/day with personal Google account. Includes Gemini 3 models with 1M token context.
Gemini CLI
Google's open-source AI agent for the terminal — powered by Gemini 2.5 Pro.
Gemini CLI is Google's open-source agentic terminal agent powered by Gemini 2.5 Pro. It brings a full AI agent directly into the shell: reads and edits local files, runs shell commands, searches the web via Google Search grounding, and supports MCP. Free for personal use with 1,000 requests/day. ⚠️ Deprecated May 2026 — EOS June 18, 2026. Successor: Antigravity CLI.
+Pros
- Free for personal use with 1,000 req/day — no credit card required
- 1M-token context window — can ingest an entire codebase in one shot
- Google Search grounding — web-aware responses without a separate tool
- Apache 2.0 open source — 60K+ GitHub stars, forkable and self-hostable
- MCP-compatible — extensible with external tools and APIs
−Cons
- ⚠️ Deprecated: stops working June 18, 2026 — do not invest for new projects
- Successor Antigravity CLI not yet at full feature parity at time of writing
- No persistent memory across sessions by default
- Less autonomous than Cursor, Claude Code, or Devin on complex multi-step tasks
Pricing
Code Assist License
Paid
Higher rate limits via Google Cloud Project with Code Assist license
Vertex AI
Usage-based
Enterprise pricing via Google Cloud Vertex AI
Gemini CLI is Google's open-source AI agent for the terminal, launched at Google I/O on June 24, 2025. It embeds Gemini 2.5 Pro directly into the shell: the agent reads and edits local files, executes shell commands, browses the web with Google Search grounding, and connects to external tools via MCP. The standout feature was a 1-million-token context window — large enough to hold an entire mid-size codebase — offered free for personal use via the Gemini API free tier (1,000 requests/day).
⚠️ On May 19, 2026, Google announced Gemini CLI will stop working on June 18, 2026, replaced by Antigravity CLI — the terminal layer of the Antigravity agentic development platform. The GitHub repository (60K+ stars) will remain public. Existing users are advised to migrate to Antigravity CLI, which ships the same Gemini models with a richer parallel-agent architecture.
Key Features
• ⚠️ Deprecated: EOS June 18, 2026 — successor is Antigravity CLI
• Gemini 2.5 Pro in terminal with 1M-token context window
• Google Search grounding for web-aware responses
• Local file editing and shell command execution
• MCP support: connect external tools and APIs
• Free tier: 1,000 requests/day with personal Google account
• GitHub Actions integration for CI/CD agent workflows
• Apache 2.0 open source · 60K+ GitHub stars
• Cross-platform: macOS, Windows, Linux
Version History
Merged Auto modes into single Auto mode; first-wins agent registration; new agent-tui/tui-tester skills; context files append instead of replace; sandbox and MCP improvements.
Surgical Code Edits via edit tool; session export and import; adaptive token calculator for accurate content size estimation.
Auto Memory Inbox with canonical-patch contract; Gemma 4 models enabled by default; voice mode wave animations; privacy/compliance UX warnings.
Real-time voice mode with cloud and local backends; secure .env loading with workspace trust enforcement; enhanced shell command validation.
Bundled ripgrep for offline search; GitHub-style colorblind themes; MCP resource tools; prompt-driven four-tier memory management.
Signature Snippet
In the terminal: `gemini` then type 'Read all TypeScript files in this project, find all TODO comments, group them by priority, and write a TODOS.md.' Gemini CLI reads the files, extracts TODOs, reasons about priority, and writes the markdown — all in one turn.More in this Space
Prime Agent (Prime Intellect)
Prime Agent is an open-source (MIT) self-improving coding and research harness by Prime Intellect, built on a Recursive Language Model that runs inside a persistent IPython REPL and a Continual Harness that refines its own state via /refine. It took the same frontier weights from 30.2% to 95.5% on ARC-AGI-3 RHAE Best@1, powered daemon-backed sessions, and ships no hosted offering.
OpenCodeReview (ocr)
OpenCodeReview (ocr) is Alibaba's open-source AI code-review CLI. It reads git diffs and drives an LLM agent through a hybrid architecture where deterministic pipelines handle file selection, rule matching, and comment positioning while the agent does the reasoning. Built on two years of internal use at Alibaba scale, it ships a multi-language ruleset and consumes roughly 1/9 of the tokens of general-purpose agents.
Delta (by Zed)
Multiplayer environment from Zed for coding with agents. Threads unify the agent conversation, the code edits, and human review in one shareable artifact, replacing the branch/PR loop. Built on DeltaDB, a CRDT-based version control layer that records every edit between commits alongside the prompts and reasoning that produced them.