WeAreBrain vs Probayes: full comparison for 2026
Last updated: July 2026
Quick verdict
WeAreBrain (4.2/5) edges ahead of Probayes (4.1/5) overall. WeAreBrain is the better choice for companies wanting AI and machine learning delivered as part of a broader digital product build. Probayes is the stronger option for automotive, defense, and finance clients needing rigorous Bayesian and predictive-modeling expertise. The right choice depends on your project size, budget, and required tech stack.
WeAreBrain vs Probayes: head-to-head summary
| Criterion | WeAreBrain | Probayes |
|---|---|---|
| Founded | 2015 | 2003 |
| HQ | Amsterdam, Netherlands | Montbonnot-Saint-Martin (Grenoble), France |
| Team size | 51–200 | 51–200 |
| Rating | 4.2 / 5 | 4.1 / 5 |
| Best for | Companies wanting AI and machine learning delivered as part of a broader digital product build | Automotive, defense, and finance clients needing rigorous Bayesian and predictive-modeling expertise |
| Pricing model | Fixed project, dedicated team | Retainer, fixed project |
| Min. engagement | $25K | $25K |
| Primary tech stack | Python, AWS, Azure | Python, R, Bayesian modeling frameworks |
| Industries served | SaaS, Fintech, Enterprise, Retail | Automotive, Defense, Financial Services, Healthcare |
WeAreBrain vs Probayes: overview
WeAreBrain
WeAreBrain is an Amsterdam, Netherlands-headquartered digital product and AI agency founded in 2015 by Mario Grunitz, Elvire Jaspers, and Ievgen Miasushkin. The roughly 60 to 70 person team specializes in digital transformation, AI and machine learning applications, and intelligent process automation. In 2017, WeAreBrain co-founded Tur.ai, an AI and hyperautomation platform with joint Amsterdam and Kyiv operations, reflecting the founders' Ukrainian engineering ties.
Probayes
Probayes, based in Montbonnot-Saint-Martin near Grenoble, France, is a private AI and data science company founded in 2003. With around 86 employees, Probayes specializes in Bayesian modeling, predictive analysis, and optimization for the automotive, defense, finance, and health sectors, making it one of the longest continuously operating AI-focused firms in this list.
Services and capabilities: WeAreBrain vs Probayes
| Capability | WeAreBrain | Probayes |
|---|---|---|
| ML model development | ✓ | ✓ |
| Computer vision | ✗ | ✗ |
| NLP | ✗ | ✗ |
| Generative AI / LLM integration | ✗ | ✗ |
| MLOps | ✓ | ✗ |
| AI strategy consulting | ✓ | ✓ |
| Staff augmentation | ✗ | ✗ |
Tech stack comparison: WeAreBrain vs Probayes
| Framework / platform | WeAreBrain | Probayes |
|---|---|---|
| Python | ✓ | ✓ |
| TensorFlow | ✓ | N/A |
| PyTorch | N/A | N/A |
| AWS | ✓ | ✓ |
| Azure | ✓ | ✓ |
| Kubernetes | N/A | N/A |
Pricing comparison: WeAreBrain vs Probayes
| Criterion | WeAreBrain | Probayes |
|---|---|---|
| Minimum engagement | $25K | $25K |
| Engagement models | Fixed project, Dedicated team | Retainer, Fixed project |
| Rate transparency | Minimum disclosed | Minimum disclosed |
| Price tier | Accessible | Accessible |
Target audience comparison: WeAreBrain vs Probayes
| Dimension | WeAreBrain | Probayes |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | SaaS, Fintech, Enterprise | Automotive, Defense, Financial Services |
| Best use cases | Building an AI-powered consumer-facing digital product, Intelligent process automation for back-office workflows | Predictive maintenance modeling for automotive systems, Bayesian risk modeling for finance or defense applications |
| Typical project type | Fixed project | Retainer |
WeAreBrain vs Probayes: pros and cons
| WeAreBrain | |
|---|---|
| + | A decade of operating history since founding in 2015 as an Amsterdam-based digital product agency |
| + | Co-founded a dedicated AI and hyperautomation platform, Tur.ai, showing deeper AI investment beyond client services |
| + | Combines product design with ML and AI engineering, useful for consumer-facing AI products |
| + | EU-headquartered in the Netherlands, simplifying GDPR compliance for European clients |
| - | AI and ML is one of several practice areas alongside broader digital product work |
| - | Some delivery ties to Kyiv, Ukraine via the Tur.ai venture carry the same continuity considerations as other Ukraine-linked firms |
| Probayes | |
|---|---|
| + | Over two decades of operating history since founding in 2003, one of the longest-running AI specialists on this list |
| + | Deep, rigorous expertise in Bayesian modeling and predictive optimization rather than trend-driven AI positioning |
| + | Established presence in demanding regulated sectors like defense and automotive |
| + | Located in the Grenoble tech corridor, a recognized French deep-tech hub |
| - | Bayesian and predictive-analytics specialization is narrower than firms covering the full modern generative AI stack |
| - | Smaller regional presence in the Grenoble area versus Paris- or Amsterdam-based firms with broader visibility |
Who should choose WeAreBrain?
WeAreBrain is the right choice for companies wanting AI and machine learning delivered as part of a broader digital product build.
Digital product agency DNA combined with a dedicated AI, ML, and intelligent automation practice. Minimum engagement starts at $25K. Works best with clients in SaaS, Fintech, Enterprise, Retail.
Who should choose Probayes?
Probayes is the right choice for automotive, defense, and finance clients needing rigorous Bayesian and predictive-modeling expertise.
Over two decades of specialization in Bayesian AI and predictive analytics, predating the current ML and AI boom. Minimum engagement starts at $25K. Works best with clients in Automotive, Defense, Financial Services, Healthcare.
Decision matrix: WeAreBrain vs Probayes
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | WeAreBrain |
| You need a large dedicated team for an ongoing programme | WeAreBrain |
| Your budget is at the lower end | WeAreBrain |
| You need specialist depth in a specific vertical | WeAreBrain |
| You need staff augmentation or team extension | Neither; consider alternatives that offer staff aug |
| You need consulting before committing to a build | WeAreBrain |
Use case fit: WeAreBrain vs Probayes
| Use case | WeAreBrain fit | Probayes fit | Winner |
|---|---|---|---|
| Building an AI-powered consumer-facing digital product | Strong | Limited | WeAreBrain |
| Intelligent process automation for back-office workflows | Strong | Limited | WeAreBrain |
| Predictive maintenance modeling for automotive systems | Limited | Strong | Probayes |
| Bayesian risk modeling for finance or defense applications | Limited | Strong | Probayes |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: WeAreBrain vs Probayes
WeAreBrain (4.2/5) is the stronger overall choice for most Machine Learning Development projects. Digital product agency DNA combined with a dedicated AI, ML, and intelligent automation practice. It is best for companies wanting AI and machine learning delivered as part of a broader digital product build.
Probayes (4.1/5) is the better choice when automotive, defense, and finance clients needing rigorous Bayesian and predictive-modeling expertise. If your situation matches those criteria, Probayes is a competitive option.
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WeAreBrain vs Probayes FAQ
Is WeAreBrain better than Probayes?
WeAreBrain (4.2/5) scores higher overall, but "better" depends on your use case. WeAreBrain is better for companies wanting AI and machine learning delivered as part of a broader digital product build. Probayes is better for automotive, defense, and finance clients needing rigorous Bayesian and predictive-modeling expertise.
How do WeAreBrain and Probayes differ in pricing?
WeAreBrain uses fixed project, dedicated team pricing with a minimum engagement of $25K. Probayes uses retainer, fixed project pricing with a minimum engagement of $25K. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: WeAreBrain or Probayes?
WeAreBrain is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.
What are the main differences between WeAreBrain and Probayes?
WeAreBrain's primary differentiator is: digital product agency dna combined with a dedicated ai, ml, and intelligent automation practice. Probayes's primary differentiator is: over two decades of specialization in bayesian ai and predictive analytics, predating the current ml and ai boom. They also differ in team size (51–200 vs 51–200), minimum engagement ($25K vs $25K), and primary industries served (SaaS, Fintech vs Automotive, Defense).
Last reviewed: July 2026. Verify all details directly with each company before making a decision.