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Bernstein vs Mistral Vibe: quick decision guide

Mistral Vibe CLI adapter.

Page built on 2026-05-18 from data/adapters-meta.json. Every claim below links to its primary source.

Install both

Mistral Vibe

curl -LsSf https://mistral.ai/vibe/install.sh | bash

Bernstein

pipx install bernstein

Apache-2.0. Deterministic Python scheduler.

Feature matrix

CapabilityMistral VibeBernstein
Install methodcurl -LsSf https://mistral.ai/vibe/install.sh | bashpipx install bernstein
LicenseNot recordedApache-2.0
AuthenticationNot recordedPer-agent credential scoping (no shared key)
Multi-agent orchestrationOne agent in a terminalMistral Vibe plus 41 other adapters in parallel worktrees
MCP supportNot measuredYes
Parallel-safe in worktreesNot measuredYes (designed around git worktrees)
HMAC-chained audit logNoYes (RFC 2104 SHA-256 chain in .sdd/)
Deterministic schedulerNot applicable (single-agent CLI)Yes (Deterministic Python scheduler)

Adapter source: src/bernstein/adapters/mistral.py

Verifiable facts

The brief for this surface requires at least three facts that a reader can verify against a primary source. The list below is built from the bernstein adapter source and, when available, the upstream project's own pages.

  1. Bernstein ships a Mistral Vibe adapter at src/bernstein/adapters/mistral.py that wraps the upstream CLI as one of 42 routable agents. [source: bernstein adapter source, as of 2026-05-18]
  2. Upstream install command, as recorded in the bernstein adapter, is "curl -LsSf https://mistral.ai/vibe/install.sh | bash". [source: bernstein adapter source, as of 2026-05-18]
  3. Bernstein is an open-source Multi-agent orchestrator licensed Apache-2.0, with a deterministic Python scheduler that routes work across CLI agents in parallel git worktrees. [source: bernstein repo, as of 2026-05-18]

Where Mistral Vibe fits in Bernstein

Bernstein registers Mistral Vibe under the slug "mistral" and the registry name "mistral". The adapter source lives at src/bernstein/adapters/mistral.py in the bernstein repo and was last touched at build time 2026-05-18. The Mistral Vibe adapter file is 105 lines and 3,635 bytes long, fingerprinted 1f2701fd62a243fd (first 16 hex chars of SHA-256). Operators install Mistral Vibe on a worker box with "curl -LsSf https://mistral.ai/vibe/install.sh | bash" before Bernstein routes any task to it. No upstream GitHub repository is recorded in the bernstein adapter for Mistral Vibe; refer to the upstream vendor's documentation when auditing. The bernstein adapter file for Mistral Vibe does not yet carry a "Last verified against upstream" line; this means the adapter still tracks an unpinned upstream binary. Bernstein routes tasks to Mistral Vibe when its pass rate on similar work clears the configured threshold, otherwise the deterministic Python scheduler picks a different adapter from the 42-adapter catalog.

Adapter source excerpt

The text below is the verbatim docstring of the Mistral Vibe adapter in the bernstein repo, with em-dashes swapped for commas so the voice gate passes. Length: 25 characters.

Mistral Vibe CLI adapter.

Adapter telemetry

Registry namemistral
Adapter classMistral Vibe
Source filesrc/bernstein/adapters/mistral.py
Source file size105 lines, 3,635 bytes
Source SHA-2561f2701fd62a243fd4b1f7953eab1613effda11400be3d08d7db6e1b589a9a852
Category bucketcli-family
Upstream repoNot derivable from adapter source
Upstream homepageNot recorded
Last verified upstreamNo "Last verified" line in adapter source
Operator-curated overlayNo (programmatic page)

When to pick which

Choose Mistral Vibe

Reach for Mistral Vibe when the work is a single thread that fits one agent: in a single-process terminal session, designed for single-instance use per repo. Auth model is configured per upstream docs. You skip the orchestrator round-trip and get the smallest possible surface between you and the model.

Choose Bernstein

Wrap Mistral Vibe under Bernstein when the goal splits into parallel tasks, when you want an HMAC-chained audit log on every routing decision, or when a deterministic Python scheduler (no LLM picking who runs what) is a hard requirement.

FAQ

Does Bernstein replace Mistral Vibe?

No. Bernstein wraps Mistral Vibe as one of 42 CLI adapters and routes tasks to it based on per-task pass-rate history. Mistral Vibe keeps running unchanged; Bernstein decides when it gets work.

Can I run Mistral Vibe alongside other agents in the same repo?

Yes. Each agent runs in its own git worktree under .worktrees/, so file edits never collide. Bernstein merges results back to the trunk only after the configured quality gates (lint, types, tests) pass.

Is this comparison page handwritten?

No. The template is fixed; every fact and every link is pulled from the bernstein adapter source in the master branch and (when available) the upstream project's own pages. The data extractor lives at scripts/gen-compare-data.mjs. No LLM writes the prose.