Koji vs Attest: AI Customer Interviews vs B2C Consumer Survey Panel (2026)
Attest delivers fast B2C survey data from a 125M+ consumer panel, but it's still a survey tool. Koji runs AI-moderated voice interviews that capture the "why" surveys never reach. Here's the honest, side-by-side breakdown for 2026.
Koji Team
May 27, 2026
Koji vs Attest: AI Customer Interviews vs B2C Consumer Survey Panel (2026)
The short answer: Attest is a strong enterprise-grade consumer survey platform with a managed B2C panel and dedicated researcher support. Koji is an AI-native research platform that runs AI-moderated voice and chat interviews, then thematically analyzes them into shareable reports — automatically. If you need fast, statistically projectable B2C survey data and you're a brand spending five figures a year on consumer research, Attest is a credible choice. If you need the qualitative depth surveys can't deliver — the unprompted "why," the emotional context, the verbatim quotes that move a strategy meeting — Koji is the modern AI-native answer, and it starts at a fraction of the price.
TL;DR comparison
| | Koji | Attest | |---|---|---| | Core method | AI-moderated voice & chat interviews | Closed-ended consumer surveys | | Best for | Discovery, churn, JTBD, message testing, B2B + B2C | Brand tracking, concept testing, B2C consumer profiling | | Audience | Bring your own respondents or use a panel partner | Managed panel of 125M+ consumers across 59 countries | | Follow-up probing | ✅ AI probes in real time, asks "why" automatically | ❌ Static logic — no real-time depth | | Analysis | Automatic thematic analysis + one-click report | AI summaries + crosstabs (manual interpretation) | | Starting price | €29 / month (Insights plan, 29 credits) | Speak to sales — contracts typically $10K+/yr | | Speed to insight | Hours, not weeks | 24–48 hours for field, then manual analysis | | Free trial / self-serve | ✅ Yes — sign up, run a study | ❌ Demo + sales call required |
What Attest actually is
Attest is a B2C consumer research platform built for in-house insights teams at large brands. Their customer logos lead with the usual suspects — Netflix, Unilever, Reddit, Nestlé, Shark Ninja — and that tells you everything about the price point. Attest combines four things into a single subscription:
- A managed consumer panel of 125M+ respondents across 59 countries and 70 languages.
- Survey creation with templates for brand tracking, concept testing, ad testing and consumer profiling.
- AI summaries, crosstabs and statistical significance testing on the response data.
- Dedicated research consultants — actual humans included in every plan to advise on methodology and read-outs.
The pricing model is "one flat audience cost" — you pay a predictable rate per survey regardless of whether 500 or 1,000 people complete it. According to public reports, Attest contracts typically start in the low five figures per year and scale into six figures for global brands, with pay-as-you-go bundles also starting around $2,000 per study. Pricing isn't published publicly; you have to book a demo.
It's a credible product. But it's also a survey product. Every response is bounded by the question you wrote in advance. When a respondent picks "C: Too expensive," there is no follow-up that says what specifically felt too expensive, compared to what, and what would have changed your mind? That follow-up is exactly where strategy lives.
What Koji actually is
Koji is an AI-native customer research platform. You give it a research brief — "find out why power users are downgrading" or "test these three positioning angles with mid-market SaaS buyers" — and the platform:
- Drafts a discussion guide using a mix of structured questions and open-ended prompts across six question types (open-ended, scale, single-choice, multiple-choice, ranking, yes/no).
- Runs AI-moderated voice or chat interviews with your respondents, probing in real time whenever an answer is shallow, contradictory or interesting.
- Transcribes everything, runs automatic thematic analysis, and generates a shareable research report in minutes.
- Lets you steer the analysis through a customizable AI Consultant — ask "what objections came up about pricing?" and get a back-quoted answer in seconds.
The whole thing runs on a credit model: text interviews cost 1 credit, voice interviews cost 3 credits, and a quality gate means only conversations scoring 3+ on engagement actually consume credits. The Insights plan starts at €29/month for 29 credits. The Interviews plan is €79/month for 79 credits. There is no minimum contract, no procurement cycle, and no "talk to sales."
Methodology: surveys vs AI interviews
This is the real divide.
Attest is synchronous closed-ended survey data. You write 10–15 questions, dispatch them to a recruited audience, get answers back in 24–48 hours. Great for "what percentage of US dog owners are aware of brand X?" — terrible for "why did the 27% who recognised us still not buy?"
Koji is asynchronous AI-moderated conversation. The respondent talks (or types) for 10–15 minutes; the AI listens, asks the obvious follow-ups a human researcher would ask, and pushes past surface-level answers. Voice interviews in particular surface 3–4x more usable insight per respondent than equivalent surveys — voice is harder to fake, harder to speed through, and harder to give a one-word answer to. See the deeper comparison: voice interviews vs text interviews.
If your hypothesis is "we know what the answer choices are; we want to know the distribution," Attest wins. If your hypothesis is "we don't actually know what people will say, and that's the whole point," only Koji works.
Pricing: where the real gap shows up
Attest does not publish self-serve pricing. Based on multiple public sources, the entry bundle starts around $2,000 for a single study, while ongoing subscriptions are typically $10,000–$50,000+ per year, scaling with audience volume and number of brands tracked.
Koji's Insights plan starts at €29/month. That gets you 29 credits — enough for roughly 29 text interviews or ~9 voice interviews every month, including the AI moderator, transcription, thematic analysis and reporting. The Interviews plan at €79/month is enough for most product teams running continuous discovery; overage is a flat €1/credit. There is no sales cycle, no panel fee unless you opt in to a recruitment partner, and no procurement bottleneck.
For a startup, scale-up or in-house product team that wants to run real customer research without committing to a five-figure annual contract, that's an order-of-magnitude difference.
Speed to insight
Attest delivers field data fast — usually within 24–48 hours. But that's only the data collection step. Analysis still requires a human (or their dedicated research consultant) to interpret the crosstabs, write up the findings, and turn them into a slide deck.
Koji compresses field + analysis + reporting into one workflow. Your interviews go live as soon as you publish the study, every completed interview is transcribed and themed automatically, and the research report regenerates itself as new data arrives. Most teams have a defensible read-out in under 48 hours from "what should we test?" to "here's what they said and why."
The market context
Three industry data points worth knowing:
- The share of organizations where research is essential to all levels of business strategy nearly tripled in a single year — from 8% in 2025 to 22% in 2026 (User Interviews, State of User Research).
- 66% of teams report higher demand for research in 2026, and 69% of researchers now use AI in at least some of their studies (Maze, Future of User Research 2026).
- The user research and user testing software market was worth $788M in 2024 and is projected to hit $1.3B by 2032 at a 7.4% CAGR (Verified Market Research).
In plain English: demand is up, AI adoption is up, and the tools that ride both waves — AI-native, conversational, automated — are taking share from legacy survey platforms.
When to choose Attest
Pick Attest if:
- You need statistically projectable consumer survey data at sample sizes of n=500+.
- You're an in-house brand or insights team at a B2C company doing regular brand tracking, ad testing, or concept testing.
- You already have a five-figure annual budget for consumer research and want a managed panel and human researcher support included.
Pick Koji if:
- You need qualitative depth, not just distributions — the unprompted "why" behind the choice.
- You're a product team, founder, marketer, or researcher running discovery, churn, win/loss, JTBD, message testing or pricing research.
- You're running B2B research (Attest is built around the B2C panel; B2B audiences require BYO recruitment either way).
- You want a tool you can start using today without a procurement cycle.
- You want AI-moderated voice interviews with automatic thematic analysis — not just AI-summarized survey data.
The honest verdict
Attest is a mature, well-engineered B2C survey platform with a managed panel and a five-figure price tag to match. If that's the problem you have, you'll get value.
But surveys are increasingly the wrong tool for the most valuable research questions a team faces: why customers churn, why a feature isn't landing, why a message resonates with one ICP and not another. Those are conversation problems, not multiple-choice problems. AI-moderated interviews answer them in a way no survey panel ever will — and at a fraction of the cost.
Koji is the platform built for the conversation half of research. If you're evaluating Attest, you owe it to your budget — and your insights — to spend ten minutes trying Koji first.
Try Koji free
No demo. No sales call. No annual contract. Sign up for Koji and run your first AI-moderated interview in under five minutes. Bring your own respondents or connect a panel partner. From research question to themed insight report in hours, not weeks.