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Containment Board · rank 8 of 11 · updated Nov 8, 2026

Mistral safety report card

Mistral is a French SI developer that makes the Mistral Large models. On the Containment Board it gets D overall (GPA 1.14), rank 8 of 11. Mistral signed the Seoul commitments and the EU Code of Practice but has published no frontier safety framework, and FLI ranked it last of nine companies. It red-teamed Mistral Large 4 with partners and state authorities before releasing the weights but published little about that testing.

Overall
D
GPA
1.14
Rank
8 of 11
Sources
6

Five grades

Each grade, why, and the sources

The same rubric applies to every lab. Grades use public documents only, current to November 8, 2026.

Safety framework

DHow it is graded

Why D

No published frontier safety framework was found as of Nov 8, 2026, although Mistral signed the Seoul Frontier AI Safety Commitments, which ask signatories to set out thresholds, and the EU General-Purpose AI Code of Practice.

D on this criterion means: No framework of its own; the lab has only signed voluntary pledges such as the Seoul Frontier AI Safety Commitments, the EU General-Purpose AI Code of Practice or China's CAICT commitments.

Sources

  1. AI Safety Index Summer 2026, full report: Safety Frameworks domain Future of Life Institute ·
  2. AI Safety Index Summer 2026, full report: Voluntary Commitment indicators (Seoul commitments, EU Code of Practice) Future of Life Institute ·
  3. Frontier AI Safety Commitments, AI Seoul Summit 2024 UK Department for Science, Innovation and Technology ·
  4. Frontier AI Safety Policies (index of published company frameworks) METR ·
  5. AI Safety Index, Summer 2026 Edition (scorecard) Future of Life Institute ·

Outside testing

C-How it is graded

Why C-

Before releasing the Mistral Large 4 weights, Mistral said it was red-teaming the model with cybersecurity leaders, vetted partners and state authorities using a version with reduced moderation. No evaluator, method or result for dangerous capabilities was published, and FLI found no public mention of outside testing for Mistral Large 3.

C on this criterion means: Limited outside pre-release testing or review (unnamed red teamers, a single contracted study, review of company results rather than model access), or thin reporting.

Sources

  1. Introducing Mistral Large 4 Mistral ·
  2. Mistral Large 4 (Le Chonk) is now open weight Mistral ·
  3. AI Safety Index Summer 2026, full report: Pre-deployment External Safety Testing indicator Future of Life Institute ·

Shutdown and pause

D-How it is graded

Why D-

Mistral's only pause commitment is its Seoul pledge not to develop or deploy a model if risks cannot be kept below thresholds, and it has published no thresholds to trigger it. FLI found no monitoring and control plan for internal deployment.

D on this criterion means: Discretionary language only ('may shut down', 'as appropriate'), or a signed pledge not to develop or deploy with no published thresholds that would trigger it.

Sources

  1. Frontier AI Safety Commitments, AI Seoul Summit 2024 UK Department for Science, Innovation and Technology ·
  2. AI Safety Index Summer 2026, full report: Internal Monitoring and Control Interventions indicator Future of Life Institute ·

Incident disclosure

D+How it is graded

Why D+

Launch posts report safety benchmarks such as refusal rates and prompt injection resistance, but FLI found no government notification commitments, transparency reports or industry information sharing.

D on this criterion means: Minimal safety documentation; incident reporting only where the law requires it.

Sources

  1. Introducing Mistral Large 4 Mistral ·
  2. Mistral Large 4 (Le Chonk) is now open weight Mistral ·
  3. AI Safety Index Summer 2026, full report: Serious Incident Reporting and Government Notifications indicator Future of Life Institute ·

Whistleblower protection

DHow it is graded

Why D

Mistral states that it has a formal whistleblower policy and an anonymous channel, but no public policy was found.

D on this criterion means: A policy is said to exist but is not public, or there is a credible recent controversy involving suppression of disclosures, such as enforcing a non-disparagement agreement against a former employee.

Sources

  1. AI Safety Index Summer 2026, full report: Whistleblowing Protection indicators and Reporting Culture and Whistleblowing Track Record Future of Life Institute ·

At a glance

Models, facts and its own rules

The flagship models the board looked at, the facts that shaped the grades and the safety policy Mistral has published for itself.

Flagship models

Mistral Large 4 (Le Chonk)

Notable

Facts behind the grades

  • FLI's Summer 2026 index graded Mistral F overall, last of the nine companies it reviewed.
  • Mistral released the weights of Mistral Large 4 on Oct 29, 2026 and describes it as leading open-weight models in cybersecurity.

Its own rules

Published safety policy

The Control Map lists no frontier safety framework of its own for Mistral. Its safety framework grade above explains what the board found instead.

The Rogue Log

Incidents involving Mistral systems

Cases in the Rogue Incident Database that involve Mistral systems.

The Rogue Incident Database has no documented case involving Mistral systems yet. That can mean a clean record or little disclosure; the incident disclosure grade above says which is more likely.

Browse all 59 incidents

The Control Map

SI safety rules where it is based

Mistral is based in France. These are the measures the Control Map tracks there, from binding laws to voluntary guidance.

Cite this report card

"Mistral safety report card." The Containment Board, enterrsi.si, November 8, 2026. Overall D (GPA 1.14), rank 8 of 11. https://enterrsi.si/containment-board/mistral/

Free to cite under CC BY 4.0 with a link to enterrsi.si.

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