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Test your messaging
before it ships.

Compare up to three variants of ad copy, subject lines, headlines, taglines, or value props against synthetic audiences. Get the winner, the reasoning per segment, and the language your audience uses. From $8 per test.

7-day trial · 2 free researches · No credit card

86%

Recall against expert-published research findings — validated against Baymard Institute and Nielsen Norman Group.

< 30 min

From message variants to a shippable report — per test.

$8 per test

Effective cost on the Pro plan. Unlimited message tests, no credit ceiling.

500+ teams

Agencies, SaaS teams, and consultants using Articos to test messaging before launch.

The reality

Most messaging ships without being tested. So it ships on gut.

The hero headline gets rewritten six times, debated on Slack, and shipped on whichever version won the last meeting. Three ad variants sit in a Google Doc until the team picks the one that “feels right.” The email subject line goes out with whichever version someone wrote at 11pm on Tuesday.

Traditional message testing takes 2 to 4 weeks and costs thousands per round through research panels. So teams reserve it for the campaigns big enough to earn the budget. Everything else ships on instinct, which means everything else is a bet.

Sample
Slack · Ad copy test
A
Stop losing decisions in email threads.
Clarity
61%
Resonance
55%
B
Move at the speed of your team — not your inbox.
WINNER
Clarity
89%
Resonance
86%
C
One place for every conversation that matters.
Clarity
73%
Resonance
68%

You'll learn which one lost — after paid spend already paid for the lesson.

The shift

Message testing you can afford to run on every ship.

A message test on Articos takes 30 minutes and costs $8. Drop in three variants of any messaging asset, define the audience, and get back a structured report with clarity per variant, segment-level winner, and the exact language your audience uses.

That economics shift changes what you test. The category launch still gets one. So does the email subject line, the retargeting ad, the LP hero variant, the pricing page hook, and the LinkedIn post the CEO wrote last night. Same architecture every test.

Every messaging decision your team ships

Six recurring message tests, one platform.

The work most teams skip because a panel test isn't budget-defensible now runs in 30 minutes at $8. Test ad copy, email, headlines, taglines, value props, and CTAs on one message testing tool. Same rigor every time.

01Ad Copy Testing

Test three ad concepts before paid spend goes live.

Meta, Google, or LinkedIn creative. Find the duds before CAC absorbs them.

Testing 3 LinkedIn ad hooks for a fintech launch. Get the winner in 30 minutes.

02Email Testing

Validate the email before it hits 50,000 inboxes.

Three subject lines, three body framings, or three CTAs. See open likelihood and objections per segment.

Nurture sequence email A/B/C. Ship the version that earns the reply, not the one that sounded clever in review.

03Value Prop Testing

Validate your value prop before the homepage rewrite.

Multiple framings side-by-side. Get clarity, resonance, and the exact words your audience uses.

SaaS team testing 3 value-prop framings. Find out which converts your ICP and which confuses them.

04Hero Headline Testing

Pick the hero headline before creative production begins.

Two or three hero variants tested for clarity, resonance, and segment-level preference.

Growth team testing 2 headlines for a paid landing page. Kill the underperformer before traffic teaches you.

05Tagline Testing

Test taglines and positioning before committing the GTM.

Two or three hypotheses tested against your audience before the launch deck or website rebuild.

"Category leader" vs "cheaper alternative" vs "AI-native challenger." See which one your ICP can repeat back.

06CTA Testing

Pick the CTA that converts, not the one that sounds clever.

Three CTAs tested against the exact segment about to see them, with click likelihood and reasoning per persona.

"Get Started" vs "Book a Demo" vs "See How It Works." Ship the one that earns the click.

The process

Four steps. Thirty minutes. One report you can ship.

Articos works as an automated message testing platform — comparing up to three variants against synthetic audiences before the message goes live.

01
Drop in your variants

Upload up to three versions of one message — ad copy, subject lines, headlines, taglines, value props, positioning lines, or CTAs. Articos handles them as a single comparison test, not three separate studies.

02
Define your audience

Select role, seniority, industry, company size, geography, and buyer stage. Articos generates 12 to 50 synthetic personas, including five built-in dissenters per panel calibrated to push back on your message.

03
Interviews run automatically

Each persona reacts independently, hypothesis-blind. They can't see your winning criteria or each other's responses. Architectural bias control, not moderator training.

04
Get the report

Findings per variant — clarity score, resonance, objection patterns, language your audience uses, and the winner with reasoning per segment. Evidence chains cite every finding to a specific persona quote. Export as PDF, white-label for client delivery.

Sample report
Variant A
Clarity
68%
Resonance
71%
Variant BWinner ↑ Recommended
Clarity
84%
Resonance
79%
Variant C
Clarity
61%
Resonance
58%
“The inbox-speed variant hit immediately. We lose hours to email chains every day — that line names the actual problem, not just the feature.”Synthetic persona · P7 · Operations Lead
What comes back

A report you'd ship to a client or a board.

Every message test returns a structured report, not a transcript dump. Built for the room where the decision gets made — an exec review, a client pitch, or Monday morning stand-up.

Findings per variant.

Clarity, resonance, believability, and segment-level reactions.

Segment-level winners, not aggregated averages.

Which variant wins for enterprise buyers, SMBs, decision-makers, or price-sensitive segments. Separately, not averaged into a single winner that hides the trade-off.

Evidence chains on every theme.

Each finding traces back to a specific persona, a specific question, and the exact quote that generated it.

Confidence scores per theme.

Know which findings hold across personas, and which need a closer look.

White-label export.

Your logo, your colors. Ship the PDF to a client, a board, or your CEO without rewriting a line.

Grounded in science

Same AI everyone uses. Completely different architecture.

Articos is the only AI message testing platform with a peer-reviewed validation paper. Personas are built on Big Five personality (NEO-PI-R, 30 facets), Hofstede's six cultural dimensions across 69 countries, Rogers' diffusion model for stance diversity, ACT-R cognitive architecture, hypothesis-blind interviews, and a six-stage adversarial review pipeline.

Built onBig Five (NEO-PI-R)Hofstede 6DRogers DiffusionACT-RBaymard InstituteNielsen Norman Group
Research Fidelity
86%

Recall against expert-published findings, validated against Baymard Institute and Nielsen Norman Group.

Research Fidelity Index, 46 studies across 9 domains
Cross-domain
46 studies

Validated across e-commerce, SaaS, healthcare, fintech, consumer mobile, education, enterprise, cross-cultural, and mixed research domains.

Grounded Simulation peer-reviewed study, Articos Research (2026)
Accuracy vs. raw AI
7.5×

More accurate than prompting the same AI model directly. Same model, different architecture.

Five-condition comparison, p < 0.002 (Wilcoxon signed-rank)
The message testing landscape

How Articos compares to other message testing tools.

CapabilityTraditional research firmPanel platforms (e.g., Wynter)Bare prompting (ChatGPT)ArticosTry free →
Time per test2–4 weeks12–48 hours per roundMinutesUnder 30 minutes
Cost per test$2,000–$8,000$200–$500 credit-based~$0.10$8 effective on Pro
Variants per testMultiple, but weeks per round1 per preference testUnstructuredUp to 3 per test
MethodologyResearcher-led, manualPanel-led, survey-basedGenerated textBehavioral science architecture
Stance diversityRecruitment-dependentRecruitment-dependentStereotype defaultsEngineered — 5 dissenters per panel
Hypothesis blindnessModerator trainingSurvey design dependentNoneArchitectural
Evidence per findingInterview transcriptsSurvey outputGenerated textEvery finding cited to a persona quote
Segment-level winnerSometimesAggregated onlyNot availablePer-segment winner and reasoning
Niche audiencesSlow to sourceAudience must exist in panelStereotype defaultsInstant — 69 countries, 37 industries
Best forBoard-level decisionsQuarterly launchesBrainstormingDaily, weekly, and launch-cycle messaging work
A message testing platform lets teams test multiple variants of a message — ad copy, email subject lines, headlines, taglines, value props, or CTAs — against a defined audience before launch. Articos tests up to three variants at once against 12 to 50 synthetic personas, returning the winner, segment-level breakdown, and reasoning per finding. Under 30 minutes, at $8 per test.
A/B testing typically runs in-market. You ship two versions to real traffic and measure which converts better. Message testing on Articos runs pre-launch. You test against synthetic audiences before spend goes live, so you're shipping the winning version, not learning which one lost.
Ad copy for Meta, Google, and LinkedIn, email subject lines and body copy, hero headlines, taglines, positioning lines, value propositions, CTAs, sales enablement copy, LinkedIn posts, and product descriptions. If it's a message about to ship, you can test it.
Up to three variants per test. If you have five variants, run them as two overlapping tests. Most teams find three is the right constraint — it forces sharper writing before the test even runs.
Articos is validated at 86% recall against expert-published research findings, benchmarked against Baymard Institute and Nielsen Norman Group across 46 studies in 9 industries. 7× more accurate than direct prompting of general LLMs. Peer-reviewed in the Grounded Simulation paper.
Wynter runs on a B2B human panel — deep for quarterly research, credit-based pricing, 12 to 48 hour turnarounds. Articos runs on synthetic audiences — under 30 minutes per test, unlimited on the $199/mo Pro plan, no credit ceiling. Better fit for teams shipping messaging weekly, not quarterly.
Yes. One $199/mo Pro subscription includes unlimited message tests across every client. White-label reports built in — your logo, your colors, ready for client delivery.
Direct ChatGPT prompting generates 142 themes per study at 4.5% precision — a 22:1 noise ratio. Articos produces 17 focused themes with hypothesis-blind interviews, stance diversity, cognitive memory, and a six-stage adversarial review pipeline. 7× more accurate, p < 0.002.
Upload up to three versions of the message — ad copy, subject line, headline, tagline, or value prop. Define the audience by role, industry, geography, and buyer stage. Articos runs each variant against 12 to 50 synthetic personas, returning clarity per variant, resonance, segment-level winner, objection patterns, and the language each segment uses. Under 30 minutes, at $8 per test.
The B2B message testing category includes panel-based platforms like Wynter (deep B2B panel, quarterly cadence), traditional research firms ($5,000–$30,000 per study), and synthetic-audience platforms like Articos ($8 per test, unlimited on Pro). Articos is peer-reviewed at 86% human-researcher accuracy against Baymard Institute and Nielsen Norman Group. Best for teams shipping messaging weekly and needing under-30-minute turnaround.
Upload two or three email variants — subject lines, body copy, or CTAs — to Articos. Define the audience by role, industry, and segment. Articos returns which variant each segment prefers, with the reasoning per persona quote. Ship the winner without waiting for send data. Under 30 minutes per test.
Yes. 7-day trial with 2 free researches, no credit card required. Or on-demand from $29 for two tests, lifetime access, no expiry.

Stop shipping messaging your audience hasn't seen.

Pick a message you're about to ship — an ad hook, an email subject line, a value prop, or a tagline. Drop in three variants. Get the report. Then decide.

7-day trial · 2 free researches · No credit card