Morning Brief

1. Keychron launches the lightweight mouse G3
2. OpenAI introduces the cybersecurity-focused model GPT-5.4-Cyber
3. Microsoft unveils the MAI-Image-2-Efficient model
4. Sony announces adjustments to Bravia TV features

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Keychron launches the lightweight mouse G3

On April 15, Keychron introduced the new tri-mode mouse G3 under its brand. The model features an ultra-lightweight design with dimensions of 120 × 63 × 38.3 mm, and is available in two versions: ABS with semi-transparent PC and ABS with carbon fiber, both weighing just 44g.

Keychron G3 is equipped with a Realtek RTL8762G main controller, a PixArt PAW3950 optical sensor, Huano 120M high-durability micro switches, and a plastic scroll wheel. It supports an 8kHz polling rate in both wired USB-C and wireless 2.4GHz modes, with latency as low as 0.41ms; it also includes a built-in 500mAh battery offering up to 160 hours of battery life.

The standard version of the Keychron G3 is priced at $84.99, while the carbon fiber version is priced at $109.99. Source

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OpenAI introduces the cybersecurity-focused model GPT-5.4-Cyber

On April 14, the OpenAI team announced an expansion of its Trusted Access for Cybersecurity (TAC) program, opening access to GPT-5.4-Cyber to thousands of cybersecurity experts and hundreds of teams. The model is based on GPT-5.4 and has been specifically fine-tuned for cybersecurity defense scenarios, with elevated network permission capabilities.

In terms of access mechanisms, to ensure that all legitimate defenders—including those protecting critical infrastructure—can obtain advanced defensive capabilities, OpenAI implements objective standards such as strong identity verification, avoiding subjective decisions on access rights. Due to the model’s broader permissions, OpenAI is adopting a limited and iterative deployment strategy, making it available only to vetted security vendors and researchers. Source

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Microsoft unveils the MAI-Image-2-Efficient model

On April 15, Microsoft announced the launch of MAI-Image-2-Efficient, a low-cost, highefficiency text-to-image model. This model is a faster, more affordable version of its flagship text-to-image system, which Microsoft says delivers production-ready quality at nearly half the cost.

Microsoft describes it as its “best text-to-image model,” capable of generating “photorealistic and expressive” images, while also reliably rendering text within images. It excels at producing product-style images and UI prototypes, largely due to its strong handling of short text such as titles and labels, and its seamless integration into interactive workflows. Pricing is set at $5 per million text input tokens and $19.50 per million image output tokens. The model is currently available via Microsoft Foundry and the MAI Playground. Source

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Sony announces adjustments to Bravia TV features

Recently, Sony announced plans to scale back certain features of its Bravia smart TVs starting in late May 2026. This adjustment will affect models from 2023 to 2025 and will directly impact users relying on antennas or set-top boxes.

Affected models include the 2025 Bravia 8 II (XR80M2) and Bravia 5 (XR50), the 2024 Bravia 9 (XR90), Bravia 8 (XR80), Bravia 7 (XR70), as well as the 2023 Bravia A95L series. The changes mainly impact users who rely on over-the-air broadcast signals via antennas: the system will no longer guarantee program information display for all channels, the program list will be limited to “recently watched channels,” and channel icons along with program preview thumbnails will be removed, reducing intuitive visual guidance.

For set-top box users, Sony will remove the existing dedicated menu and replace it with a simplified “Control Menu” offering fewer features. Additionally, the TV Guide integrated into the Google TV operating system will no longer display preview images for antenna channels, free ad-supported streaming TV (FAST) channels, and some live services. Source

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News Worth a Quick Look

• On April 15, third-party Android app store Aptoide filed a lawsuit against Google, alleging that thecompany has violated U.S. antitrust laws by monopolizing app distribution and payment processing, effectively excluding competing Android app stores. Aptoide claims it offers lower commissions for developers and reduced costs for users, yet has suffered irreparable harm. According to the complaint, Google prevents competitors from securing exclusive content from top developers and pressures developers to adopt Google Play and other “essential” services. The case has been filed in a federal court in San Francisco, seeking an injunction to halt Google’s alleged anti-competitive practices, along with unspecified treble damages. Source