{"site":{"name":"Koji","description":"AI-native customer research platform that helps teams conduct, analyze, and synthesize customer interviews at scale.","url":"https://www.koji.so","contentTypes":["blog","documentation"],"lastUpdated":"2026-04-30T11:58:49.487Z"},"content":[{"type":"documentation","id":"1e226e54-f5dc-4c1b-9643-213111327a4e","slug":"user-research-cost-calculator-2026","title":"User Research Cost Calculator: AI Interviews vs Traditional (2026)","url":"https://www.koji.so/docs/user-research-cost-calculator-2026","summary":"Traditional moderated user interviews cost €90 to €540 each in 2026 once you add recruiting, moderation, transcription, and analysis. Koji AI-moderated interviews cost €1 (text) to €3 (voice) per conversation, with auto-analysis and real-time reports included. A 30-interview study costs €7,500+ traditionally vs €30 to €90 on Koji — a 40× to 250× cost reduction. Use this calculator to estimate your own 2026 research budget by sample size, modality, and plan.","content":"## The Bottom Line\n\nA single moderated user interview costs **€90 to €260 all-in** in 2026 once you add recruiting, moderator time, transcription, and analysis. AI-moderated platforms like Koji bring the per-interview cost to **€1 to €3** for the conversation itself, with reports auto-generated. For a typical 30-interview discovery study, traditional methods land between **€2,700 and €7,800**, while running the same study on Koji costs **€29 to €89** on a paid plan.\n\nThis calculator walks through the real line items so you can build an honest budget — or justify a switch to AI-moderated research.\n\n## What Goes Into the Cost of a User Interview\n\nMost teams underestimate research spend because they only count the obvious items. The real cost stack has six layers:\n\n1. **Participant incentive** — €25 to €150 per session depending on persona seniority\n2. **Recruiting fee** — €40 to €120 per participant via panel platforms\n3. **Scheduling and coordination** — 30–45 minutes of researcher time per slot\n4. **Moderator time** — 60 minutes per session plus 30 minutes of prep\n5. **Transcription** — €0.10 to €1.50 per minute, or 4–6× hours of researcher review\n6. **Analysis and synthesis** — typically equal to or greater than the interview time itself\n\nTraditional research budgets often only show line items 1 and 2, then surprise teams when items 3–6 consume the rest of the quarter.\n\n## Per-Interview Cost: Traditional vs AI\n\n### Traditional moderated interview (mid-market, B2B SaaS persona)\n\n| Line item | Low | High |\n|---|---|---|\n| Recruiting fee | €40 | €120 |\n| Participant incentive | €25 | €150 |\n| Scheduling overhead (0.5h × €60/h) | €30 | €30 |\n| Moderator time (1.5h × €60/h) | €90 | €90 |\n| Transcription | €6 | €60 |\n| Analysis (1.5h × €60/h) | €90 | €90 |\n| **Per-interview total** | **€281** | **€540** |\n\n### Koji AI-moderated interview\n\n| Line item | Cost |\n|---|---|\n| Text interview credit | 1 credit (≈ €1) |\n| OR voice interview credit | 3 credits (≈ €3) |\n| Auto-transcription | included |\n| Auto-analysis (themes + structured data) | included |\n| Real-time report aggregation | included (5 credits per refresh) |\n| **Per-interview total** | **€1 to €3** |\n\nKoji uses a flat overage rate of **€1 per credit** across all paid plans. On the Insights plan (€29/month, 29 included credits) you get roughly 29 text interviews or 9 voice interviews bundled at no marginal cost. On the Interviews plan (€79/month, 79 included credits) you can run up to 79 text or 26 voice interviews monthly before any overage.\n\n## Calculator: 30-Interview Discovery Study\n\nLet us run the math on a common scenario — 30 user interviews to validate a new feature.\n\n### Traditional (low estimate)\n\n- Recruiting: 30 × €40 = **€1,200**\n- Incentives: 30 × €25 = **€750**\n- Researcher time (3h/interview avg): 90h × €60 = **€5,400**\n- Transcription: 30 × 60min × €0.10 = **€180**\n- **Total: €7,530**\n\n### Traditional (mid estimate)\n\n- Recruiting + incentives: €4,500\n- Researcher time + analysis: €5,400\n- Transcription + tooling: €600\n- **Total: ~€10,500**\n\n### Koji Insights plan (text interviews)\n\n- Plan fee: **€29/month** (includes 29 credits)\n- 1 overage credit: **€1**\n- Report refreshes (2 × 5 credits = 10 over the month, but covered in plan)\n- **Total: €30**\n\n### Koji Interviews plan (voice + text mixed)\n\n- Plan fee: **€79/month** (includes 79 credits)\n- 30 voice interviews × 3 credits = 90 credits → 11 overage × €1 = €11\n- **Total: €90**\n\nThat is a **40× to 250× cost reduction** depending on whether you compare to the low end or high end of traditional methods. And you finish in days, not weeks.\n\n## Where the AI Savings Actually Come From\n\nThe biggest cost drivers in traditional research are **researcher time** and **recruiting overhead** — not the participant incentive. Koji eliminates both:\n\n- **Self-serve interview link.** Share one link and dozens of participants can interview themselves in parallel. No scheduling, no Calendly tag, no rescheduling.\n- **AI moderator.** A Koji interview runs like a real conversation — the AI asks the question, listens, and follows up with up to three probing questions per topic (configured by `maxFollowUps` in the question definition). That replaces a researcher sitting on each call.\n- **Auto-transcription + auto-analysis.** Every conversation is transcribed, themed, and mapped to your structured questions automatically. The themes, quotes, and per-question distributions are ready in real time.\n- **Quality-gated billing.** Only conversations that hit the quality gate (score 3 or higher) consume credits. If a participant abandons after 30 seconds or types nonsense, no credit is charged.\n\nFor structured questions (NPS, willingness-to-pay, ranking, etc.), Koji additionally auto-aggregates per-question distributions — meaning your synthesis time on quantitative questions drops to near zero.\n\n## Recruiting Cost: AI Saves You Here Too\n\nThe panel-recruit model charges €40 to €120 per participant on top of the incentive — that is pure overhead. Because Koji interviews are async and self-serve, you can recruit through cheaper channels:\n\n- **In-product link** to existing users (free)\n- **Email list invitation** (free, except small CRM costs)\n- **Community / Slack / LinkedIn outreach** (free)\n- **Paid ads to a custom landing page** (typically €5–€20 per qualified completion)\n\nKoji also includes **screener questions** — a configurable intake form that filters participants by role, segment, or any custom attribute before the interview begins. This replaces the panel platform’s screening fee for many B2C and prosumer studies.\n\n## When Traditional Research Still Wins\n\nLet us be honest about the tradeoffs. Traditional moderated interviews are still the right call when:\n\n- You need **high-empathy ethnographic depth** with body language and a moderator reading the room\n- Your participants are **regulated personas** (e.g., specific medical specialists) where panel recruiting is the only path\n- You are running a **single high-stakes interview** with an executive where fees pale next to the strategic value\n\nFor everything else — discovery, feature validation, NPS root-cause, willingness-to-pay, customer journey mapping, churn analysis, message testing — AI-moderated interviews on a platform like Koji are dramatically cheaper, faster, and more rigorous.\n\n## How to Estimate Your Own Budget\n\nUse this five-step framework to build a defensible 2026 research budget:\n\n1. **List your studies for the quarter.** A typical product team runs 4–8 studies per quarter.\n2. **Pick your sample size per study.** 8–15 for early discovery, 25–50 for validation, 100+ for quantitative segments.\n3. **Choose the modality.** Text mode for higher volume and async; voice for nuanced, conversational depth.\n4. **Calculate Koji cost.** `studies × interviews_per_study × (1 or 3 credits) × €1 + plan fee`.\n5. **Compare to traditional.** Multiply by €280 (low) or €450 (mid) to see what you would otherwise spend.\n\nFor most teams, Koji’s **Interviews plan at €79/month** covers 26+ voice interviews or 79+ text interviews — enough for 2–3 full studies per month before any overage. Annualized at €790, that is less than the cost of **two** traditional moderated interviews.\n\n## FAQ Snapshot\n\n- **What does each Koji credit cost?** €1 in overage, but bundled cheaper inside paid plans.\n- **Do I pay for failed interviews?** No — the quality gate ensures only scored 3+ conversations consume credits.\n- **Are voice and text interviews priced the same?** No — text = 1 credit, voice = 3 credits.\n- **What does report refresh cost?** 5 credits per refresh, billed only when you regenerate analysis.\n\n## Related Resources\n\n- [Plan Comparison Guide](/docs/plan-comparison-guide) — credits, plans, and overage explained\n- [Structured Questions Guide](/docs/structured-questions-guide) — the 6 question types that drive auto-aggregation\n- [How to Automate User Research](/docs/how-to-automate-user-research) — operating an AI-first research practice\n- [Koji vs UserTesting](/docs/koji-vs-usertesting) — head-to-head feature and pricing comparison\n- [Generating Research Reports](/docs/generating-research-reports) — what real-time report aggregation looks like\n- [Plan Comparison: Insights vs Interviews](/docs/plan-comparison-guide) — choosing the right tier for your team","category":"Comparisons","lastModified":"2026-04-30T03:15:24.058448+00:00","metaTitle":"User Research Cost Calculator 2026: AI vs Traditional Pricing | Koji","metaDescription":"See exactly how much user research costs in 2026. Calculate per-interview spend, compare AI-moderated vs traditional methods, and build a defensible research budget.","keywords":["user research cost calculator","cost of user interviews","user research pricing","how much does user research cost","user research budget 2026","ai interview cost"],"aiSummary":"Traditional moderated user interviews cost €90 to €540 each in 2026 once you add recruiting, moderation, transcription, and analysis. Koji AI-moderated interviews cost €1 (text) to €3 (voice) per conversation, with auto-analysis and real-time reports included. A 30-interview study costs €7,500+ traditionally vs €30 to €90 on Koji — a 40× to 250× cost reduction. Use this calculator to estimate your own 2026 research budget by sample size, modality, and plan.","aiPrerequisites":["Basic understanding of user research","Familiarity with traditional research workflows"],"aiLearningOutcomes":["Calculate true per-interview cost across all line items","Compare AI vs traditional research budgets","Pick the right Koji plan for your study volume","Build a defensible 2026 research budget"],"aiDifficulty":"beginner","aiEstimatedTime":"8 min read"}],"pagination":{"total":1,"returned":1,"offset":0}}