# Antigravity CLI vs T3 Code (slim)

> Antigravity CLI scores 54.7 (C) to T3 Code's 51.9 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.md (~6,050 tokens) · this version ~2,230 tokens · JSON https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code.json · canonical https://www.anchorterminal.com/compare/antigravity-cli-vs-t3-code
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-07
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Antigravity CLI scores 54.7 (C) on agent readiness against T3 Code's 51.9 (D), and leads in 4 of 7 scored categories. T3 Code leads on payments & pricing and maintenance & community. Both do agent harnesses.

- Antigravity CLI: C 54.7, rank #894 of 1486 · https://www.anchorterminal.com/tools/antigravity-cli.min.md
- T3 Code: D 51.9, rank #1002 of 1486 · https://www.anchorterminal.com/tools/t3-code.min.md
- Antigravity CLI, 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 55; Agent ergonomics, 78 against 60; Security & auth, 53 against 35.
- T3 Code, good for Developers who want one app, including on their phone, to drive several coding agents they already pay for. Ahead on Payments & pricing, 60 against 30; Maintenance & community, 75 against 68. Also No key needed to call it; Open source; No incidents deducted, where Antigravity CLI loses 3 points for them.

| Category | Antigravity CLI | T3 Code |
| --- | --- | --- |
| Reliability (16%) | 43 | 43 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 55 |
| Agent ergonomics (13%) | 78 | 60 |
| Security & auth (14%) | 53 | 35 |
| Payments & pricing (10%) | 30 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 68 | 75 |
| Transparency & trust (7%) | 55 | 51 |

| Fact (where they differ) | Antigravity CLI | T3 Code |
| --- | --- | --- |
| Vendor | Google | T3 Tools Inc. |
| Auth | OAuth or key | None |
| Pricing | Freemium | Free |
| 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 |
| llms.txt | yes | no |
| Last release | 2026-10-30 | 2026-11-06 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | 2026-10-01 | no document linked |
| Customer content may train models | yes, with an opt-out | not read yet |
| Terms restrict automated access | not found in the text | not read yet |
| Terms restrict benchmarking | not found in the text | not read yet |
| Terms or service can change without notice | not found in the text | not read yet |
| Arbitration or class-action waiver | not found in the text | not read yet |

Why the edge:
- Payments & pricing, T3 Code +30: Antigravity CLI 30 (Harness reading of the published rubric. No payment protocol in the docs, the pricing page or the plans page (0). Plan prices are public without a login, with a $0 individual plan and Gemini Enterprise Standard or Plus from $30 a seat a month, and Google AI Pro at $20 and Ultra at $100 or $200 a month per Google's 19 May 2026 post. Overages draw on AI credits at Gemini Enterprise consumption rates, which were not read, so this is plan-level pricing (10). The pricing page lists the $0 plan as needing no subscription, and none of the pages read asks for a payment method, but the account flow was not tested (20). Sign-in is a browser flow with a Google account, or a Gemini API key set by hand, and the CLI won't start unauthenticated (0). 0+10+20+0 = 30.); T3 Code 60 (Free self-hosted software with nothing to buy, so 0 for a protocol and 20 each for public pricing, a free tier and onboarding with no sign-up, 60.)
- Schema & documentation, Antigravity CLI +23: Antigravity CLI 78 (Framework reading. No published JSON Schema for settings.json, mcp_config.json or hooks.json was found, although the docs type each key (10). llms.txt at antigravity.google/llms.txt, and every docs page has a Markdown copy (10). Pages say when to use each permission preset and execution mode, what each allows and when the sandbox applies (15). Presets, modes, output formats, status values and effort levels are enumerated (13). The headless page documents the output envelope, the status values and exit codes, with a jq example (15). A dated changelog on the docs site and versioned release notes and tags in the repository (15). 10+10+15+13+15+15 = 78.); T3 Code 55 (Harness reading. User docs in the repository (managed policy, handoffs, providers, telemetry), AGENTS.md for contributors, a server other clients connect to (55).)
- Agent ergonomics, Antigravity CLI +18: Antigravity CLI 78 (Framework reading, adapted to a harness driven by a pipeline. MCP tools can be allowed or refused by server and tool, and a 20,000-token budget for user rules stops large rule sets from crowding out skills and MCP tools (16). No turn or spend cap appears in the flag reference, and `--print-timeout` sets a wall-clock limit only, with no limit by default (10). The JSON envelope carries a status field and token usage, and since 1.4.11 a `finished_reason` field says why a turn ended early (16). Exit codes are documented, but a tool soft-denied in headless mode still exits 0 (14). `--continue` and `--conversation` resume earlier runs (14). A Python SDK on PyPI, which is a separate package, and no second SDK language for the CLI (8). 16+10+16+14+14+8 = 78.); T3 Code 60 (Harness reading. Remote control from phone or browser, portable handoffs between providers and managed policies for teams (60).)
- Security & auth, Antigravity CLI +18: Antigravity CLI 53 (Framework reading (credentials and telemetry defaults, approvals and sandboxing, guardrails, audit, security programme), five lines. Credentials are a Google account sign-in kept in the operating system keyring, or a Gemini API key in settings.json. The README says using the CLI allows Google to collect Interactions until the user opts out (10). Since 1.3.5 on macOS and Linux and 1.4.4 on Windows 11 24H2 the default for personal accounts is Auto mode, which runs commands in the terminal sandbox, hides ~/.ssh, .env and, since 1.4.6, ~/.docker and ~/.kube, blocks network access outside approved domains, and has a separate agent review commands that leave the sandbox. Auto approves file edits and safe commands without asking, Turbo turns the sandbox off, and business accounts start in Default (18). Hooks run before and after tool calls and can block one, and since 1.4.11 a PreInvocation hook can stop a turn. No documented defence against prompt injection in fetched content was found (7). The CLI log records model resolution, and approvals show in the conversation, but no exportable audit log was found (10). google.com has a valid security.txt with reports to g.co/vulnz (per the 10 October check), antigravity.google serves none, no CLI advisory appears in the changelog, and NVD returns no CVE for Antigravity on 4 November. The repository's advisory page couldn't be read (8). 10+18+7+10+8 = 53.); T3 Code 35 (Harness reading. Product usage events go by default to ingest.t3.codes and PostHog, with hashed identifiers for your T3 Connect, OpenAI and Claude accounts, and relay traces to Axiom, which can include machine names and error text. Off with T3CODE_TELEMETRY_ENABLED=false or a managed policy. Disclosed in docs/user/telemetry.md, not the README (10 of 30). Permission modes and managed policies (12 of 20). No prompt-injection guidance (5). No audit log (5). No security policy file found (3). 10 + 12 + 5 + 5 + 3 = 35.)
- Maintenance & community, T3 Code +7: Antigravity CLI 68 (1.4.12 on 30 October 2026, marked Latest in the docs changelog, 5 days before this check (30). 56 tagged releases from 1.1.11 (6 August) to 1.4.12, each with a changelog entry; 1.5.0 is tagged and in the repository changelog on 4 November but not yet in the docs changelog, so it isn't counted (20). Responsiveness rests on a public changelog, a community forum linked from the terms and the GitHub repository, but no replies could be read (8). The google-antigravity Python SDK is a separate package and no SDK for the CLI itself was found; PyPI couldn't be read on 4 November, so the line rests on the 10 October reading (10). No public CI or dependency list for the CLI, since the source is not published (0). 30+20+8+10+0 = 68.); T3 Code 75 (Commits and nightly tags on 6 November 2026 (30). More than three releases in 90 days (20). GitHub issues and pull requests weren't read (GitHub's pages refuse these sessions), so that line is scored absent (0). Current official apps and install script (15). CI on push (10). 30 + 20 + 0 + 15 + 10 = 75.)