Plan Comparison Guide
Compare Koji's credit-based pricing plans — Free, Insights, Interviews, and Enterprise — to find the right fit for your research needs.
Koji Pricing Plans Overview
Koji uses a credit-based pricing model designed so you only pay for quality conversations. Every plan includes the quality gate — interviews scoring below 3 out of 5 are free and don't consume credits.
All prices are in EUR (€). Annual plans save you 2 months free.
Plan Comparison
Free Plan — €0/month
Perfect for trying Koji or running occasional research.
- Credits: 10 starter credits (one-time grant on signup)
- Active studies: Up to 5
- Text interviews: ✅ (1 credit each)
- Voice interviews: ❌
- Structured questions: ✅ (scale, single choice, multiple choice, ranking, yes/no, open-ended)
- Multi-language support: ✅ (30+ languages)
- Report generation: 5 credits per refresh
- Quality gate: ✅ Included
- API access: ❌
- Overage billing: Not available
- Export options: PDF reports
Insights Plan — €29/month (€290/year)
For teams running regular text-based research at scale.
- Credits: 29 credits/month included
- Active studies: Up to 5
- Text interviews: ✅ (1 credit each)
- Voice interviews: ❌
- Structured questions: ✅ (scale, single choice, multiple choice, ranking, yes/no, open-ended)
- Multi-language support: ✅ (30+ languages)
- Branded intake forms: ✅
- Custom interview URLs: ✅
- Website embed: ✅
- Public reports: ✅ (shareable report links)
- Report generation: 5 credits per refresh
- Quality gate: ✅ Included
- API access: ❌
- Overage billing: €1/credit (configurable cap)
- Export options: PDF reports, CSV export
Interviews Plan — €79/month (€790/year) — Most Popular
For teams that need voice interviews, API access, and unlimited studies.
- Credits: 79 credits/month included
- Active studies: Unlimited
- Text interviews: ✅ (1 credit each)
- Voice interviews: ✅ (3 credits each)
- Structured questions: ✅ (scale, single choice, multiple choice, ranking, yes/no, open-ended)
- Multi-language support: ✅ (30+ languages)
- Branded intake forms: ✅
- Custom interview URLs: ✅
- Website embed: ✅
- Public reports: ✅ (shareable report links)
- Report generation: Free (unlimited refreshes)
- Quality gate: ✅ Included
- API access: ✅ Full API, webhooks, headless mode
- MCP server: ✅ Manage studies from Claude, Cursor, and other AI assistants
- CRM import: ✅
- Overage billing: €1/credit (configurable cap)
- Export options: PDF, CSV, JSON export, custom link previews
Enterprise — Custom Pricing
For organizations with advanced security, compliance, or volume needs.
- Credits: 500+/month (negotiable per contract)
- Active studies: Unlimited
- All Interviews features plus:
- SSO/SAML: ✅
- Custom domain: ✅
- White-label: ✅
- Dedicated success manager: ✅
- Custom integrations: ✅
How Credits Work
Credits are the currency of Koji. Different actions cost different amounts:
| Action | Credit Cost |
|---|---|
| Text chat interview | 1 credit |
| Voice interview | 3 credits |
| Report refresh | 5 credits (free on Interviews+) |
Key rules:
- Credits reset monthly on your billing anniversary
- The quality gate protects your budget — conversations scoring below 3/5 are completely free
- Overage credits are billed at a flat €1/credit on paid plans
- You can set an overage cap to control unexpected costs
What Are Structured Questions?
Koji now supports quantitative structured questions alongside its signature conversational depth. Every plan includes:
- Scale questions (1-5, 1-7, 1-10) — for NPS, CSAT, satisfaction ratings
- Single choice — radio-button-style selection
- Multiple choice — multi-select options
- Ranking — drag-and-drop preference ordering
- Yes/No — binary questions
- Open-ended — free-text for qualitative depth
The AI interviewer delivers these conversationally, naturally weaving quantitative data collection into qualitative conversations. This makes Koji the only platform that combines survey-scale data collection with interview-depth insights.
Quick Decision Framework
| If you need... | Choose... |
|---|---|
| To try Koji risk-free | Free |
| Regular text-based surveys and research | Insights (€29/mo) |
| Voice interviews, API access, unlimited studies | Interviews (€79/mo) |
| High volume, dedicated support, custom contracts | Enterprise |
Common Scenarios
| Scenario | Recommended Plan |
|---|---|
| Startup validating a product idea with 20 interviews/month | Insights |
| Product team running weekly voice research sprints | Interviews |
| Agency managing research for multiple clients | Interviews or Enterprise |
| Research ops team with 100+ monthly interviews | Enterprise |
| Student or freelancer doing occasional research | Free |
| Customer success team running NPS and churn surveys | Insights or Interviews |
| HR team conducting employee engagement surveys | Insights |
Annual Billing Discount
Save 2 months free by choosing annual billing:
| Plan | Monthly | Annual | You Save |
|---|---|---|---|
| Insights | €29/mo | €290/yr (€24.17/mo) | €58/yr |
| Interviews | €79/mo | €790/yr (€65.83/mo) | €158/yr |
What All Plans Include
Every Koji plan — including Free — comes with:
- AI-guided conversational interviews
- Structured quantitative questions (scale, choice, ranking, yes/no)
- Multi-language support (30+ languages)
- Research methodology frameworks (Mom Test, JTBD, Custom)
- Full question library with probe points and guardrails
- Study publishing and shareable interview links
- Automated insights and analysis
- Response filtering and transcript viewing
- PDF research reports
- Quality gate on every conversation
The quality gate is active on every plan, ensuring you never pay for low-quality responses.
Related Articles
Bring Your Own Key (BYOK)
Use your own AI provider API keys with Koji for greater control over costs and model access.
Referral Program
Earn credits by referring colleagues and friends to Koji.
Generating Research Reports
Create comprehensive aggregate reports across all your interviews — including summaries, themes, recommendations, and statistics.
Publishing & Sharing Reports
Make your research reports accessible to stakeholders, team members, and decision-makers.
API Authentication
Learn how to authenticate with the Koji API using API keys and Bearer tokens.
Upgrading Your Plan
Learn how to upgrade, downgrade, or switch billing frequency between Koji's Free, Insights, Interviews, and Enterprise plans.
Understanding Usage & Credits
Learn how Koji's credit system works — what actions cost credits, how limits are tracked, and how to manage your research budget effectively.
How the Quality Gate Works
Understand Koji's quality gate — conversations scoring below 3/5 are completely free and don't consume credits, protecting your research budget.
Overage Billing Explained
Understand how overage billing works on Koji — flat €1/credit pricing, configurable caps, and how the quality gate protects your budget.
Managing Payment Methods
Learn how to update your credit card, view invoices, access the Stripe billing portal, and manage VAT/tax settings on Koji.
Headless API Overview
Manage interviews programmatically with the Koji REST API — start, message, and complete interviews from your own code.
Dashboard Overview
Navigate your Koji dashboard to manage studies, track interviews, and access research insights.
Koji MCP Integration Overview
Connect Koji to Claude, Cursor, and other AI assistants using the Model Context Protocol (MCP). Manage your entire research workflow conversationally — create studies, run interviews, analyze data, and generate reports without leaving your AI assistant.