This week, xAI introduced the Grok chatbot API, which is integrated into X (formerly known as Twitter). This move marks a significant step in making Grok’s capabilities accessible to developers and businesses, further expanding the options available in the AI market.

According to TechCrunch, the pricing for Grok’s API is set at $5 per million input tokens and $15 per million output tokens, positioning it competitively among other AI services. However, there remains some uncertainty about what customers will actually receive. Currently, the only model available is labeled “grok-beta,” leaving users to wonder if they’re accessing the latest version, Grok-2, or something else entirely. While there are rumors of upcoming models that will analyze text and images, these features are not yet available.

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The Unique Appeal of Grok

Grok made its debut on X late last year and has since become a prominent feature for X Premium users. Accessible at any time via a tab on the app, Grok sets itself apart by offering a less restricted interaction style. Unlike other chatbots that are moderated to avoid sensitive topics, Grok is designed to be more open, resulting in a mixed reception. Some users appreciate Grok’s candid nature, viewing it as a refreshing change in a landscape often dominated by caution. However, this has also led to controversial and troubling outputs that have raised concerns about responsible AI usage.

The recent API launch positions Grok as a potential competitor in the crowded AI chatbot market. The pricing could attract developers seeking an affordable alternative to existing platforms, but the lack of clarity about available features may deter those looking for reliable AI solutions.

As xAI continues to refine Grok, the chatbot could evolve into a versatile tool for various industries, including marketing and customer service. While Musk aims to push the boundaries of AI, the challenge will be to ensure that Grok remains a responsible and effective tool in the rapidly changing AI landscape. With the API release, Musk has not only added to the AI conversation but has also opened up new avenues for developers and businesses to explore.

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To help improve my technique, I consulted Ketan Patel, Senior Design Manager at Dyson, for expert advice on vacuuming correctly.

Vacuum Slowly

When I vacuum, I often use a Dyson V8 Plus or a Bissell CrossWave OmniForce, both powerful but pricey machines. I tend to rush through the task, hoping the vacuum will do the heavy lifting. However, Patel points out that vacuuming too quickly is a common mistake. Dust contains many elements, such as dust mites and allergens, that can settle deep into carpets. By vacuuming slowly, you allow the vacuum time to effectively remove all the dirt, especially if it’s ingrained. A good rule of thumb is to aim for a speed of 20 inches per second.

Vacuum in a Specific Pattern

If you vacuum in a zig-zag pattern—pushing it forward, pulling it back, and repeating—you’re not alone. However, Patel suggests a different approach. He recommends vacuuming in straight lines: “We suggest vacuuming once in each direction. More passes will improve cleaning, but more than two or three in one direction yields minimal benefit.”

Observe your carpet’s texture; it likely has a nap that lies in one direction. Vacuum against this grain for better results. Start from one wall and make a long pass, then return over the same lane to pick up missed dirt and flatten the fibers. Once you reach your starting point, move over to create a new lane and repeat until the room is clean.

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Use the Right Tools

While you don’t need an entire arsenal of vacuum attachments, using the right ones can make a difference. I often stick with the standard vacuum head, but each attachment serves a specific purpose. Here’s a quick guide from Patel:

• Multi-floor tools: Best for general cleaning, especially carpets.
• Torque-drive heads: Designed for deep cleaning, great for ground-in dirt on thick carpets.
• Fluffy heads: Ideal for hard floors.
• Crevice tools: Perfect for tight spaces and gaps.
• Soft dusting tools: Best for delicate furniture.

Maintain Your Vacuum

Finally, maintaining your vacuum is crucial. It might seem tedious, but a clean vacuum is essential for optimal performance. Patel emphasizes the importance of proper maintenance to ensure effective cleaning. Dyson vacuums are designed to capture tiny particles that can clog the filter over time. He recommends washing your filter monthly, emptying the bin, and cleaning the vacuum heads and attachments regularly. If you’re unsure about how to maintain your vacuum, refer to the user manual for specific guidance.

By following these tips, you can ensure your vacuuming routine is more effective, leaving your floors cleaner and healthier!

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In June 2023, I reviewed the Engwe EP2 Pro folding e-bike, which was a great product and offered excellent value. The Engine Pro 2 shares many of the same strengths as the EP2 Pro but comes with several upgraded features.

Engwe Engine Pro 2 e-bike: purpose and best use

The Engwe Engine Pro 2 is a versatile e-bike that’s simple to transport. It’s a great option for getting around the city or commuting, as long as you don’t have to lift its 88-pound weight up or down stairs.

Engwe markets the Engine Pro 2 as suitable for outdoor adventures or even as a mountain bike. However, it’s not built for serious trail riding or challenging mountain paths. Its semi-knobby fat tires can manage dirt roads and moderately rough terrain.

Engwe Engine Pro 2 e-bike: by the numbers

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The Engwe Engine Pro 2 comes with several upgrades, including a 750-watt rear hub motor that peaks at 1,200 watts, improving from the previous model’s 1,000 watts. Maximum torque has increased from 55 to 75 Newton meters, enhancing quick starts and hill climbing.

The gear system is now eight speeds, and it uses a torque sensor for a more natural power boost based on your pedaling effort.

The battery has also been improved, moving from a 48-volt to a 52-volt system, with capacity increasing from 624 to 832 watts. Engwe claims a range of 30 miles on throttle alone and 68 miles with pedal assistance, charging in about 6.5 hours with the new 3-amp charger.

You can reach speeds of up to 20 mph using the thumb throttle, but to go faster (up to 28 mph), you’ll need to use pedal assistance. This is a change from the previous model, which allowed 28 mph on throttle alone, but it meets most states’ e-bike regulations.

Engwe Engine Pro 2

Engwe Engine Pro 2 e-bike: safety and security

The Engine Pro 2 has upgraded to hydraulic disc brakes, but it still uses 160mm rotors, which is less than the 180mm rotors offered by many competitors. Since the bike can reach speeds of 28 mph with over 300 pounds, better braking power would be helpful.

It includes a headlight and a taillight/brake light but lacks turn signals and a bell, which isn’t a major issue. The motor has enough torque to tackle my steep driveway from a standstill.

However, the bike doesn’t come with mirrors, a notable omission for street use, though accessory mirrors are available from Engwe. The only security feature is a key, which is awkwardly placed under the frame. You need it to fold the bike or remove the battery for charging. Investing in a bike lock is advisable for added protection.

Engwe Engine Pro 2 e-bike: options and accessories

Engwe provides a solid range of e-bike accessories, including bags, racks, and cases. They also offer safety and security items like mirrors, locks, and helmets, along with extra batteries and chargers.

If you buy the Engine Pro 2, you don’t have to purchase additional items, but I highly recommend getting mirrors and at least a cable-style lock for added security.

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This data exchange is sometimes necessary, like during software updates for your Mac. However, it can also be exploited by malicious applications that may transmit your personal information to remote servers. By using a firewall, you can prevent this from occurring.

What is a firewall?

A firewall is a tool that monitors the network traffic sent to and from your computer, acting as a gate between your device and the internet. Without a firewall, all applications can access the internet freely. However, with a firewall in place, applications must request your permission before they can send or receive data.

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Firewalls can be either hardware devices or software applications. Most people have encountered hardware firewalls, as modern routers typically come with built-in firewall capabilities. By default, these routers can block incoming connections, and some higher-end models also allow you to block outgoing connections.

Hardware firewalls provide protection for all devices on your network and are less susceptible to being disabled by malware on a single computer, unlike software firewalls. In contrast, a software firewall acts as a gatekeeper between your computer and the internet, making it more effective for managing connections on an individual app basis.

Should I utilize a software firewall?

While software firewalls offer excellent privacy and security, they may not suit everyone. I believe everyone should use a firewall, but some individuals might find them somewhat restrictive since you need to approve each incoming and outgoing connection. However, you can establish rules to prevent the firewall from becoming a hindrance.

How does a firewall function?

By default, your Mac allows all network traffic to access your computer and permits most apps to send data out. When you enable a robust firewall, you must approve nearly every request for both incoming and outgoing traffic. This includes app checks for software updates, downloads, uploads, and any other internet-related connections.

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Firewalls also have a stealth mode that operates according to your predefined settings without requiring prompts. However, this mode can still feel restrictive, limiting your freedom to use the internet as you wish. On the positive side, this increased control offers greater protection against cybersecurity threats and keeps you well-informed about every connection your Mac makes online.

How does a firewall work?

By default, your Mac permits all network traffic to access your computer and allows most apps to send data out freely. However, when you activate a strong firewall, you will need to approve nearly every request for both incoming and outgoing traffic. This includes app updates, downloads, data uploads, and virtually any action that requires an internet connection.

Firewalls also offer a stealth mode that operates according to your predefined settings without prompting you for approval. While this mode is less intrusive, it can still limit your internet usage. On the upside, it enhances your protection against cybersecurity threats and keeps you informed about every connection your Mac makes to the internet.

Which firewall applications should I consider using?

Fortunately, there are several excellent third-party firewall applications for Mac. My favorite is Little Snitch, which offers a robust set of features, including the ability to monitor and block all types of traffic on your Mac, automatically maintained blocklists to keep trackers at bay, and a user-friendly interface that presents useful information clearly. However, it comes with a price tag of $59, which might not suit everyone’s budget.

You can also consider a more affordable option like Radio Silence, which has been recommended by Lifehacker. While it may not have the sleek interface and extensive features of Little Snitch, it effectively fulfills a firewall’s primary function: preventing apps from connecting to the internet without your permission. Priced at $9, it’s an excellent choice for those seeking a budget-friendly firewall.

Additionally, there’s a completely free firewall app for Mac called LuLu. Although I’m usually cautious about recommending free applications for critical security tasks, LuLu has gained the community’s trust. It’s free and open source, and you can explore its GitHub page for more information. As of now, it’s actively developed, which is a plus since many similar apps can be abandoned. The interface may not be as refined as the paid options, but it performs well and can help you determine if a firewall app suits your needs.

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