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Head to head · Agent harnesses · October 2026 research run

Antigravity CLI vs Mistral Vibe CLI

Mistral Vibe CLI scores 62.9 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 6 of 7 scored categories. Both do agent harnesses.

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Antigravity CLIGoogle · Agent harness C57.4/100#679 of 1146 Mistral Vibe CLIMistral AI · Agent harness B62.9/100#457 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.

Also in its favour

  • No incidents deducted, where Mistral Vibe CLI loses 8 points for them

Watch for

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

Mistral Vibe CLI B

Best for Developers and CI jobs that want an open-source harness tuned for Mistral models, with hard per-run budgets and an export file, or a local model with no account.

Ahead on

  • Reliability, 69 against 43
  • Agent ergonomics, 84 against 78
  • Security & auth, 58 against 53
  • Payments & pricing, 60 against 30
  • Maintenance & community, 75 against 68
  • Transparency & trust, 79 against 51

Also in its favour

  • Free to start without a card
  • Open source

Watch for

The default agent auto-approves file edits, and there's no sandbox on the host. Isolation needs the experimental --agent-socket server or a container

Score by category

CategoryWeight this runAntigravity CLIMistral Vibe CLIEdge
Reliability16%204369Mistral Vibe CLI +26
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27876Antigravity CLI +2
Agent ergonomics13%16.27884Mistral Vibe CLI +6
Security & auth14%17.55358Mistral Vibe CLI +5
Payments & pricing10%12.53060Mistral Vibe CLI +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.86875Mistral Vibe CLI +7
Transparency & trust7%8.85179Mistral Vibe CLI +28
Negative events≤150-8
TotalC 57.4/100B 62.9/100

Facts side by side

FactAntigravity CLIMistral Vibe CLI
KindAgent harnessAgent harness
VendorGoogleMistral 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 PolicyApache-2.0
Read-only variant documentednoyes
llms.txtyesyes
Last release2026-10-082026-10-09
Terms last updatedno date given2026-09-25
Privacy policy last updated2026-10-012026-09-03
Customer content may train modelsyes, with an opt-outyes, with an opt-out
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone5.1k stars, 332k PyPI/wk
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.

Mistral Vibe CLI

Apache-2.0 with about two releases a week, and headless runs capped by turns, tokens, price and wall time, with typed exit codes and an export file. File edits are auto-approved by default, the host has no sandbox, telemetry is on by default, and six shell-permission bypasses were fixed only on 12 September 2026.

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

Mistral Vibe CLI

  1. Pass --agent on every -p run (plan is read-only). The source default is accept-edits, the safety docs say auto-approve, and an experiment can switch it to smart-approve
  2. Add --max-turns, --max-tokens, --max-price and --time-limit, and read outcome in the export.json that --output-dir writes. Exit 3 means a limit or a refusal
  3. Run in a container or behind --agent-socket before using --auto-approve. Vibe has no sandbox of its own on the host
  4. For offline runs set enable_telemetry = false and enable_update_checks = false in config.toml. The docs' enable_auto_update isn't the key the code reads
  5. Use 2.25.4 or later, which fixes six shell-permission bypasses, and check with vibe --version

Questions

Which is better for AI agents, Antigravity CLI or Mistral Vibe CLI?

Mistral Vibe CLI scores 62.9 (B) on agent readiness against Antigravity CLI's 57.4 (C), and leads in 6 of 7 scored categories.

Are Antigravity CLI and Mistral Vibe CLI open source?

No open-source release is listed for Antigravity CLI. Mistral Vibe CLI is open source (Apache-2.0).

Other comparisons with Antigravity CLI or Mistral Vibe CLI

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