Imo it is not possible for google to detect properly spun content, it is not worth computing power it requires. They can do this using ngrams for example, but it is uses a lot of queries. And for example article spinner I coded beats this algo, so google cant detect that the content is spun. Manual spinning is also good but it takes more than 30 minutes per article.

I've ranked websites in the past with spun content, and now they are still on #1 position of google. First year (2014) google found me because my spun was really bad, many paragraphs were just copied and my position drop from #2 to around #20 after a panda update. Later I cleaned all my text with better spun (I didn't buy any article!), my ranking went up again, and with more backlinks I reached #1 and it is still there
When there are so many article rewriter or article spinner tools available both online and offline then why should you use our tool? Don’t get us wrong, we are not just bragging when we say that this is one of the best rewriting tool or text spinner tools out there. We are offering you the best article spinner and what makes our article rewriter unique and distinct is its convenience and user-friendly interface. It is a simple yet an efficient article spinner that doesn’t require any sign up, registration fee or installation. All you need is a good internet connection and you are good to go. Also, our paraphrasing tool is absolutely free which makes it an ideal option for students and people who can’t afford paying heavily to writers or rewriting tool or website.  

To open the “Turing” spinner, simply hover over the “Spinner” menu and then click on the “Turing Spinner” sub-menu. The page you will get redirected to looks almost the same as the “Standard” spinner. You have the same 4 inputs below the content field plus an additional one which allows you to choose whether or not you want WordAI to generate a title for the content.
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Once upon a right time there lived a child. He had eyes that are blue blond locks because yellow as gold. The boy that is young small and fragile, but their mind was swift like the wind. He could calculate the results of any situation in the blink of an eye fixed. But that had not been their talent that is biggest. No. His talent that is biggest was perception. The child that is young comprehend and perceive anything faster than anyone he previously ever met. Then, he fell so in love with a princess that is breathtaking. She had magnetic green eyes and light locks that is brown. She was loved by him very much and she loved him back also more. There is only 1 problem – the boy that is young the son of a blacksmith. The princess’s father would not allow her to marry a son that is simple of blacksmith. But their love was too strong. The young boy raised an army of undead and started a rebellion to overthrow the wicked master who did not have confidence in true love in one fell swoop. The young kid ended up being assassinated and the war was over after months of fighting against the armies of his beloved’s father. No songs were sang.
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spinner Chief. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
Spinning Speed – How quick can these spinners spin the article above. WordAi took 3 minutes and 48 seconds and SpinerChief III Ultimate using Super Spin in the balanced setting (meaning try to be unique as possible while still being readable) took less than 3 seconds to generate. I’ve had WordAi take 5+ minutes before, they need to speed things up. Clearly SpinnerChief won the speed test.
WordAI also comes with several settings that can help you do the things you need to do. These help make your content more readable and unique so that there will be no issues with Google. One of the things you will surely appreciate about this tool is that this take and replaces words with exactly the same meaning then puts these in the sentences in a way that makes sense to the readers.

Does your website need quality content in big numbers? The truth is; producing decent articles can take any author hours and limit the amount of fresh written content on your website especially if you are the only one writing for your website.  On the other hand, hiring a writer can get expensive.  Have you ever considered using an article spinner?  Spinning content is a great way to keep your website relevant and fresh with new content.  Of course, not all article spinner software is good.  Therefore it’s important to do your homework first before choosing one.   We suggest Spin Rewriter 9.0.  With this tool, you can rewrite your articles using their intelligent One-Click Rewrite system.  In addition, you also have a Bulk Rewrite option that lets your rewrite multiple articles with one click.  You can take one great article and break it up into several great pieces of content.  The options are endless.
Now, I will use the “Very Readable Content” settings suggested by WordAI to see what it will come up with in comparison to the original text. It took about 30 seconds for WordAI to spin this small piece of content so you really know that there’s a lot of processing happening on the back-end. The content that WordAI generated is calculated to have an average of 94% uniqueness (you can learn more about how WordAI calculates this percentage here) and here is an example spin generated from the spintax:
This is definitely one of the better options among the spinners that we have available right now, with great customer support – which I had a pleasure of dealing with, they were helpful and fast to respond. Actually the whole team behind this product is very professional, I know a couple of them and dealt with them in the past, they an alright bunch.
4. Tier 2 content (content that is keyword rich and relevant to your niche. Doesn’t have to be all that readable, it just has to be indexable by a search engine.)– Here put same options as with the Tier 1 content situation with the only difference that you set the 1st input to “Regular.” It is important that lower tiers have a lower quality of content compared to upper tiers.
Ideas are the sure products in the intricate brain functions of the system. Although there are amicable standards in the part of article ownership, what clients will only have to remember is to maintain a direct address for article data-keeping. The demands in the internet for competitive articles and products for website management will answer it all.
The content above is 98% unique according to Spin Rewriter and I really like it. It actually seems better than the WordAI spin – only the “Standard” one however, it is no match for the “Turing”. One thing that the spinner failed to recognize is the “green eyes” phrase where it replaced it with “environment-friendly”. Yea, I laughed too. Anyway, here is the spintax for those interested in more testing:
For this purpose, humans have created numerous rewriting tools to save time and use all words available in the English dictionary. Rewriting tools use millions of synonyms made available to them through artificial intelligence and instructions given by the human mind. If you hire the services of a content writer to rewrite/create content for you, they will charge you a lot. Big organizations can afford this but small startups and students can never afford the services of professional writers.    
"It is my pleasure to give testimonial about this spinner tool. I think this is great and highly recommended tool to build a many unique articles for our internet marketing world. At the first time, I already see about another great spinner tools, but it is not free. And fortunately for me, I found spinnerchief. The free tools which have almost the same quality with another cost spinner tools. I already use spinnerchief to build many articles to attract traffics for my below minisite"

Exactly Mark! In my experience you can certainly write around 1000 words per hour, even if you are practically new to blogging. I personally think that spinning articles is just a gimmick that doesn’t really get results but wastes tons of time. The spinning software certainly makes a lot of money for the creators though! They are the ones who are laughing all the way to the bank!
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Article Spinner or Article Rewriter, as the name itself gives you an idea, is a rewriting tool or a paraphrasing tool that allows people to rewrite their content while saving significant amount of time. Many such article rewriter and article spinner tools are available over internet. Some article spinner tools are completely free, requiring no installation or fee while some article rewriter tools can ask you to sign up or pay.
Once upon a right time there lived a child. He had eyes that are blue blond locks because yellow as gold. The boy that is young small and fragile, but their mind was swift like the wind. He could calculate the results of any situation in the blink of an eye fixed. But that had not been their talent that is biggest. No. His talent that is biggest was perception. The child that is young comprehend and perceive anything faster than anyone he previously ever met. Then, he fell so in love with a princess that is breathtaking. She had magnetic green eyes and light locks that is brown. She was loved by him very much and she loved him back also more. There is only 1 problem – the boy that is young the son of a blacksmith. The princess’s father would not allow her to marry a son that is simple of blacksmith. But their love was too strong. The young boy raised an army of undead and started a rebellion to overthrow the wicked master who did not have confidence in true love in one fell swoop. The young kid ended up being assassinated and the war was over after months of fighting against the armies of his beloved’s father. No songs were sang. 
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