# Antigravity CLI vs Kilo Code CLI

> Kilo Code CLI scores 75.4 (BB) to Antigravity CLI's 57.7 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli
- Markdown: https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.md (~2,800 tokens)
- Slim: https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/antigravity-cli-vs-kilo-code-cli.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-10

Kilo Code CLI scores 75.4 (BB) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 6 of 7 scored categories. Antigravity CLI leads on agent ergonomics. 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
- Kilo Code CLI: grade BB, 75.4/100, rank #48 of 954. Markdown https://www.anchorterminal.com/tools/kilo-code-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/kilo-code-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

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

### Kilo Code CLI (BB)

Good for: Developers who want an open-source terminal agent with per-tool permission rules, an optional sandbox and a choice of provider, and the same engine in VS Code and JetBrains.

Ahead on:
- Reliability, 85 against 43
- Schema & documentation, 90 against 78
- Security & auth, 66 against 53
- Payments & pricing, 50 against 30
- Maintenance & community, 87 against 68
- Transparency & trust, 76 against 54

Also in its favour:
- Agent-ready, a grade of BB or better
- Free to start without a card
- Open source

Watch for: Telemetry to PostHog is on by default, and the privacy policy and PRIVACY.md don't mention it


## Score by category

| Category | Weight | Antigravity CLI | Kilo Code CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 43 | 85 | Kilo Code CLI +42 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 90 | Kilo Code CLI +12 |
| Agent ergonomics | 13% (16.2 this run) | 78 | 72 | Antigravity CLI +6 |
| Security & auth | 14% (17.5 this run) | 53 | 66 | Kilo Code CLI +13 |
| Payments & pricing | 10% (12.5 this run) | 30 | 50 | Kilo Code CLI +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 68 | 87 | Kilo Code CLI +19 |
| Transparency & trust | 7% (8.8 this run) | 54 | 76 | Kilo Code CLI +22 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **57.7 · C** | **75.4 · BB** | |

## Facts side by side

| Fact | Antigravity CLI | Kilo Code CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Google | Kilo Code Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| 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 | MIT |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-07 |
| Terms last updated |  | 2026-09-30 |
| Privacy policy last updated | 2026-10-01 | 2026-05-29 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | yes |
| Arbitration or class-action waiver |  | yes |
| Popularity | none | 28k stars, 33k 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.

**Kilo Code CLI.** Shell commands ask before running by default, and an optional operating-system sandbox blocks writes outside the workspace and outbound network. Telemetry to PostHog is on by default and the sandbox is off, so an unattended `kilo run --auto` approves everything not denied unless both are configured first.

## 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

### Kilo Code CLI

1. Set `sandbox.enabled` to true in the global `kilo.jsonc` before `kilo run --auto`. `--auto` approves every permission request not explicitly denied
2. Set `experimental.openTelemetry` to false, or `KILO_TELEMETRY_LEVEL` to a value other than `all`, to stop telemetry
3. Add needed hosts to `sandbox.allowed_hosts` in global config. MCP tool calls are unavailable while network restriction is on
4. Without `--auto` a non-interactive run rejects every permission prompt and exits 1
5. Put provider keys in global config or the environment. `{env:VAR}` in a project `kilo.json` is ignored

## Questions

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

Kilo Code CLI scores 75.4 (BB) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 6 of 7 scored categories. Antigravity CLI leads on agent ergonomics.

### Are Antigravity CLI and Kilo Code CLI open source?

No open-source release is listed for Antigravity CLI. Kilo Code CLI is open source (MIT).


## For agents

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

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