# Antigravity CLI vs Droid CLI

> Droid CLI scores 59.1 (C) to Antigravity CLI's 57.7 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-10

Droid CLI scores 59.1 (C) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 5 of 7 scored categories. Antigravity CLI leads on agent ergonomics and payments & pricing. Both do agent harnesses.

- Antigravity CLI: grade C, 57.7/100, rank #599 of 954. Markdown https://www.anchorterminal.com/tools/antigravity-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json
- Droid CLI: grade C, 59.1/100, rank #561 of 954. Markdown https://www.anchorterminal.com/tools/droid-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/droid-cli.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 186 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Antigravity CLI (C)

Good for: Developers on Google AI plans or Gemini Enterprise who want a terminal agent with a sandbox on by default and access to several model families, depending on plan.

Ahead on:
- Agent ergonomics, 78 against 72
- Payments & pricing, 30 against 10

Watch for: Closed source. The repository holds the README, changelog and examples, with no source and no licence file

### Droid CLI (C)

Good for: Teams that want a terminal coding agent with tiered autonomy, command rules and an optional sandbox, and that will pay for a Factory plan.

Ahead on:
- Reliability, 49 against 43
- Security & auth, 63 against 53
- Maintenance & community, 79 against 68
- Transparency & trust, 64 against 54

Watch for: No free tier or trial was found. Plans start at $20 a month and included usage is stated only as rolling rate limits without numbers


## Score by category

| Category | Weight | Antigravity CLI | Droid CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 43 | 49 | Droid CLI +6 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 79 | Droid CLI +1 |
| Agent ergonomics | 13% (16.2 this run) | 78 | 72 | Antigravity CLI +6 |
| Security & auth | 14% (17.5 this run) | 53 | 63 | Droid CLI +10 |
| Payments & pricing | 10% (12.5 this run) | 30 | 10 | Antigravity CLI +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 79 | Droid CLI +11 |
| Transparency & trust | 7% (8.8 this run) | 54 | 64 | Droid CLI +10 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **57.7 · C** | **59.1 · C** | |

## Facts side by side

| Fact | Antigravity CLI | Droid CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Google | Factory |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | Proprietary. The repository holds the README, changelog and examples, with no source and no licence file. Use is under the Google Antigravity Additional Terms of Service, the Google Terms of Service and the Privacy Policy | Proprietary, under Factory's Terms and Conditions. The `droid` npm package is marked `UNLICENSED` and the public repository holds documentation only. The Python SDK is Apache-2.0 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-08 |
| Terms last updated |  | 2026-07-14 |
| Privacy policy last updated | 2026-10-01 | 2026-08-20 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | none | 49 stars, 7.8k npm/wk |

## Verdicts

**Antigravity CLI.** Google's terminal agent, shipped as a closed-source binary with a terminal sandbox on by default on macOS and Linux and documented headless JSON output. Interactions are used to improve Google products unless users opt out, and a headless run exits 0 when a tool is denied.

**Droid CLI.** `droid exec` is read-only unless `--auto` raises the autonomy level, with command rules, an optional kernel-enforced sandbox, JSON output and documented exit codes. No free tier, status page or security.txt was found, the source is closed, and usage metrics go to Factory by default.

## Before you call either

### Antigravity CLI

1. Read the `status` field from `--output-format json` and read stderr too. A tool refused for lack of approval still exits 0
2. Pre-approve each shell command and tool a headless run needs with `action(target)` rules under `permissions.allow` in ~/.gemini/antigravity-cli/settings.json, because headless runs cannot ask
3. Export `GEMINI_API_KEY` after setting modelProvider to gemini. The CLI won't start when the key is missing, and setting the variable alone has no effect
4. Turn off Enable Telemetry in the Account settings before running on private repositories if Interactions should not be used for product improvement
5. Set `--print-timeout` explicitly. The docs give a five-minute default, while `agy --help` shows 0s

### Droid CLI

1. Set `FACTORY_API_KEY` (starts `fk-`) from the API keys page in Factory settings for headless runs. Interactive use signs in through a browser
2. Start with `droid exec` and no flags for analysis. Add `--auto low` for edits and `--auto medium` for installs, tests and local commits
3. Use `--output-format json` and read `is_error`, `num_turns` and `session_id`. Treat a non-zero exit code as failure
4. Set `sandbox.enabled` to true before running on untrusted code. In `droid exec` a sandbox violation is denied without a prompt
5. Pin the version in CI with `npm install -g droid@<version>`, or set `FACTORY_DROID_AUTO_UPDATE_ENABLED=false` on standalone installs, which update themselves

## Questions

### Which is better for AI agents, Antigravity CLI or Droid CLI?

Droid CLI scores 59.1 (C) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 5 of 7 scored categories. Antigravity CLI leads on agent ergonomics and payments & pricing.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli.json, and with the fewest tokens: https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "antigravity-cli", "b": "droid-cli"}`. From a terminal: `anchor compare antigravity-cli droid-cli`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json and https://www.anchorterminal.com/api/v1/tools/droid-cli.json

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