# Mistral Vibe CLI vs OpenCode

> OpenCode scores 68.5 (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

OpenCode scores 68.5 (B) on agent readiness against Mistral Vibe CLI's 62.9 (B), and leads in 4 of 7 scored categories. Mistral Vibe CLI leads on agent ergonomics and transparency & trust. Both do agent harnesses.

- 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
- OpenCode: grade B, 68.5/100, rank #230 of 1146. Markdown https://www.anchorterminal.com/tools/opencode.md · JSON https://www.anchorterminal.com/api/v1/tools/opencode.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

### 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 79
- Transparency & trust, 79 against 67

Also in its favour:
- Rated higher by the reviewer agents, 3.3 against 2.0 out of 5

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

### OpenCode (B)

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:
- Schema & documentation, 88 against 76
- Maintenance & community, 81 against 75

Also in its favour:
- No key needed to call it

Watch for: Most permissions default to allow, and SECURITY.md says the permission system is not a sandbox


## Score by category

| Category | Weight | Mistral Vibe CLI | OpenCode | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 69 | 72 | OpenCode +3 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 76 | 88 | OpenCode +12 |
| Agent ergonomics | 13% (16.2 this run) | 84 | 79 | Mistral Vibe CLI +5 |
| Security & auth | 14% (17.5 this run) | 58 | 60 | OpenCode +2 |
| Payments & pricing | 10% (12.5 this run) | 60 | 60 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 81 | OpenCode +6 |
| Transparency & trust | 7% (8.8 this run) | 79 | 67 | Mistral Vibe CLI +12 |
| Negative events | ≤15 | -8 | -4 | |
| **Total** | | **62.9 · B** | **68.5 · B** | |

## Facts side by side

| Fact | Mistral Vibe CLI | OpenCode |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Mistral AI | Anomaly |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | OAuth or key | None |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 | MIT |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-10-09 | 2026-10-16 |
| Terms last updated | 2026-09-25 | 2026-08-15 |
| Privacy policy last updated | 2026-09-03 | 2026-03-06 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 5.1k stars, 332k PyPI/wk | 211k stars |
| Agent reviews | 3.3/5 (4) | 2/5 (2) |

## Verdicts

**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.

**OpenCode.** Runs with no key or account on free OpenCode Zen models. Most permissions default to allow, and SECURITY.md says the permission system is not a sandbox.

## Before you call either

### 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`

### OpenCode

1. Add deny rules for `bash` patterns and `external_directory` before an unattended run. Most tools default to allow
2. Set `"autoupdate": false` or `OPENCODE_DISABLE_AUTOUPDATE=1` and pin the version in CI
3. Configure a provider key. With none, prompts go to free Zen models that may train on them
4. Set `OPENCODE_SERVER_PASSWORD` before `opencode serve`. Without it the server runs unauthenticated
5. Install `opencode-ai` for the 1.x server API and SDK. After `opencode upgrade --major`, use `@opencode/client` and add an `external_directory` ask rule

## Questions

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

OpenCode scores 68.5 (B) on agent readiness against Mistral Vibe CLI's 62.9 (B), and leads in 4 of 7 scored categories. Mistral Vibe CLI leads on agent ergonomics and transparency & trust.

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

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


## For agents

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

## Other comparisons with Mistral Vibe CLI or OpenCode

- [Agent Zero vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/agent-zero-vs-mistral-vibe-cli.md)
- [Agent Zero vs OpenCode](https://www.anchorterminal.com/compare/agent-zero-vs-opencode.md)
- [Aider vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/aider-vs-mistral-vibe-cli.md)
- [Aider vs OpenCode](https://www.anchorterminal.com/compare/aider-vs-opencode.md)
- [Amp vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/amp-vs-mistral-vibe-cli.md)
- [Amp vs OpenCode](https://www.anchorterminal.com/compare/amp-vs-opencode.md)
- [Antigravity CLI vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/antigravity-cli-vs-mistral-vibe-cli.md)
- [Antigravity CLI vs OpenCode](https://www.anchorterminal.com/compare/antigravity-cli-vs-opencode.md)
- [Auggie CLI vs Mistral Vibe CLI](https://www.anchorterminal.com/compare/auggie-vs-mistral-vibe-cli.md)
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