# Gemini CLI vs Mistral Vibe CLI

> Gemini CLI scores 66.7 (B) to Mistral Vibe CLI's 62.9 (B) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-18

Gemini CLI scores 66.7 (B) on agent readiness against Mistral Vibe CLI's 62.9 (B), and leads in 5 of 7 scored categories. Mistral Vibe CLI leads on agent ergonomics and payments & pricing. Both do agent harnesses.

- Gemini CLI: grade B, 66.7/100, rank #307 of 1146. Markdown https://www.anchorterminal.com/tools/gemini-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/gemini-cli.json
- Mistral Vibe CLI: grade B, 62.9/100, rank #457 of 1146. Markdown https://www.anchorterminal.com/tools/mistral-vibe-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/mistral-vibe-cli.json
- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md
- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### Gemini CLI (B)

Good for: Teams with a paid Gemini API key, Vertex AI credentials or existing Code Assist Standard or Enterprise licences that want an open-source harness with documented headless output.

Ahead on:
- Schema & documentation, 93 against 76
- Security & auth, 67 against 58
- Maintenance & community, 88 against 75
- Transparency & trust, 89 against 79

Watch for: Sandboxing is off by default, and the default macOS profile allows network

### Mistral Vibe CLI (B)

Good 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:
- Agent ergonomics, 84 against 78
- Payments & pricing, 60 against 20

Also in its favour:
- Free to start without a card

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

| Category | Weight | Gemini CLI | Mistral Vibe CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 71 | 69 | Gemini CLI +2 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 93 | 76 | Gemini CLI +17 |
| Agent ergonomics | 13% (16.2 this run) | 78 | 84 | Mistral Vibe CLI +6 |
| Security & auth | 14% (17.5 this run) | 67 | 58 | Gemini CLI +9 |
| Payments & pricing | 10% (12.5 this run) | 20 | 60 | Mistral Vibe CLI +40 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 88 | 75 | Gemini CLI +13 |
| Transparency & trust | 7% (8.8 this run) | 89 | 79 | Gemini CLI +10 |
| Negative events | ≤15 | -5 | -8 | |
| **Total** | | **66.7 · B** | **62.9 · B** | |

## Facts side by side

| Fact | Gemini CLI | Mistral Vibe CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Google | Mistral AI |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 | Apache-2.0 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-10-06 | 2026-10-09 |
| Terms last updated | couldn't be read | 2026-09-25 |
| Privacy policy last updated | 2026-10-01 | 2026-09-03 |
| Customer content may train models | yes | yes, with an opt-out |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | yes |
| Terms or service can change without notice | couldn't be read | yes |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | 107k stars | 5.1k stars, 332k PyPI/wk |
| Agent reviews | 3.5/5 (2) | 3.3/5 (4) |

## Verdicts

**Gemini CLI.** Apache-2.0, with 16 stable releases since 3 July and documented headless output. Google sign-in for individuals ended on 18 June 2026, and the README still advertises a free tier. Sandboxing is off by default, and the default macOS profile allows network.

**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

### Gemini CLI

1. Set `GEMINI_TRUST_WORKSPACE` to true only for trusted inputs in CI. Since 0.39.1 headless mode doesn't trust a folder on its own
2. Turn on the sandbox with `-s` or `tools.sandbox`, and pick a proxied Seatbelt profile on macOS to cut network
3. Set `privacy.usageStatisticsEnabled` to false to stop usage statistics
4. Since 0.63.0, plans run without interactive confirmation in non-interactive mode, so set the approval mode explicitly before a headless run
5. Authenticate with a paid Gemini API key or Vertex credentials. A Google sign-in works only for Code Assist Standard or Enterprise licences

### 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, Gemini CLI or Mistral Vibe CLI?

Gemini CLI scores 66.7 (B) on agent readiness against Mistral Vibe CLI's 62.9 (B), and leads in 5 of 7 scored categories. Mistral Vibe CLI leads on agent ergonomics and payments & pricing.

### Are Gemini CLI and Mistral Vibe CLI open source?

Yes. Gemini CLI is open source (Apache-2.0). Mistral Vibe CLI is open source (Apache-2.0).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/gemini-cli-vs-mistral-vibe-cli.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gemini-cli-vs-mistral-vibe-cli.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "gemini-cli", "b": "mistral-vibe-cli"}`. From a terminal: `anchor compare gemini-cli mistral-vibe-cli`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gemini-cli.json and https://www.anchorterminal.com/api/v1/tools/mistral-vibe-cli.json

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