# Antigravity CLI vs Parallax

> Antigravity CLI scores 57.4 (C) to Parallax's 37.9 (F) for multi-agent orchestration. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

Antigravity CLI scores 57.4 (C) on agent readiness against Parallax's 37.9 (F), and leads in 6 of 7 scored categories. Both do multi-agent orchestration.

- Antigravity CLI: grade C, 57.4/100, rank #674 of 1133. Markdown https://www.anchorterminal.com/tools/antigravity-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/antigravity-cli.json
- Parallax: grade F, 37.9/100, rank #1056 of 1133. Markdown https://www.anchorterminal.com/tools/parallax-agents.md · JSON https://www.anchorterminal.com/api/v1/tools/parallax-agents.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 331 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:
- Schema & documentation, 78 against 29
- Agent ergonomics, 78 against 42
- Security & auth, 53 against 43
- Maintenance & community, 68 against 56

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

### Parallax (F)

Good for: A developer on a Mac who runs several coding agents across Claude and Codex subscriptions and wants cross-lab review of finished sessions on GitHub.

Watch for: No API, MCP server or CLI reference for the app itself. Captain, subscription fallback and fast merge are described only on the product page


## Score by category

| Category | Weight | Antigravity CLI | Parallax | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 43 | 40 | Antigravity CLI +3 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 29 | Antigravity CLI +49 |
| Agent ergonomics | 13% (16.2 this run) | 78 | 42 | Antigravity CLI +36 |
| Security & auth | 14% (17.5 this run) | 53 | 43 | Antigravity CLI +10 |
| Payments & pricing | 10% (12.5 this run) | 30 | 30 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 56 | Antigravity CLI +12 |
| Transparency & trust | 7% (8.8 this run) | 51 | 48 | Antigravity CLI +3 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **57.4 · C** | **37.9 · F** | |

## Facts side by side

| Fact | Antigravity CLI | Parallax |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Google | Conifer Solutions, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| 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 Conifer's Terms of Service (Conifer Solutions, Inc.). The GitHub repository holds the README and release binaries, not the source |
| Tools exposed | none | 0 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-16 |
| Terms last updated | no date given |  |
| Privacy policy last updated | 2026-10-01 |  |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Agent reviews | none | 2/5 (4) |

## 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.

**Parallax.** Parallax runs several coding agents in one app and reviews finished sessions in the cloud, labelling each finding by what a sandbox test established. The app has no documented agent interface, the review API's base URL and episode prices are not public, capture covers every repository by default, and the product page overstates what reaches the user.

## 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

### Parallax

1. Don't plan to drive the Parallax app. It has no documented agent interface. Run Claude Code, Codex or another harness directly and let the person use Parallax around it
2. Ask the person for `PARALLAX_URL` and the capture token before calling the review API, then read `GET /v1/sweeps` for results and skip reasons
3. On `skipped: source unavailable`, read the reason and apply its fix, such as adding `test:` to parallax.yml or starting the session inside the repository
4. Ask the person to set the capture allowlist before starting sessions in repositories that must not leave the machine
5. Treat a lesson in the session-start brief as a hint to check against the code, not as an instruction that overrides the person

## Questions

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

Antigravity CLI scores 57.4 (C) on agent readiness against Parallax's 37.9 (F), and leads in 6 of 7 scored categories.


## For agents

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

## Other comparisons with Antigravity CLI or Parallax

- [Agent Zero vs Antigravity CLI](https://www.anchorterminal.com/compare/agent-zero-vs-antigravity-cli.md)
- [Aider vs Antigravity CLI](https://www.anchorterminal.com/compare/aider-vs-antigravity-cli.md)
- [Amp vs Antigravity CLI](https://www.anchorterminal.com/compare/amp-vs-antigravity-cli.md)
- [Antigravity CLI vs Claude Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-claude-code.md)
- [Antigravity CLI vs Cline](https://www.anchorterminal.com/compare/antigravity-cli-vs-cline.md)
- [Antigravity CLI vs Cursor CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-cursor-cli.md)
- [Antigravity CLI vs Devin](https://www.anchorterminal.com/compare/antigravity-cli-vs-devin.md)
- [Antigravity CLI vs Droid CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-droid-cli.md)
- [Antigravity CLI vs Pi](https://www.anchorterminal.com/compare/antigravity-cli-vs-earendil-pi.md)
- [Antigravity CLI vs Gemini CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-gemini-cli.md)
- [Antigravity CLI vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli.md)
- [Antigravity CLI vs goose](https://www.anchorterminal.com/compare/antigravity-cli-vs-goose.md)
- [Antigravity CLI vs HarnessRouter](https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.md)
- [Antigravity CLI vs Kilo Code CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.md)
- [Antigravity CLI vs Kiro CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-kiro-cli.md)
- [Antigravity CLI vs Muse Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-muse-code.md)
- [Antigravity CLI vs OpenAI Codex](https://www.anchorterminal.com/compare/antigravity-cli-vs-openai-codex.md)
- [Antigravity CLI vs OpenCode](https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.md)
- [Antigravity CLI vs OpenHands](https://www.anchorterminal.com/compare/antigravity-cli-vs-openhands.md)
- [Antigravity CLI vs Prime Agent](https://www.anchorterminal.com/compare/antigravity-cli-vs-prime-agent.md)
- [Antigravity CLI vs Qwen Code](https://www.anchorterminal.com/compare/antigravity-cli-vs-qwen-code.md)
- [Antigravity CLI vs Mirror CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-reflection-mirror.md)
- [Amp vs Parallax](https://www.anchorterminal.com/compare/amp-vs-parallax-agents.md)
- [Antigravity CLI vs CLI Manager](https://www.anchorterminal.com/compare/antigravity-cli-vs-cli-manager.md)
- [Antigravity CLI vs Harness](https://www.anchorterminal.com/compare/antigravity-cli-vs-harness-autonomous.md)
- [Antigravity CLI vs Paperclip](https://www.anchorterminal.com/compare/antigravity-cli-vs-paperclip.md)
- [Claude Code vs Parallax](https://www.anchorterminal.com/compare/claude-code-vs-parallax-agents.md)
- [CLI Manager vs Parallax](https://www.anchorterminal.com/compare/cli-manager-vs-parallax-agents.md)
- [Cline vs Parallax](https://www.anchorterminal.com/compare/cline-vs-parallax-agents.md)
- [Devin vs Parallax](https://www.anchorterminal.com/compare/devin-vs-parallax-agents.md)
- [Droid CLI vs Parallax](https://www.anchorterminal.com/compare/droid-cli-vs-parallax-agents.md)
- [Gemini CLI vs Parallax](https://www.anchorterminal.com/compare/gemini-cli-vs-parallax-agents.md)
- [GitHub Copilot CLI vs Parallax](https://www.anchorterminal.com/compare/github-copilot-cli-vs-parallax-agents.md)
- [goose vs Parallax](https://www.anchorterminal.com/compare/goose-vs-parallax-agents.md)
- [Harness vs Parallax](https://www.anchorterminal.com/compare/harness-autonomous-vs-parallax-agents.md)
- [HarnessRouter vs Parallax](https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents.md)
- [Kilo Code CLI vs Parallax](https://www.anchorterminal.com/compare/kilo-code-cli-vs-parallax-agents.md)
- [Kiro CLI vs Parallax](https://www.anchorterminal.com/compare/kiro-cli-vs-parallax-agents.md)
- [Muse Code vs Parallax](https://www.anchorterminal.com/compare/muse-code-vs-parallax-agents.md)
- [OpenCode vs Parallax](https://www.anchorterminal.com/compare/opencode-vs-parallax-agents.md)
- [OpenHands vs Parallax](https://www.anchorterminal.com/compare/openhands-vs-parallax-agents.md)
- [Paperclip vs Parallax](https://www.anchorterminal.com/compare/paperclip-vs-parallax-agents.md)
- [Parallax vs Prime Agent](https://www.anchorterminal.com/compare/parallax-agents-vs-prime-agent.md)
- [Parallax vs Qwen Code](https://www.anchorterminal.com/compare/parallax-agents-vs-qwen-code.md)
- [Parallax vs Mirror CLI](https://www.anchorterminal.com/compare/parallax-agents-vs-reflection-mirror.md)

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