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Assistantlaunched in February 2024

Vibe

Mistral AI ↗ · France
40out of 100Celsius score, 6th of 10

Identity card

The company

Founded
2023
Head office
Paris, France
Chief executive
Arthur Mensch

The product

Flagship model
Mistral Large
Subscription
€17.99 per month · Pro
API
0.50 $ / 1.50 $ input / output, per million tokens

The data

Law
France and European Union
Storage
European Union, by default

Usage

Web traffic
not measured
Developers
2.2 %

Key points

Vibe, formerly Le Chat from Mistral AI, is the European alternative: a French company, data hosted in the Union and the lowest API output price of the 9 assistants that have one. Its models remain behind the best, and Mistral AI publishes very little on safety.

Good for
  • Data in Europe
  • French public bodies and companies
  • Small budgets
Less suited to
  • The most complex tasks
  • Documented safety
Share of web traffic of AI sites, September 2026
Not measuredOutside the Similarweb record of AI sites.

2.2 % of tokens processed on OpenRouter, the developers' platform, week of 26/10/2026 (6th of 7 assistants present).

Source: Similarweb, data from August 2025 to September 2026, relayed by the press.

Our recommendation

Yes if your data must stay in Europe or if you are looking for the best price. Look elsewhere for the tasks that demand the most reasoning or code (Claude, Gemini).

Strengths

Weak points

The company Mistral AI

The Mistral AI entry →

Company history

Mistral AI was founded in Paris in April 2023 by 3 researchers who had worked at Google DeepMind and Meta: Arthur Mensch, Guillaume Lample and Timothée Lacroix. Their idea: a European AI, with partly open models, not dependent on the American giants.

The story continues

Le Chat is released in February 2024. The company raises funds quickly: €1.7 billion in September 2025 with the Dutch company ASML, then €3 billion in September 2026 with the South Korean company Samsung.

In May 2026, Le Chat becomes Vibe, an assistant geared towards work and code.

Sources: Wikipedia, 7 November 2026 ↗ ; Mistral AI, 9 September 2025 ↗ ; France Transactions, 8 September 2026 ↗ ; heise online, 29 May 2026 ↗

Key dates

  1. 28 April 2023Founded in Paris↗
  2. 26 February 2024Launch of Le Chat↗
  3. 22 July 2025Life cycle assessment of its model, a first↗
  4. 9 September 2025€1.7 billion funding round led by ASML↗
  5. 28 May 2026Le Chat becomes Vibe↗
  6. 8 September 2026€3 billion funding round, Samsung joins↗

Leadership

Chief executive officer and co-founder
Arthur Mensch ↗
Chief Science Officer and co-founder
Guillaume Lample ↗
Chief Technology Officer and co-founder
Timothée Lacroix ↗

Key figures

Valuation, September 2026
€21.3 billionFrance Transactions, 8 September 2026 ↗
Latest funding round, September 2026
€3 billionFrance Transactions, 8 September 2026 ↗
Revenue target, 2026
€1 billionFrance Transactions, 8 September 2026 ↗

Vibe plans

Monthly price of Vibe plansIn France, incl. VAT, € per monthThe subscription compared in the rankingIn grey: in the United States, excl. tax
  1. FreeFree0 €0 $
  2. ProStandard17.99 €14.99 $
  3. TeamTeam, per seat29.99 €24.99 $
  4. EnterpriseCompanyon quote

Mistral AI pricing pages: including VAT in France, excluding tax in the United States; up to date as at 9 November 2026.

Content of the 4 plans, prices in France and the United States
FreeFreeA limited number of messages, web searches and code sessionsIn France, incl. VAT0 €In the United States, excl. tax0 $
StandardProFull Vibe, for long work and code sessionsIn France, incl. VAT17.99 €In the United States, excl. tax14.99 $
TeamTeamA team workspace, more usage and up to 30 GB of storage per personIn France, incl. VAT€29.99 per userIn the United States, excl. tax$24.99 per user
CompanyEnterprisePrivate deployment, custom models and agents, audit logsIn France, incl. VATnot publishedIn the United States, excl. taxnot published

Prices in France and the United States. In the United States, prices are shown in dollars and excluding tax; in France, they include 20% VAT. So $20 does not equal €20: the French price is often slightly higher.

API price of the flagship model of the 9 assistants that have oneOutput price, $ per million tokensVibeIn grey: input price
  1. VibeMistral Large1.50 $0.50 $the lowest output price of the 9
  2. PerplexitySonar2.50 $0.25 $
  3. DeepSeekV4-Pro3.96 $1.32 $
  4. Meta AIMuse Spark 1.14.25 $1.25 $
  5. QwenQwen3.8-Max6 $2 $
  6. GrokGrok 4.76 $2 $
  7. GeminiGemini 4 Argon10 $2 $
  8. ClaudeOpus 5.520 $4 $
  9. ChatGPTGPT-6 Astra50 $10 $

Copilot: no API of its own. Flagship model of each company, standard rate, up to date as of 9 November 2026.

Prices up to date as of 9 November 2026, read on the companies' pages, or from 2 concordant sources; the date of each record is in the page's price file Methodology.

Vibe models

Company
Mistral AI
Models offered
Mistral Medium 3.5by default, all; 70th of 71 for general intelligence (official page ↗)Mistral Medium 3.5paid plan, Pro, Team, Enterprise (Work mode and remote code agents); 70th of 71 for general intelligence (official page ↗)

Links read on 10/11/2026 on the company's pages, press as a fallback. Rank: Epoch AI ECI index (CC BY 4.0). Performance of AI models

Data management

How Mistral AI handles conversations

Score on this criterion: 58 out of 100, joint 1st out of 10. Data hosted in the European Union by default; training by default, can be turned off; retention period not published. The ethics ranking

Environment

Environment score

72 2nd out of 10
  • Simple query 40 %67
  • Advanced queries 20 %75
  • Decarbonised electricity 20 %75
  • Environmental approach 20 %75

Black line: average of the 10. The environmental ranking

Our view

Vibe serves a fast mode by default, without video, on servers in Europe (210 gCO2e/kWh, against 384 in the United States). Mistral AI is the only company to have published a life cycle assessment of its model: 1.14 gCO2e for a half-page response. This assessment dates from 2025 and has not been updated, and the company does not publish an environmental report.

Per-query figure published by Mistral AI

1.14 gCO2e

per query, according to Mistral AI: life cycle assessment published in July 2025, half-page response.

Company figures cannot be compared with each other: scopes and methods differ. The "Simple query" criterion of the environmental ranking combines them with external estimates, for lack of a common basis: the methodology sets out the limits.

  • Gemini0.24 Wh
  • Copilotnothing published
  • Vibe1.14 gCO2e
  • Claudenothing published
  • ChatGPT0.34 Wh
  • Qwennothing published
  • Meta AInothing published
  • Perplexitynothing published
  • DeepSeeknothing published
  • Groknothing published

On the Éclairages blog: What is the electricity consumption of AI? ↗ ; Which AIs pollute the most? ↗

Scores and criteria

The ranking →

The Celsius score is the average of 3 scores: performance, ethics and environment. Each combines several criteria. Each row places Vibe among the 10; clicking a criterion opens its definition and the justification for Vibe's score.

Dots: the 9 other assistants; grey line: average of the 10The methodology
Celsius score 406th of 10
Performance 1/3710th of 10
5 public rankings 100 %710th of 10

Definition. Synthesis of 5 public performance rankings, where models are ranked by tests or by votes from internet users: each ranking gives 100 to the best of the 10 and 0 to the last.

Justification. LMArena: 113th (rank among 419 models); Artificial Analysis: 26 (index v5.0.1); Epoch AI: 150.6 (ECI index); compar:IA: 29th (rank among 121 models); ARC-AGI-2: 0 (% passed).

Ethics 1/3415th out of 10
Content produced 30 %33joint 7th of 10

Definition. Content the assistant produces on request (sexual, misleading images, minors) and results of independent tests.

Justification. The policy does not prohibit erotica between adults; age 13 without verification; Russian propaganda repeated 56.6% of the time in French (NewsGuard, 2026).

Use of data 30 %58joint 1st out of 10

Definition. Use of conversations for training, retention period, storage location, sanctions by the authorities.

Justification. Data hosted in the European Union by default; training by default, can be turned off; retention period not published.

Safety 20 %17joint 8th of 10

Definition. Independent safety evaluations (Future of Life Institute, SaferAI, Phare) and resistance to attacks.

Justification. Last of the 9 companies rated by the Future of Life Institute (F, summer 2026); no published safety framework; Mistral Large 3, worst resistance to jailbreaks in Phare (24.9%, 7/2026).

Governance 20 %503rd out of 10

Definition. Control of the company and deliberate choices: military uses, shareholding, commitments kept or abandoned.

Justification. French company, European code signed in full; framework agreement with the Ministry of the Armed Forces with no published limit (1/2026).

Environment 1/3722nd out of 10
Simple query 40 %672nd out of 10

Definition. Consumption of a typical text query, on the default model served: figure published by the company, third-party estimate, failing that the size of the model.

Justification. Fast mode by default, reasoning on demand; 1.14 g CO₂e per half-page response (LCA, 2025).

Advanced queries 20 %751st out of 10

Definition. Weight of the resource-hungry uses the product promotes: video and image generation, agents, reasoning enabled by default.

Justification. No video; free images (Flux); the Work agent reasons on its own.

Decarbonised electricity 20 %751st out of 10

Definition. Share of low-carbon electricity in the data centres and efforts to increase it: local grid, on-site gas, renewable or nuclear electricity contracts.

Justification. Data hosted in the European Union by default (210 g CO₂e/kWh); data centre in Essonne announced.

Environmental approach 20 %752nd out of 10

Definition. What the company publishes and commits to: energy and emissions figures, environmental report, targets, model optimisation.

Justification. Only life cycle assessment published by an AI company (2025), never updated; no corporate report.

Compare

Other comparisons

Celsius score gap.

Ranked 6th of 10 in the assistant ranking, scores as at 11 November 2026. Facts and figures in the entry collected from 7 to 9/11/2026, each with its source; foundation and headquarters: Registre national des entreprises, Mistral AI (SIREN 952,418,325), 9 November 2026 ↗.

Continue in the ranking

The full ranking →

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