Rephrase AI vs QuillBot: 8 Texts Tested Side by Side
We ran Rephrase AI and QuillBot on the same 8 texts. It was close on most, and the biggest gaps came on a casual email and a technical update.
We ran Rephrase AI and QuillBot's paraphraser on the same eight texts between October 17 and October 19, 2026. QuillBot accepted up to 100 words per input in our run, so our 224-word support report is left out of the scores.
On the seven texts both tools finished, Rephrase AI averaged 9.71 out of 10 and QuillBot 8.86. Rephrase AI scored higher on three, they tied on three, and QuillBot scored higher on one, a paragraph about remote work. Most of the gap came from two texts, a casual email and a technical update.
Rephrase AI vs QuillBot at a glance
| Decision point | Rephrase AI | QuillBot |
|---|---|---|
| Average score on the 7 shared texts | 9.71 out of 10 | 8.86 out of 10 |
| Texts where it scored higher | 3 | 1 |
| Ties | 3 | 3 |
How we tested
We ran the same eight texts through both tools. The texts are a casual email, a 224-word support report, a research sentence with a careful hedge, a refund policy, a paragraph of stock corporate filler, a technical update full of names and terms, a paragraph about remote work and a blunt two-line note.
Rephrase AI ran in Standard, with no profile picked, all four sliders at 50% and SuperRephrase Mode off. QuillBot ran in Standard, its default, in English with the synonyms slider left where it was. Rephrase AI ran on October 17, 2026. QuillBot ran five texts on October 17 and the last three on October 19. We scored one output per text from each tool.
Each output got 0 to 2 points on five things, meaning, facts kept, grammar, tone and flow, for a score out of 10. One person scored every output. The October 17 outputs were scored from a sheet that hid the tool names, but that person had also collected the outputs, so the blinding was partial. Outputs from the later runs were scored with the tool names known. Treat these scores as our test with the method shown, not a final verdict.
Results by text
| Text | What it is | Rephrase AI | QuillBot | Higher score |
|---|---|---|---|---|
| T1 | Casual email | 10 | 7 | Rephrase AI |
| T2 | 224-word support report | 10 | Not scored | No comparison |
| T3 | Research sentence with a hedge | 10 | 10 | Tie |
| T4 | Refund policy | 10 | 9 | Rephrase AI |
| T5 | Stock corporate filler | 9 | 9 | Tie |
| T6 | Technical update | 10 | 7 | Rephrase AI |
| T7 | Remote work paragraph | 9 | 10 | QuillBot |
| T8 | Blunt two-line note | 10 | 10 | Tie |
Where Rephrase AI pulled ahead
The technical update
The original
Priya Raman asked whether the Kubernetes migration will affect our SOC 2 Type II audit. Per Jonah at Datadog, p95 latency on the checkout-api service rose from 180 ms to 240 ms after we moved to the us-east-2 cluster, so we're holding the cutover until the PgBouncer config is fixed.
Rephrase AI
Priya Raman asked if the Kubernetes migration will impact our SOC 2 Type II audit. According to Jonah at Datadog, p95 latency for the checkout-api service increased from 180 ms to 240 ms after we moved to the us-east-2 cluster, so we're delaying the cutover until the PgBouncer config is fixed.
QuillBot
Priya Raman inquired as to how our SOC 2 Type II audit would be impacted by the Kubernetes deployment. We're delaying the cutover until the PgBouncer configuration is corrected since, according to Jonah at Datadog, p95 latency on the checkout-api service increased from 180 ms to 240 ms when we moved to the us-east-2 cluster.
Priya asked whether the migration will affect the audit. QuillBot wrote that she "inquired as to how" the audit would be impacted, which assumes it will be. It also changed "migration" to "deployment". QuillBot kept all 11 names and terms, so the damage is in the question, not the details. It scored 7. Rephrase AI kept the question open and scored 10.
Rephrase AI in Standard on the technical update, October 17, 2026.
QuillBot in Standard on the same update, October 19, 2026.
The casual email
The original opens with "hey Dana" and ends with "sorry about this!!". QuillBot made it formal, with "Hello Dana" and "I apologize for this!". It also changed "send you" to "email you" and "not stuck" to "so you won't be trapped". It kept every fact and scored 7. Rephrase AI fixed the grammar, kept the friendly tone and scored 10.
The refund policy
QuillBot kept all seven conditions. It wrote that final sale items "cannot be reimbursed" and that "shipping costs are not reimbursed", which is an odd fit for a refund. It scored 9 against Rephrase AI's 10.
Where QuillBot won or tied
QuillBot won the remote work paragraph with 10 against Rephrase AI's 9.
Many teams now communicate differently as a result of remote work. Without office distractions, workers can concentrate, but they might find it difficult to form bonds with their coworkers. Businesses should establish transparent communication practices, record significant decisions, and provide frequent chances for interaction. Distributed teams can maintain productivity without compromising teamwork by taking a deliberate approach.
They tied at 10 on the research sentence. QuillBot kept the hedge with "raises the possibility that the observed effect is exaggerated". They tied at 10 on the blunt note, where QuillBot wrote "The report has been delayed three times now." They tied at 9 on the corporate filler paragraph, where both tools changed the words and kept the filler feel.
QuillBot and Scribbr gave the same outputs
On six texts, from the research sentence through the blunt note, QuillBot's Standard output matched Scribbr's word for word. Scribbr's page says it is powered by QuillBot. We can only report what we saw, so treat our Rephrase AI vs Scribbr results on those texts as the same engine, not a second opinion.
Where Rephrase AI lost points
Rephrase AI dropped a point on two texts. On the remote work paragraph it added a hedge. "Employees can focus" became "Employees may be able to concentrate", which is less certain than the original. On the corporate filler paragraph it changed the words but kept the filler feel, ending with "they can realize their full potential and achieve meaningful results." It scored 9 on both.
Which should you choose?
Choose Rephrase AI if a casual tone or an open question has to survive the rewrite. It scored higher on three of seven shared texts. Rephrase AI also has four profiles called Academic, Professional, Casual and Creative. Sliders set formality, complexity, brevity and creativity, and there is a SuperRephrase Mode. You can compare each rephrase with your original, use focused tools for a draft, sentence, paragraph or word, and summarize text. We tested Standard only, so none of these affected the scores.
Choose QuillBot if you want a careful, more formal rewrite. It won or tied four of the seven shared texts, and it won the remote work paragraph.
All eight test texts in full
Open any test to read the original text and each tool's full rewrite, word for word.
Original
hey Dana, quick heads up, the Lisbon deck isnt gonna be ready by thurs. Marco's still waiting on the Q3 numbers from finance and I dont wanna send something half baked. can we push the review to Monday the 14th at 10? if thats a pain I can send you the first 12 slides tomorrow so you're not stuck. sorry about this!!
Rephrase AI
Hi Dana, a quick heads-up. The Lisbon deck won’t be ready by Thursday. Marco is still waiting on the Q3 numbers from Finance, and I don’t want to send something half-baked. Can we move the review to Monday the 14th at 10? If that’s inconvenient, I can send you the first 12 slides tomorrow so you’re not left waiting. Sorry about this!!
QuillBot
Hello Dana, just letting you know that the Lisbon deck won't be done by Thursday. I don't want to send anything half-baked, and Marco is still awaiting the Q3 figures from finance. Could we reschedule the review for Monday, the 14th, at ten? I can email you the first twelve slides tomorrow if that's a hassle so you won't be trapped. I apologize for this!
Original
Our customer support team handled 4,812 tickets in September, which is about 18 percent more than in August. Most of the increase came from two sources. The first was the new billing page, which launched on September 3 and confused many customers who were used to seeing invoices under Account Settings. The second was a short outage on September 19 that kept people from logging in for roughly 40 minutes. Average first response time rose from 2 hours 10 minutes to 3 hours 25 minutes, but customer satisfaction stayed fairly steady at 91 percent, down only one point. The team believes satisfaction held up because agents were given a clear script for billing questions within two days of the launch. Looking ahead, we want to bring first response time back under 2 hours 30 minutes by the end of November. To get there, we plan to add a short guide to the billing page, move invoices back into Account Settings as a second entry point, and hire two part-time agents for the evening shift, when the queue is longest. We will not add a chatbot this quarter, because the last trial in May sent too many customers to the wrong help articles. We will review the numbers again in the first week of December and decide then whether the part-time roles should become full-time.
Rephrase AI
In September, our customer support team handled 4,812 tickets, about 18 percent more than in August. Most of that increase came from two sources. One was the new billing page, launched on September 3, which confused many customers who were used to finding invoices under Account Settings. The other was a brief outage on September 19 that prevented people from logging in for roughly 40 minutes. Average first response time increased from 2 hours 10 minutes to 3 hours 25 minutes, but customer satisfaction remained fairly steady at 91 percent, down just one point. The team believes satisfaction held up because agents received a clear script for billing questions within two days of the launch. Looking ahead, we want to bring first response time back below 2 hours 30 minutes by the end of November. To do that, we plan to add a short guide to the billing page, restore invoices to Account Settings as a second entry point, and hire two part-time agents for the evening shift, when the queue is longest. We will not add a chatbot this quarter, because the last trial in May directed too many customers to the wrong help articles. We will review the numbers again in the first week of December and then decide whether the part-time roles should become full-time.
QuillBot
QuillBot's free plan allows 100 words per input. On this 224-word report it showed only the first sentence, so this text is left out of the scores.
In September, our customer service team processed 4,812 tickets, an increase of around 18% from August.
Original
Although prior studies have reported a modest association between sleep duration and exam performance, these findings were largely drawn from self-reported data, which suggests that the observed effect may be overstated and warrants replication using objective measures such as actigraphy.
Rephrase AI
Although earlier studies have found a modest link between sleep duration and exam performance, those results were based largely on self-reported data, suggesting that the effect may be overstated and should be replicated using objective measures such as actigraphy.
QuillBot
Even though previous research has found a slight correlation between exam performance and sleep duration, these conclusions were mostly based on self-reported data, which raises the possibility that the observed effect is exaggerated and calls for replication using objective metrics like actigraphy.
Original
Refunds are available within 30 days of purchase only if the item is unused and returned in its original packaging. Items bought on final sale cannot be refunded, but they may be exchanged once for a different size. Shipping fees are not refundable unless the item arrived damaged.
Rephrase AI
You can receive a refund within 30 days of purchase only when the item is unused and returned in its original packaging. Final sale items are not eligible for refunds, but they can be exchanged once for a different size. Shipping fees are nonrefundable unless the item arrived damaged.
QuillBot
Only unused items returned in their original packaging are eligible for refunds within 30 days of purchase. Final sale items can be exchanged once for a different size, but they cannot be reimbursed. Unless the item arrived damaged, shipping costs are not reimbursed.
Original
In today's fast-paced digital landscape, effective communication is more important than ever. By leveraging cutting-edge tools and fostering a culture of collaboration, teams can unlock their full potential and drive meaningful results. Ultimately, embracing these strategies empowers organizations to navigate challenges and thrive in an ever-evolving world.
Rephrase AI
In today’s fast-moving digital environment, effective communication matters more than ever. When teams use advanced tools and build a collaborative culture, they can realize their full potential and achieve meaningful results. Ultimately, adopting these strategies helps organizations meet challenges and succeed in a constantly changing world.
QuillBot
Effective communication is more crucial than ever in the fast-paced digital world of today. Teams can realize their full potential and produce significant outcomes by utilizing state-of-the-art tools and cultivating a collaborative culture. In the end, adopting these tactics enables businesses to overcome obstacles and prosper in a world that is constantly changing.
Original
Priya Raman asked whether the Kubernetes migration will affect our SOC 2 Type II audit. Per Jonah at Datadog, p95 latency on the checkout-api service rose from 180 ms to 240 ms after we moved to the us-east-2 cluster, so we're holding the cutover until the PgBouncer config is fixed.
Rephrase AI
Priya Raman asked if the Kubernetes migration will impact our SOC 2 Type II audit. According to Jonah at Datadog, p95 latency for the checkout-api service increased from 180 ms to 240 ms after we moved to the us-east-2 cluster, so we're delaying the cutover until the PgBouncer config is fixed.
QuillBot
Priya Raman inquired as to how our SOC 2 Type II audit would be impacted by the Kubernetes deployment. We're delaying the cutover until the PgBouncer configuration is corrected since, according to Jonah at Datadog, p95 latency on the checkout-api service increased from 180 ms to 240 ms when we moved to the us-east-2 cluster.
Original
Remote work has changed how many teams communicate. Employees can focus without office interruptions, but they may also struggle to build relationships with coworkers. Companies should create clear communication habits, document important decisions, and give people regular opportunities to connect. A thoughtful approach helps distributed teams stay productive without sacrificing collaboration.
Rephrase AI
Remote work has reshaped how many teams communicate. Employees may be able to concentrate without office distractions, but they can also find it harder to build relationships with coworkers. Companies should establish clear communication practices, record important decisions, and provide regular opportunities for people to connect. A thoughtful approach helps distributed teams remain productive without giving up collaboration.
QuillBot
Many teams now communicate differently as a result of remote work. Without office distractions, workers can concentrate, but they might find it difficult to form bonds with their coworkers. Businesses should establish transparent communication practices, record significant decisions, and provide frequent chances for interaction. Distributed teams can maintain productivity without compromising teamwork by taking a deliberate approach.
Original
This is the third time the report has been late. I need it by 5 today or I'm escalating to Karen.
Rephrase AI
This is the third time the report has arrived late. I need it by 5 today, or I'll escalate this to Karen.
QuillBot
The report has been delayed three times now. I'll escalate it to Karen if I don't get it by five today.
FAQ
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