WriteSonic AI Review: How Natural and Accurate Is Its Output?

It’s no secret that the market is flooded with AI writing tools, each of which promises more “human” content than the last.

After seeing so many bold claims, you can’t help but feel a little skeptical. How good can they really be?

WriteSonic AI is one of the well-recognized names in the content industry because of its well-rounded approach.

Besides producing content, it also optimizes it for SEO and basically makes it ready to produce results.

That promise made me curious enough to put it to the test. I wanted to see how natural and accurate its output really is.

Could it actually create human-like content that holds up under the scrutiny of Détecteurs d'IA?

And in this review, I’ll walk you through my findings of WriteSonic AI.

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Principaux enseignements

• WriteSonic is an all-in-one AI content creation and optimization platform that boosts brand visibility on AI-driven and traditional search engines.

• It offers AI Article Writer 6, SEO AI Agent, AI Content Detector, and ChatSonic, which together streamline your keyword research and generate SEO-rich, real-time web-connected content.

• Its pricing starts at $39/month for freelancers and scales up to $399/month for large teams. A custom enterprise option is also available.

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What Is WriteSonic AI?

Writesonic is an AI-powered writing assistant and content optimization platform. It uses AI for SEO and GEO, described by the company as Generative Engine Optimization. 

The tool claims to “track & boost your brand’s visibility in both AI search (ChatGPT, Claude, Perplexity, etc.) and traditional search (Google, Bing)”.

Writesonic was founded by Samanyou Garg, who previously won the 2019 Global Undergraduate Awards (also referred to as the “junior Nobel Prize”)

After its launch, WriteSonic was quick to join Y Combinator’s accelerator program. It raised about $2.6 million in seed funding through HOF Capital, Soma Capital, and Amino Capital as investors.

As of 2025, Writesonic says it supports over 20,000 marketing teams. 

How Much Does WriteSonic AI Cost?

Writesonic’s pricing follows a tiered pricing model to meet your content operation needs. 

There are four fixed plans, Lite, Standard, Professional, and Advanced, plus an Enterprise option for large organizations that need custom integrations.

• The Lite plan, at $39 per month, is aimed at freelancers and independent creators.

• The Standard plan, at $79 per month, is for small marketing teams.

• The Professional plan, priced at $199 monthly, targets growing brands that need full SEO integration and AI search visibility tracking

• Then comes the Advanced plan, at $399 per month, for larger teams. 

And at the top of the stack, Enterprise pricing is fully custom.

WriteSonic AI Key Features

Writesonic’s ecosystem of tools is built around the concept of creating high-quality content that has real cash value.

So, all of its features solve at least one major bottleneck in content production and visibility.

Some key features include:

• AI Article Writer 6, the core of Writesonic’s long-form generation engine, which generates SEO-rich articles using real-time data

• The SEO AI Agent, a data-driven workflow of keyword research, SERP analysis, generating content outlines, content planning, etc

• ChatSonic, which is Writesonic’s conversational AI that allows real-time interaction on the platform. The best feature of ChatSonic is that it connects to live web data, so it is possible to pull current info on demand

• The Dynamic Content Writer for personalized content followed up on your required intent and tone. It works best for marketing material, e.g., product descriptions, email campaigns, etc

• Encryption of all user data with AES-256 standards and explicit control over retention policies.

• SOC 2, GDPR, and HIPAA compliance

Who Should Use WriteSonic AI?

WriteSonic is created for people who write and market content. 

It is a literal marketing department in a browser tab for small businesses with limited content needs.

They can save the overhead of hiring multiple specialists to produce social media captions, product descriptions, landing pages, ad copy, etc.

If you are in a marketing team that runs multiple campaigns at once, WriteSonic is for you, too.

Its collaboration tools let multiple writers, editors, and SEO analysts work from the same project space.

Writesonic is almost like a creative co-founder to solopreneurs who themselves act as sales, marketing, operations, and finance departments. 

How Exactly Does WriteSonic Work?

It’s pretty simple to use WriteSonic. Like most AI tools, you have to sign up on the platform.

However, it requires you to enter your domain before you can proceed to content creation and SEO tools.

Once the account is set up, here’s what your dashboard will look like: 

Now, let’s test WriteSonic’s flagship tool, the AI Writer 6. 

Click on ‘Content Creation’ from the left sidebar to get directed towards AI Writer 6.

You will see two writing modes:

1. An Instant article mode, where you only specify the title, keyword, and the type of article you need written, and AI will get to work.

2. A 10-steps article mode, which, as the name suggests, takes you to a ten-step process with detailed control over the tone, style, article length, images, etc.

For every AI article generator, it’s very natural to ponder how natural the output reads.

I also tested the tool through Undetectable AI Content Detector to see if it could bypass it.

I used WriteSonic’s Instant Article feature to generate a blog post on ‘Digital Marketing.’ The tool allegedly ran through multiple steps while processing my request, as shown here:

Upon first look, the output did surprise me! It produced a 2748 words-long article with images and references.

The text contained a lot of statistics and a few expert quotes, too! The text was also structured well under heading tags, bullets, and numbered lists.

Fortunately, Undetectable AI allows us to enter up to 10,000 when checking for AI.

I took advantage of that and pasted the entire WriteSonic generated article to see if it could keep itself out of the typical AI phrases and sentence structures.

Undetectable AI, however, showed a 92% probability of the text being AI-generated. 

So what does that mean for WriteSonic?

It simply means that even though the tool is pretty smart at putting together a well-researched article with limited input information, its language still needs human oversight.

You can quickly run it through Humanisateur d'IA indétectable to ease the flow of its text and add some human element in there.

Pros and Cons of WriteSonic AI

Like any tool, some features of WriteSonic AI writing tool are more than impressive, but there are some that didn’t hit the spot for me. 

Here are some of its aspects that I really liked: 

• You can switch between GPT-3.5, GPT-4, GPT-4o, and Claude to get control over your tone. 

• It automatically weaves target terms into headers, meta descriptions, and anchor text with built-in SEO intelligence. 

• The brand voice settings are excellent for teams working across multiple clients

• You can manage every content format without leaving the dashboard. It’s rare to find this breadth in one platform.

• There are plenty of tutorials, FAQs, and onboarding help for new users 

As for its limitations, some worth highlighting are:

• The long-form writing produced by WriteSonic sometimes veers into generic phrasing.

•  Entry-level plans limit the number of content generation requests.

• The dashboard packs a lot in. Until you figure it out, it will look cluttered to you as a new user.

• GPT-4 or Claude models are more accurate than GPT-3 but they consume more credits, so balancing quality against cost becomes part of the workflow.

Can WriteSonic AI Be Used with Undetectable AI

Definitely, and to be honest, it’s a very smart combination!

WriteSonic does write you decent content, but as helpful and SEO-ready as it is, its outputs are still too robotic for human readers who genuinely enjoy reading content aimed at them.

You can, therefore, add IA indétectable in the workflow to make your content unmistakably human.

Running your Writesonic-generated text through Undetectable AI’s Paraphraseur d'IA essentially adds a layer of refinement.

The Paraphraser mimics natural human phrasing to restructure your sentences and adjust syntax patterns wherever required.

Le Rédacteur furtif de l'IA is made to rewrite content so thoroughly that it can pass nearly any detection tool.

After passing through Stealth Writer, your draft becomes genuinely “human-sounding” and resilient against AI content detectors.

Vérifiez votre contenu à l'aide de notre détecteur d'IA et de notre humaniseur ci-dessous !

Réflexions finales

All things considered, Writesonic is a genuinely capable and well-rounded AI writing platform. But if you’re aiming for consistently high-quality, you’ll likely need to opt for one of its higher-tier plans.

Pairing Writesonic with Undetectable AI, however, can take your workflow to a whole different level.

Undetectable AI provides you with a wide range of entirely free tools that require no credit card to get you started.

These aren’t watered-down freebies either.

The AI Detector, for example, is powered by TruthScan and has been shown to deliver 100% accuracy in independent tests.

Essai IA indétectable aujourd'hui !