Certainly vs Decagon AI

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated August 2026

Certainly

Certainly Group ApS

Autonomous AI agents that resolve conversations end to end

Enterprise

79% verification coverage

Decagon AI

Decagon AI, Inc.

The AI concierge for every customer

Enterprise

74% verification coverage

Trust & Reliability

Certainly

Uptime:99.9%Status page

Users:1K-10K

Customers (per vendor):Feastables, Quad Lock, Rat & Boa

GDPR

Decagon AI

Uptime:99.960%Status page

Customers (per vendor):Chime

SOC 2

HIPAA

Overall Winner: Certainly

7.2/10 vs Decagon AI at 6.5/10

Leads in:

Integration

Customization

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Certainly

7.2

avg score

Decagon AI

6.5

avg score

Certainly leads overall — particularly in Customization and Integration.

Decagon AI has an edge in Compliance & Data Protection.

Based on 12 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Certainly

7.2 / 10

Certainly

Best For

Enterprise CX teams automating 40,000+ monthly conversations across multiple channels

D2C brands seeking to drive revenue and increase AOV through conversational commerce

Financial services companies needing 24/7 multilingual support with high containment rates

Global e-commerce businesses aiming to improve resolution rates and agent productivity

Consider Alternatives If

Individual users or very small businesses with limited budgets for enterprise solutions

Teams looking for a simple, free chatbot builder without advanced agentic capabilities

Organizations that require full SOC 2 or ISO 27001 certification upfront without NDA

Decagon AI

Best For

Enterprise customer service teams modernizing support operations with AI agents

Large organizations seeking to unify customer experiences across voice, chat, and email channels

CX leaders aiming to reduce support costs and increase deflection rates with AI

Companies requiring robust testing, observability, and governance for AI agent deployments

Consider Alternatives If

Individual developers or small teams looking for a free or low-cost agent framework

Companies seeking an open-source solution for self-hosting and deep customization

Agents focused on internal operations, coding, or data analysis rather than customer interaction

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Certainly is best for

🤖Automation & Agents9.0🎧Customer Support7.8💬Chat & Conversation7.0

Decagon AI is best for

🤖Automation & Agents9.0🎧Customer Support7.6💬Chat & Conversation7.0

Filter by your use case:

Pros & Cons

Certainly

Pros

Supports 200+ LLM models via OpenRouter, Anthropic, Google, and OpenAI with zero vendor lock-in
Automatic failover between AI providers ensures continuous service availability
Comprehensive AI reporting provides insights into traffic, business impact, and customer sentiment
GDPR compliant with EU data residency and no customer data used for model training
Dedicated implementation and success teams ensure rapid deployment and continuous optimization
Offers a 3-month pilot option with 7-day cancellation notice for flexible evaluation

Cons

Pricing starts at €500/month, which may be prohibitive for small businesses or individual users
AI usage is billed at provider rates plus a 20% surcharge, adding to overall cost
SOC 2 and ISO 27001 are only 'aligned' rather than fully certified, requiring NDA for attestation status
No explicit mention of a free tier or self-service free trial, focusing on pilot programs
The platform is designed for enterprise-level complexity, potentially overwhelming for simpler use cases

Decagon AI

Pros

Define agent workflows in natural language (AOPs) for faster iteration without coding
Unified intelligence layer ensures consistent customer experiences across all channels
Robust testing, observability, and experimentation tools for continuous agent improvement
Built-in AI guardrails for bad actor detection and hallucination prevention
Comprehensive analytics suite to derive insights from customer conversations

Cons

Primarily designed for enterprise customers, potentially limiting accessibility for smaller businesses
Focus on customer service may not suit agents for other domains like coding or research
Requires integration with existing support tools, which may involve setup effort
Natural language AOPs may still require some level of structured thinking for complex workflows
No explicit mention of self-hosting options, suggesting a cloud-only deployment

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Output Quality5

Value for Money5

Customization5

Support5

Integration5

Accuracy & Reliability5

Compliance & Data Protection5

Performance5

Task Completion5

Tool Use Correctness5

Planning Quality5

Dimension Comparison

Certainly

7.2

/ 10

Your pick

Decagon AI

6.5

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Certainly

6.0

Decagon AI

7.0▲ +1.0

Output Quality

How accurate, reliable, and useful are the outputs this product generates?

Certainly

8.0

Decagon AI

8.0

Value for Money

How well does the pricing match the features and output quality delivered?

Certainly

7.0

Decagon AI

7.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Certainly

7.0▲ +4.0

Decagon AI

3.0

Support

How strong is the documentation, customer support, community, and learning resources?

Certainly

7.0

Decagon AI

7.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Certainly

8.0▲ +7.0

Decagon AI

1.0

Accuracy & Reliability

Factual accuracy and hallucination resistance

Certainly

8.0

Decagon AI

8.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, aggregated from verified compliance signals

Certainly

4.0

Decagon AI

6.0▲ +2.0

Performance

Calculated

Latency + throughput speed

Certainly

8.0

Decagon AI

8.0

Task Completion

End-to-end task success rate

Certainly

8.0

Decagon AI

8.0

Tool Use Correctness

Picks the correct tool + correct arguments

Certainly

8.0

Decagon AI

8.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Certainly

7.0

Decagon AI

7.0

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Certainly

Task

Decagon AI

8.0

Ticket Management

7.0

8.0

Auto Resolution

8.0

7.0

Knowledge Base

7.0

Live Chat

7.0

Sentiment Analysis

6.0

7.0

Escalation Rules

7.0

9.0

Multi Channel Support

9.0

6.0

Response Templates

7.0

8.0

Sla Tracking

7.0

Customer Satisfaction

7.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Certainly or Decagon AI?

Both are strong options. Certainly is a strong choice, while Decagon AI is a strong choice. The best choice depends on your specific use case, budget, and workflow requirements.

Is Certainly cheaper than Decagon AI?

Certainly starts at $578.35/month (enterprise model) with a free trial. Decagon AI starts at free (enterprise model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Certainly and Decagon AI?

Certainly — "Autonomous AI agents that resolve conversations end to end". Decagon AI — "The AI concierge for every customer". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

Can I use Certainly and Decagon AI together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Certainly and Decagon AI with other tools and save your AI toolkit.

Does Certainly or Decagon AI have a free plan?

Certainly is a paid tool with a free trial. Decagon AI is a paid tool. Always verify current pricing directly with the vendor.

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