Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Sometimes—but there is no reliable, universal productivity gain. Studies have found faster completion on a bounded coding exercise, reported time savings in a government workplace trial, and slower completion in a trial with experienced developers working in familiar, mature projects. The result depends on the developer, task, tool, and what counts as productivity.
What the studies found
| Study | Setting and method | Reported finding | What the finding can tell you |
|---|---|---|---|
| METR, July 2025 | A randomized controlled trial with 16 experienced developers who had moderate AI experience. They completed 246 tasks in mature open-source projects where they had an average of five years of prior experience. The tested tools were available at the February–June 2025 frontier. | Participants took 19% longer on average with AI tools in this setting. Their expectations and impressions were more favorable than the measured completion-time result. | This is evidence against assuming that AI speeds up every kind of coding. It applies to this sample, these tasks, and early-2025 tools—not automatically to novices, greenfield work, other tools, or later tool generations. |
| UK public-sector trial, November 2024–February 2025 | The Department for Science, Innovation and Technology and Government Digital Service made 2,500 licences available across central government organisations. The report drew on surveys, telemetry, satisfaction and exit-survey data. | Participants reported saving an average of 56 minutes per working day, including 24 minutes on code creation and analysis. The 2,500 figure is licences offered, not a count of daily users. | These are useful workplace observations, but the time-saved figure is self-reported. It is not a randomized estimate of how much faster users completed work. |
| GitHub, July 2022 | GitHub’s vendor-published controlled study compared Copilot use on a defined programming task. | Average completion time was 1 hour 11 minutes with Copilot and 2 hours 41 minutes without it. | This supports the possibility of faster completion on a bounded task under study conditions. Its age, vendor origin, and narrow task do not establish the same result for complex production work or current tools. |
| Microsoft Research, June 2025 | Three randomized field experiments studied coding assistants at Microsoft, Accenture, and an anonymous Fortune 100 company. | The paper reports workplace experiments across those settings; a single general percentage is not established here. | Field experiments can show how tools fare in company settings, but results should be read by experiment and outcome rather than collapsed into one headline figure. |
Why the results differ
“Productivity” can mean finishing a task sooner, spending less time typing, feeling faster, accepting more suggestions, or delivering code that works with less follow-up. Those are different outcomes. A tool might reduce time spent creating code yet add time for prompting, waiting, checking suggestions, revising them, or integrating the result. A perceived time saving is also not the same as a measured reduction in end-to-end completion time.
The studies above differ in their participants, tasks, tools, and methods. A short, well-defined exercise is not interchangeable with maintaining a mature codebase; a developer’s estimate of time saved is not equivalent to a randomized comparison. Their numbers should not be averaged into a single productivity percentage.
What to measure on your own team
For the practical question—whether an assistant helps your developers—evaluate the work your team actually does. A useful comparison should include the full path from starting a task to having an acceptable result, not just the minutes spent generating code.
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
- Choose representative work. Include the task types where you expect the assistant to be used, such as maintenance, debugging, or new feature work. Keep the task definition and acceptance criteria clear enough to compare outcomes.
- Record the starting conditions. Note the developer’s experience, familiarity with the codebase, assistant and model generation, configuration, and evaluation dates. These details help explain why results may differ across tasks or over time.
- Measure end-to-end time. Count time spent prompting, waiting, reviewing, revising, testing, and fixing follow-up issues—not only time spent writing code. Define in advance what qualifies as an accepted completion.
- Track quality alongside speed. Record whether the result meets the acceptance criteria and what review or correction it needs. A faster draft is not a productivity gain if it shifts substantial work downstream.
- Separate measured results from impressions. Collect developer feedback, but label it as perceived benefit. Compare it with task completion and quality measures rather than treating the two as interchangeable.
- Report results by task and developer context. Show where the assistant helped, had little effect, or added overhead. A team-wide average can conceal meaningful differences between kinds of work.
How to interpret newer tools and evidence
METR’s February 24, 2026 update said wider adoption created selection effects in its second developer-productivity study: people choosing to use AI may differ from those who do not. It also said participants found it difficult to account for time spent on tasks while agentic systems ran in the background, and that METR was changing the experiment design. The update did not report a completed replacement estimate for the 2025 trial.
That update is a reason to be cautious about treating any one older result as a forecast for every assistant available now. It does not erase the 2025 finding, nor does it establish a new universal speedup or slowdown. For a decision about current tools, the most relevant evidence is a careful evaluation of the tool, tasks, developers, and end-to-end outcomes in your own setting.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
