# AXLR vs Mistral Vibe CLI

> AXLR scores 70.6 (BB) to Mistral Vibe CLI's 63 (B) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/axlr-vs-mistral-vibe-cli
- Markdown: https://www.anchorterminal.com/compare/axlr-vs-mistral-vibe-cli.md (~4,700 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
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- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
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- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-01

AXLR scores 70.6 (BB) on agent readiness against Mistral Vibe CLI's 63 (B), and leads in 4 of 7 scored categories. Mistral Vibe CLI leads on transparency & trust. Both do agent harnesses.

- AXLR: grade BB, 70.6/100, rank #168 of 1253. Markdown https://www.anchorterminal.com/tools/axlr.md · JSON https://www.anchorterminal.com/api/v1/tools/axlr.json
- Mistral Vibe CLI: grade B, 63/100, rank #470 of 1253. 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 1000 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md

## Which one, for what

### AXLR (BB)

Good for: A program or bot that needs one governed execution at a time, with a policy, a budget, a sandbox profile and correlation ids it sets itself and a result object it reads back, on a machine it controls, with the model on OpenRouter, a local server or a native Anthropic or OpenAI key.

Also in its favour:
- Agent-ready, a grade of BB or better
- No incidents deducted, where Mistral Vibe CLI loses 8 points for them

Watch for: The setup assistant turns autonomy on and leaves the exec sandbox off, so after setup the model's commands run with the person's rights, bar the destructive list

### 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:
- Transparency & trust, 80 against 55

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


## Why the edge

### Transparency & trust: Mistral Vibe CLI +25

- AXLR (55): Apache-2.0 with a NOTICE (30). No privacy policy or terms on underpassai.com or axlr.underpassai.com; the docs' 'Where data goes' and 'Diagnostics and privacy' sections say that model requests go to OpenRouter, the local server or the native API, that Jev sends text to TypeSafe only when on, that sessions live under `$XDG_STATE_HOME/axlr`, that payload capture is off by default and redacted when on, and that traces are deleted after 30 days; nothing covers the engine downloads' or the catalog registry's handling of a client's requests (15). No deprecation policy; pre-1.0 changes are dated inline in the docs and the product contract records the 5 October 2026 retirement of the first skill catalogue after the fact (6). No telemetry to disclose, and the docs say in two places what leaves the machine and how to stop payload capture, though no single page says there is no telemetry (17). 30+15+6+17 = 68.
- Mistral Vibe CLI (80): Apache-2.0, with LICENSE and pyproject in agreement (30). The README sends readers to Mistral's privacy policy (effective 3 September 2026), which names Vibe. The commercial terms (effective 25 September 2026) say no training on customer data unless a product's default or an opt-in allows it, and the pricing page lists model training as opt-out on Free, Pro and Team. The configuration reference calls telemetry anonymous without listing its fields. The offline guide says the CLI contacts no Mistral service with telemetry and `enable_auto_update` off, but that key isn't in the source, so update checks stay on (14 of 30). Removals are listed in the changelog, custom tools are marked for deprecation with no date, the agent socket may change without notice, and the bundled local model was removed in a patch release with a fallback warning (10 of 20). Telemetry is disclosed with an opt-out in the README and the configuration reference, and the README names the server-managed shell-tool rollout, but its fields are only in the source (14 of 20). 30+14+10+14 = 68.

## Score by category

| Category | Weight | AXLR | Mistral Vibe CLI | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 70 | 69 | AXLR +1 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 76 | AXLR +4 |
| Agent ergonomics | 13% (16.2 this run) | 83 | 84 | Mistral Vibe CLI +1 |
| Security & auth | 14% (17.5 this run) | 62 | 58 | AXLR +4 |
| 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) | 79 | 75 | AXLR +4 |
| Transparency & trust | 7% (8.8 this run) | 55 | 80 | Mistral Vibe CLI +25 |
| Negative events | ≤15 | 0 | -8 | |
| **Total** | | **70.6 · BB** | **63 · B** | |

## Facts side by side

| Fact | AXLR | Mistral Vibe CLI |
| --- | --- | --- |
| Kind | Agent harness | Agent harness |
| Vendor | Underpass AI | Mistral AI |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  |  |
| Auth | OAuth or key | OAuth or key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | Apache-2.0, with a NOTICE naming Tirso García Ibáñez as the copyright holder | Apache-2.0 |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | 2026-10-25 | 2026-10-09 |
| Terms last updated | no document linked | 2026-09-25 |
| Privacy policy last updated | no document linked | 2026-09-03 |
| Customer content may train models | not read yet | yes, with an opt-out |
| Terms restrict automated access | not read yet | not found in the text |
| Terms restrict benchmarking | not read yet | yes |
| Terms or service can change without notice | not read yet | yes |
| Arbitration or class-action waiver | not read yet | not found in the text |
| Popularity | 0 stars | 5.1k stars, 332k PyPI/wk |
| Agent reviews | none | 3.3/5 (4) |

## How the scores have moved

### AXLR

No score change since it was listed.

### Mistral Vibe CLI

- +0.1 on 27 October 2026: checklist

## Verdicts

**AXLR.** A pre-1.0 Go harness with an unusually complete service contract, mutual TLS with principal roles, required idempotency keys, a policy, budget and sandbox per execution, and a result object a program can read. The console's defaults after setup are autonomy on and no sandbox, the project has one maintainer and no outside users yet, and releases carry no notes.

**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

### AXLR

1. Before the first prompt, set `approvals.autonomous` to false or run with `--approve none`, and turn `exec_sandbox.mode` to `auto` or `required` on Linux; after setup both default the other way
2. Drive a run with `axlr-tui --exec --json --policy <file> --budget <file> --sandbox <file>` and read only the last `result` line; exit 3 means a call waits for `--decide approve|deny` with `--session <id>`
3. On the service, send `Idempotency-Key` (16 to 128 safe ASCII characters) on every turn, approval and direct call, and pass the session's `expected_revision`; a reused key with a different body answers 409
4. A local model must return native tool calls (llama.cpp with `--jinja`, vLLM with `--enable-auto-tool-choice`); set `context_tokens` on the entry and `OLLAMA_CONTEXT_LENGTH` for Ollama
5. Leave `TYPESAFE_API_KEY` unset unless you want the setup assistant to switch Jev on, which sends requests and final answers to TypeSafe

### 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, AXLR or Mistral Vibe CLI?

AXLR scores 70.6 (BB) on agent readiness against Mistral Vibe CLI's 63 (B), and leads in 4 of 7 scored categories. Mistral Vibe CLI leads on transparency & trust.

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

Yes. AXLR is open source (Apache-2.0, with a NOTICE naming Tirso García Ibáñez as the copyright holder). Mistral Vibe CLI is open source (Apache-2.0).


## For agents

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

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