Best AI Agent Development Companies in Europe

Gradient Labs vs Belitsoft: full comparison for 2026

Last updated: August 2026

Quick verdict

Gradient Labs (4.3/5) edges ahead of Belitsoft (3.7/5) overall. Gradient Labs is the better choice for uK and European financial-services firms wanting a narrow, deeply regulatory-fluent autonomous customer-operations agent.. Belitsoft is the stronger option for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.. The right choice depends on your project size, budget, and required tech stack.

Gradient Labs vs Belitsoft: head-to-head summary

Criterion Gradient Labs Belitsoft
Founded 2023 2004
HQ London, UK Warsaw, Poland
Team size 11–50 51–400
Rating 4.3 / 5 3.7 / 5
Best for UK and European financial-services firms wanting a narrow, deeply regulatory-fluent autonomous customer-operations agent. European healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.
Pricing model Retainer, platform licensing Fixed project, dedicated team
Min. engagement Not published $20K (per company website; independently unverifiable)
Primary tech stack Python, LangChain, OpenAI Python, LangChain, AWS
Industries served Financial Services, Banking Healthcare, Financial Services, Technology & SaaS

Gradient Labs vs Belitsoft: overview

Gradient Labs

Gradient Labs is a London-based startup founded in 2023 by former Monzo Bank employees Dimitri Masin, Neal Lathia, and Danai Antoniou, with roughly 46 employees and $13M+ in Series A funding at a $60M valuation. Its flagship product, Otto, is an autonomous agent purpose-built for customer operations in regulated financial services, engineered to resolve complex queries end-to-end while maintaining compliance, reportedly achieving up to a 90% resolution rate with a 98% QA pass rate. Its narrow, financial-services-specific focus and UK domicile make it a fit for buyers wanting deep regulatory fluency over broad horizontal agent capability.

Belitsoft

Belitsoft is a custom software development company founded in 2004 with headquarters in Warsaw, Poland and delivery teams distributed across Poland, Latvia, and Georgia, totaling roughly 130–400 developers, testers, and other specialists depending on the source. Its existing vertical experience in e-learning, healthcare, and fintech gives European buyers in those sectors a directly comparable reference base. Its Poland and Latvia offices sit within the EU; its Georgia office sits outside EU jurisdiction, worth confirming per-project data residency.

Services and capabilities: Gradient Labs vs Belitsoft

Capability Gradient Labs Belitsoft
Multi-agent orchestration
RAG / knowledge integration
Workflow & systems integration
Coding agents
Monitoring & anomaly detection
Customer-facing agents

Tech stack comparison: Gradient Labs vs Belitsoft

Framework / platform Gradient Labs Belitsoft
LangChain
LangGraph N/A N/A
AutoGen N/A N/A
LlamaIndex N/A N/A
OpenAI N/A
Anthropic Claude N/A
Pinecone N/A N/A
AWS
Azure N/A
Kubernetes N/A N/A

Pricing comparison: Gradient Labs vs Belitsoft

Criterion Gradient Labs Belitsoft
Minimum engagement Not published $20K (per company website; independently unverifiable)
Engagement models Retainer Fixed project, Dedicated team
Rate transparency Minimum disclosed Minimum disclosed
Price tier Mid-market Accessible

Target audience comparison: Gradient Labs vs Belitsoft

Dimension Gradient Labs Belitsoft
Best company size Startup to mid-market Startup to mid-market
Best industries Financial Services, Banking Healthcare, Financial Services, Technology & SaaS
Best use cases Regulated financial-services firms wanting a purpose-built autonomous customer-operations agent, Banking or insurance clients needing compliance-fluent agent behavior out of the box European healthcare or fintech buyers wanting sector-matched reference contracts, E-learning platforms adding AI tutoring or advisory agents
Typical project type Retainer Fixed project

Gradient Labs vs Belitsoft: pros and cons

Gradient Labs
+ Founding team's direct experience at Monzo (a regulated UK bank) feeds real compliance fluency into Otto
+ Named, benchmarked production agent with disclosed resolution-rate and QA-pass-rate figures
+ Venture-backed ($13M+ Series A) with runway to keep investing in the product
+ UK domicile with a narrow, deep focus on regulated financial services specifically
- Very narrow focus (financial-services customer operations) — not a fit for other verticals or broader custom agent builds
- Small team (~46 employees) limits capacity and account-management bandwidth
- As a product company rather than a services firm, engagement is closer to platform licensing than bespoke development
Belitsoft
+ Two decades of vertical delivery experience in healthcare, fintech, and e-learning
+ Poland and Latvia delivery centers sit within the EU for data-residency purposes
+ Founded 2004 with continuous operating history
+ Existing sector expertise helps agentic work meet vertical-specific compliance and workflow needs
- Georgia delivery office sits outside EU jurisdiction — worth confirming which team works on a given project
- Reported employee counts vary widely across sources, worth confirming directly
- Agentic AI is a newer addition to a generalist custom-software practice

Who should choose Gradient Labs?

Gradient Labs is the right choice for uK and European financial-services firms wanting a narrow, deeply regulatory-fluent autonomous customer-operations agent..

Otto, a named production agent for regulated financial-services customer operations, built by founders with direct Monzo banking-compliance experience.. Minimum engagement starts at Not published. Works best with clients in Financial Services, Banking.

Who should choose Belitsoft?

Belitsoft is the right choice for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check..

Two decades of vertical delivery history in e-learning, healthcare, and fintech, with a mostly-EU (Poland, Latvia) delivery footprint.. Minimum engagement starts at $20K (per company website; independently unverifiable). Works best with clients in Healthcare, Financial Services, Technology & SaaS.

Decision matrix: Gradient Labs vs Belitsoft

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Belitsoft
You need a large dedicated team for an ongoing programme Belitsoft
Your budget is at the lower end Compare: Gradient Labs (Not published) vs Belitsoft ($20K (per company website; independently unverifiable))
You need specialist depth in a specific vertical Belitsoft
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: Gradient Labs vs Belitsoft

Use case Gradient Labs fit Belitsoft fit Winner
Regulated financial-services firms wanting a purpose-built autonomous customer-operations agent Strong Limited Gradient Labs
Banking or insurance clients needing compliance-fluent agent behavior out of the box Strong Limited Gradient Labs
European healthcare or fintech buyers wanting sector-matched reference contracts Limited Strong Belitsoft
E-learning platforms adding AI tutoring or advisory agents Limited Strong Belitsoft
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Limited Both equally

Verdict: Gradient Labs vs Belitsoft

Gradient Labs (4.3/5) is the stronger overall choice for most AI Agent Development projects. Otto, a named production agent for regulated financial-services customer operations, built by founders with direct Monzo banking-compliance experience.. It is best for uK and European financial-services firms wanting a narrow, deeply regulatory-fluent autonomous customer-operations agent..

Belitsoft (3.7/5) is the better choice when european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check.. If your situation matches those criteria, Belitsoft is a competitive option.

Related comparisons

Gradient Labs vs Belitsoft FAQ

Is Gradient Labs better than Belitsoft?

Gradient Labs (4.3/5) scores higher overall, but "better" depends on your use case. Gradient Labs is better for uK and European financial-services firms wanting a narrow, deeply regulatory-fluent autonomous customer-operations agent.. Belitsoft is better for european healthcare, fintech, and e-learning buyers wanting sector-specific reference contracts to check..

How do Gradient Labs and Belitsoft differ in pricing?

Gradient Labs uses retainer, platform licensing pricing with a minimum engagement of Not published. Belitsoft uses fixed project, dedicated team pricing with a minimum engagement of $20K (per company website; independently unverifiable). Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Gradient Labs or Belitsoft?

Belitsoft 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 Gradient Labs and Belitsoft?

Gradient Labs's primary differentiator is: otto, a named production agent for regulated financial-services customer operations, built by founders with direct monzo banking-compliance experience.. Belitsoft's primary differentiator is: two decades of vertical delivery history in e-learning, healthcare, and fintech, with a mostly-eu (poland, latvia) delivery footprint.. They also differ in team size (11–50 vs 51–400), minimum engagement (Not published vs $20K (per company website; independently unverifiable)), and primary industries served (Financial Services, Banking vs Healthcare, Financial Services).

Last reviewed: August 2026. Verify all details directly with each company before making a decision.