Visiby is built for AI citation tracking: it measures exactly where ChatGPT, Perplexity, and Google AI Overviews cite your brand versus your competitors, on a real 172-prompt benchmark. Then it writes the content engineered to close the specific gaps that data reveals, and re-measures whether it worked. It is a closed measure-and-fix loop, self-serve, at a flat per-plan price you can start today.
Writesonic is a mature AI content suite that also added a Generative Engine Optimization tracker, so it shows up in this comparison. If generating content at volume is your first need, it is a capable choice. This page is for the other case: when measuring and closing your AI citation gaps is the job. Run Visiby's free first report to see your baseline before you read further.
What Visiby does: measure, then fix
Most tools in this space stop at a score. Visiby is built so the measurement feeds a fix and the fix gets re-measured. Every weekly run samples ChatGPT, Perplexity, and Google AI Overviews, reports each engine separately, and traces each citation to the exact page and passage the engine quoted, naming the competitor pages and passages winning the slots you are missing. The Action Plan tab, included on every plan, ranks those fixes by opportunity so you know which prompt to tackle first. On Pro, the Brand Entity tab shows how engines characterize you, not just whether they cite you, and Competitor Intelligence tracks who holds the slots you want.
Then it writes. Because the content is engineered from that measured pattern rather than a generic template, one June 2026 run produced 14 content briefs and 35 finished pieces aimed at the exact gaps the citation data found. That is the loop: measure where you are absent, build content from what is actually winning the slot, ship it, and re-measure next week.
The numbers here come from running that pipeline, not from a marketing deck. Its author, Raunaq Arora, is the senior software and AI engineer who built Visiby at FNA Technology.
Where Writesonic fits
Writesonic is a capable, mature product, and a fair comparison says so. It began in 2020 as a broad AI content suite, with more than eighty templates for articles, ad copy, and landing pages, and a writing engine no AI-visibility specialist tries to match because that is what it was built to do. It later added an AI Visibility Tracker that monitors brand mentions across ChatGPT, Gemini, and Google AI Overviews, with broader engine coverage and an Action Center at its top tier (Writesonic AI Visibility Tracker, accessed 2026-06-24). It also ships AI crawler analytics through a Cloudflare integration and self-serve, card-free signup. If you need a content factory first and visibility tracking second, Writesonic is a reasonable single subscription. Visiby is built for the reverse ordering.
Pricing, side by side
Writesonic publishes self-serve tiers organized around its content suite; its in-product visibility recommendations sit on the Enterprise plan (as of June 2026; confirm at writesonic.com/pricing, since the tiers change often). Visiby prices flat per plan, with no per-seat or per-model metering, and includes the ranked Action Plan that tells you what to fix on every tier.
| Tier |  | |
|---|---|---|
| Entry | $79/mo: 3 engines (ChatGPT, Gemini, Google AI Overviews), 50 prompts | $99/mo Starter: 3 engines, weekly refresh, bot analytics (50 prompts, ranked Action Plan, finished deliverables) |
| Mid | $199/mo: same 3 engines, 100 prompts, adds sentiment | $249/mo Pro: 3 engines, weekly refresh, bot analytics (150 prompts, plus Brand Entity, Competitor Intelligence, Sentiment) |
| Top | Enterprise (custom): broader engines, full Action Center | Agency: 3 engines + custom regions, daily refresh, white-label, API, SSO (500+ prompts) |
Visiby's Starter includes weekly refresh, bot analytics that monitor GPTBot, ClaudeBot, PerplexityBot, and Google-Extended access, and the ranked Action Plan, with no expiring content credits to track. Annual billing is charged as ten months for twelve, and the first report is free and runs inside the live product. The cleanest way to compare is value per run, not price per prompt: every Visiby run samples your prompts, traces each citation to the page and passage, and ends in a fix you can ship.
The scored comparison
This AI visibility tools comparison scores on the same six capabilities we use across our AI visibility tools guide, plus pricing transparency and the one axis it turns on: whether content is grounded in measured citation data or generated from templates.
| Capability | | |
|---|---|---|
| Design center | Citation measurement, with content generated to close measured gaps | Content-generation suite with a GEO tracker |
| Core engines | Starter & Pro: ChatGPT, Perplexity, Google AI Overviews; Enterprise/Agency covers custom regions, daily refresh, white-label, API, SSO | 3 at $79/$199 (ChatGPT, Gemini, Google AI Overviews); broader at Enterprise |
| What to fix | Ranked Action Plan included on every plan | In-product recommendations on the Enterprise tier |
| Citation attribution | Traces each citation to the exact page and passage quoted | Reports mentions and where competitors appear without you |
| Content | Engineered from the measured citation pattern of competitor passages | 80-plus templates, mature writing engine |
| Closed loop | Measure, write to the gap, re-measure: one feeds the next | Visibility and content as features in one dashboard |
| Crawler monitoring | GPTBot, ClaudeBot, PerplexityBot, Google-Extended plus robots.txt, every plan | AI crawler analytics via Cloudflare integration |
| Pricing | Published, flat per plan, Action Plan on Starter, free first report | Published, self-serve, card-free start |
The deciding axis is the bottom of that table. Writesonic's content and its visibility data sit side by side in one dashboard; Visiby's content is generated from the measured citation pattern and re-checked against the next run. One does both jobs in a suite; the other makes one job feed the other.
What our benchmark proves
The reason per-engine reporting matters this much is that the engines do not cite the same sources, so any tool reporting one blended figure hides where you actually stand. In our June 2026 benchmark we ran 172 prompts across ChatGPT, Perplexity, and Google AI Overviews, indexing 3,340 citation events across 2,355 URLs from 1,174 domains, with a structural validator passing all 9,615 underlying citation claims and zero rejected (Visiby AI Citation Benchmark).
| Source domain | ChatGPT | Perplexity | Google AI Overviews |
|---|---|---|---|
| 45% (78/172) | 0% (0/172) | 29% (50/172) | |
| YouTube | 0.6% (1/172) | 66% (114/172) | 54% (92/172) |
| Semrush | 7% (12/172) | 24% (42/172) | 16% (27/172) |
Reddit was cited by ChatGPT 45 percent of the time and by Perplexity never; YouTube was the reverse. The source universes barely overlap: ChatGPT cited 409 unique domains, Google AI Overviews 504, and Perplexity 573 across the same prompts. Among the dedicated trackers scored on that same benchmark, none was present in more than about a quarter of the answers buyers read, which is how wide open this field still is.
| Tool | Cited URLs | Citation events | Prompts present (of 172) | Engine spread (CGT / Perp / GAIO) | Entity score /100 |
|---|---|---|---|---|---|
| Profound | 17 | 55 | 47 (27%) | 3 / 14 / 5 | 52 |
| Peec.ai | 9 | 16 | 14 | 4 / 5 / 3 | 38 |
| Otterly.ai | 9 | 15 | 11 | 4 / 5 / 1 | 35 |
| Scrunch AI | 2 | 3 | 3 | 2 / 0 / 0 | 28 |
This is the exact methodology Visiby runs on your brand: per-engine, passage-level scoring that shows where you stand against these tools and the competitors cited instead of you, before you spend a dollar.
One useful finding: raw domain authority does not decide citations. On our 40-point rubric some of the most-cited domains score low, yet they still earn citations because engines cite for topical relevance and content structure. That is why gap-grounded content can win for any brand willing to build the right pages.
Which one should you choose?
There is no universal winner, only the better fit for what you are buying.
- Choose Writesonic if you need an AI writer first: bulk drafting across 80-plus templates, with visibility tracking alongside it in one subscription.
- Choose Writesonic if you already run its content workflow and the AI crawler analytics through its Cloudflare integration fit how you work.
- Choose Visiby if you want to measure where AI engines cite you and close the gaps, in one loop: per-engine, passage-level provenance and a ranked Action Plan included on every plan from 100 dollars.
- Choose Visiby if you want finished, gap-grounded content rather than templates, and a published 172-prompt benchmark behind the method instead of self-reported metrics.
The fairest test is to run both on a prompt you actually sell against, since the most useful comparison is the one you see in your own data.
Key takeaways
- Visiby is a purpose-built tracker that measures your AI citation gaps and writes content to close them, in a closed loop, at a flat per-plan price with a free first report.
- Writesonic is a mature content-generation suite that also tracks AI visibility. If writing at volume is your first need, it fits; if measuring and fixing citation gaps is the job, that is Visiby's design center.
- Our 172-prompt benchmark shows the engines cite largely different sources, so per-engine reporting beats a blended score, and Visiby reports each engine separately on every plan.
- Visiby traces every citation to the exact page and passage, then generates content from that pattern, one June run produced 14 briefs and 35 finished deliverables, and re-measures the next week.
The cleanest way to choose is to run both on a prompt you actually sell against. If you want measurement and gap-closing content without buying a content suite to reach it, start with the free Visiby report, or book a strategy call to talk through your engines and prompts.