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When OpenAI released GPT-5.4 at the start of March, the company said the new model was designed primarily for professional work like programming and data analysis. Now OpenAI is launching GPT-5.4 mini and nano, and while it is once again highlighting the usefulness of these new systems for tasks like coding, one of the new models is available to Free and Go users. What's more, that model, GPT-5.4 mini, even offers performance that approaches GPT-5.4 in a handful of areas.
As a Free or Go user, you can access 5.4 mini by selecting "Thinking" from ChatGPT's plus menu. For paid users, the model is the new fallback for when you've hit your rate limit with 5.4 proper. OpenAI says 5.4 mini offers better performance than GPT-5.0 mini in a few different key areas, including reasoning, multimodal understanding and tool use. That means 5.4 mini is better at parsing non-text inputs such as images and audio, and has a more nuanced understanding of how to do things like search the web. It does all of this while running more than twice as fast as its predecessor.
As for GPT-5.4 nano, OpenAI says it's ideal for tasks such as data classification and extraction where speed and cost-efficiency are top of mind. If you're a ChatGPT user, you won't find the new model in the chatbot. Instead, OpenAI is making it only available through its API service. The company envisions developers using more advanced models to delegate tasks to AI agents running GPT-5.4 nano, and that's reflected in the cost of the new model, which OpenAI has priced starting at $0.20 per million input tokens.
This article originally appeared on Engadget at https://www.engadget.com/ai/gpt-54-mi
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 Google is bringing Personal Intelligence to all Google Gemini users starting today, after testing the feature with its paid plans. Personal Intelligence allows Gemini AI to provide personalized responses based on information pulled from connected Google apps like Gmail, Google Photos, YouTube, and more.
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 Smart home accessory company Aqara today announced its new HomeKit and Matter-compatible Camera Hub G350.
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 Apple today released the first Background Security Improvement (BSI) update, replacing the rapid security updates that it used to seed out a few years ago. The first BSI updates address a WebKit vulnerability that could allow maliciously crafted web content to bypass Same Origin Policy. There's a macOS Tahoe 26.3.1, iOS 26.3.1, and iPadOS 26.3.1 BSI update, as well as a ?macOS Tahoe? 26.3.2 BSI update exclusive to the MacBook Neo.
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 X-Plane, which is advertised as being the "world's most advanced flight simulator," is coming to Apple's Vision Pro in the next month or so.
With visionOS 26.4 and NVIDIA CloudXR 6.0, the simulator streams wirelessly at up to 4K/120fps to your headset.
And if you have a physical yoke or throttle, ARKit uses image detection to recognize them and place them inside… pic.twitter.com/FTYzJH9ALP
— Justin Ryan ? (@justinryanio) March 11, 2026
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