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Head to head · Agent harnesses · October 2026 research run

Antigravity CLI vs Warp (Warp Agent CLI and the Oz Agent API)

Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 4 of 7 scored categories. Antigravity CLI leads on agent ergonomics and payments & pricing. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Antigravity CLIGoogle · Agent harness C57.4/100#679 of 1146 Warp (Warp Agent CLI and the Oz Agent API)Warp · Agent harness C59.8/100#592 of 1146

Which one, for what

Antigravity CLI C

Best 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 66
  • Payments & pricing, 30 against 20

Watch for

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

Warp (Warp Agent CLI and the Oz Agent API) C

Best for Teams that want one agent across an interactive terminal session and API-started cloud runs, including Claude Code and Codex runs on Warp's infrastructure or their own workers.

Ahead on

  • Reliability, 52 against 43
  • Schema & documentation, 89 against 78
  • Maintenance & community, 84 against 68
  • Transparency & trust, 72 against 51

Also in its favour

  • Open source

Watch for

The warp CLI has no print or headless mode. Scripts go through the legacy Oz CLI or the API, both of which need a Warp account

Score by category

CategoryWeight this runAntigravity CLIWarp (Warp Agent CLI and the Oz Agent API)Edge
Reliability16%204352Warp (Warp Agent CLI and the Oz Agent API) +9
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27889Warp (Warp Agent CLI and the Oz Agent API) +11
Agent ergonomics13%16.27866Antigravity CLI +12
Security & auth14%17.55352Antigravity CLI +1
Payments & pricing10%12.53020Antigravity CLI +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86884Warp (Warp Agent CLI and the Oz Agent API) +16
Transparency & trust7%8.85172Warp (Warp Agent CLI and the Oz Agent API) +21
Negative events≤150-1
TotalC 57.4/100C 59.8/100

Facts side by side

FactAntigravity CLIWarp (Warp Agent CLI and the Oz Agent API)
KindAgent harnessAgent harness
VendorGoogleWarp
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceProprietary. 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 PolicyMixed. The client, including the warp and oz binaries, is AGPL-3.0 with the warpui_core and warpui crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-082026-10-15
Terms last updatedno date given
Privacy policy last updated2026-10-01
Customer content may train modelsyes, with an opt-out
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Agent reviewsnone3.3/5 (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.

Warp (Warp Agent CLI and the Oz Agent API)

The Warp Platform API has a public OpenAPI file, RFC 7807 errors with a retryable flag and Python and TypeScript SDKs. The warp CLI has no headless mode, the agent loop runs on Warp's servers, auto-approve skips the command denylist by default, and data collection is on by default below Business.

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

Warp (Warp Agent CLI and the Oz Agent API)

  1. For unattended work, call POST https://app.warp.dev/api/v1/agent/runs with Authorization: Bearer $WARP_API_KEY. The warp CLI is interactive only
  2. Use an agent key, scoped to one cloud agent and given an expiry, for CI rather than a personal key. Keys are created in the Oz web app or the Warp app
  3. Set auto_approve_bypasses_command_denylist = false under [agents.warp_agent.other] before starting warp --auto-approve
  4. Read code and retryable in error bodies. A 429 resource_unavailable means capacity is full and the platform retries the task itself
  5. Pin a version with WARP_TUI_VERSION at install, or set general.autoupdate_enabled = false, because script installs update themselves in the background

Questions

Which is better for AI agents, Antigravity CLI or Warp (Warp Agent CLI and the Oz Agent API)?

Warp (Warp Agent CLI and the Oz Agent API) scores 59.8 (C) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 4 of 7 scored categories. Antigravity CLI leads on agent ergonomics and payments & pricing.

Are Antigravity CLI and Warp (Warp Agent CLI and the Oz Agent API) open source?

No open-source release is listed for Antigravity CLI. Warp (Warp Agent CLI and the Oz Agent API) is open source (Mixed. The client, including the `warp` and `oz` binaries, is AGPL-3.0 with the `warpui_core` and `warpui` crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0).

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