Get an audit

Head to head · Agent harnesses · October 2026 research run

Antigravity CLI vs OpenHands

OpenHands scores 70.8 (BB) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 6 of 7 scored categories. Both do agent harnesses.

Best agent harnesses and coding agents · All 186 harnesses comparisons

Antigravity CLIGoogle · Agent harness C57.7/100#599 of 954 OpenHandsAll Hands AI · Agent harness BB70.8/100#142 of 954

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.

Also in its favour

  • No incidents deducted, where OpenHands loses 5 points for them

Watch for

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

OpenHands BB

Best for Teams that want to self-host a coding agent with a web UI, per-conversation Docker sandboxes and scheduled or webhook automations, or embed the agent through a Python SDK and REST API.

Ahead on

  • Reliability, 83 against 43
  • Schema & documentation, 87 against 78
  • Security & auth, 66 against 53
  • Payments & pricing, 60 against 30
  • Maintenance & community, 85 against 68
  • Transparency & trust, 67 against 54

Also in its favour

  • Agent-ready, a grade of BB or better
  • Open source

Watch for

Confirmation mode is off by default in Agent Canvas, and the npm install gives the agent the host's whole filesystem

Score by category

CategoryWeight this runAntigravity CLIOpenHandsEdge
Reliability16%204383OpenHands +40
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27887OpenHands +9
Agent ergonomics13%16.27878even
Security & auth14%17.55366OpenHands +13
Payments & pricing10%12.53060OpenHands +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86885OpenHands +17
Transparency & trust7%8.85467OpenHands +13
Negative events≤150-5
TotalC 57.7/100BB 70.8/100

Facts side by side

FactAntigravity CLIOpenHands
KindAgent harnessAgent harness
VendorGoogleAll Hands AI
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 PolicyMIT (Agent Canvas, SDK, tools and Agent Server). OpenHands Cloud is a hosted service
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-082026-09-30
Terms last updatedno document linked
Privacy policy last updated2026-10-012025-09-03
Customer content may train modelsyesyes
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularitynone90k stars
Agent reviewsnone2.5/5 (2)

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.

OpenHands

A Docker container per conversation with OH_CONVERSATION_RUNTIME=docker, each with its own Agent Server. Confirmation mode is off by default in Agent Canvas, and the npm install gives the agent the host's whole filesystem.

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

OpenHands

  1. Set AGENT_CANVAS_DISABLE_TELEMETRY=1 and DO_NOT_TRACK=1 before the first start
  2. Start Canvas with OH_CONVERSATION_RUNTIME=docker or use the Docker image. The npm install runs the agent on the host
  3. Turn on confirmation mode with a risk threshold. Canvas starts with it off
  4. Use the SDK or the Agent Server API for headless runs. The openhands --headless CLI is no longer maintained
  5. Set filter_tools_regex on the agent to keep unneeded MCP tool definitions out of the context

Questions

Which is better for AI agents, Antigravity CLI or OpenHands?

OpenHands scores 70.8 (BB) on agent readiness against Antigravity CLI's 57.7 (C), and leads in 6 of 7 scored categories.

Are Antigravity CLI and OpenHands open source?

No open-source release is listed for Antigravity CLI. OpenHands is open source (MIT (Agent Canvas, SDK, tools and Agent Server). OpenHands Cloud is a hosted service).

Other comparisons with Antigravity CLI or OpenHands

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report