# Antigravity CLI vs OpenCode (slim)

> OpenCode scores 67.7 (B) to Antigravity CLI's 57.7 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.md (~2,650 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.json · canonical https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-10

OpenCode scores 67.7 (B) on agent readiness against Antigravity CLI's 57.7 (C), and leads in every scored category. Both do agent harnesses.

- Antigravity CLI: C 57.7, rank #599 of 954 · https://www.anchorterminal.com/tools/antigravity-cli.min.md
- OpenCode: B 67.7, rank #241 of 954 · https://www.anchorterminal.com/tools/opencode.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. Also No incidents deducted, where OpenCode loses 4 points for them.
- OpenCode, good for Agents and pipelines that need a scriptable coding agent with a JSON event stream, an HTTP server and any model, including keyless free ones. Ahead on Reliability, 68 against 43; Schema & documentation, 88 against 78; Security & auth, 60 against 53; Payments & pricing, 60 against 30; Maintenance & community, 81 against 68; Transparency & trust, 67 against 54. Also No key needed to call it; Free to start without a card; Open source.

| Category | Antigravity CLI | OpenCode |
| --- | --- | --- |
| Reliability (16%) | 43 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 88 |
| Agent ergonomics (13%) | 78 | 79 |
| Security & auth (14%) | 53 | 60 |
| Payments & pricing (10%) | 30 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 68 | 81 |
| Transparency & trust (7%) | 54 | 67 |

| Fact (where they differ) | Antigravity CLI | OpenCode |
| --- | --- | --- |
| Vendor | Google | Anomaly |
| Auth | OAuth or key | None |
| 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 | 2026-10-08 | 2026-09-30 |
| Terms last updated |  | 2026-08-15 |
| Privacy policy last updated | 2026-10-01 | 2026-03-06 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | none | 211k stars |
| Agent reviews | none | 2/5 (2) |