(Amazon AWS)

Amazon rolls out updated Trainium chip, new AI models at re:Invent conference

A flurry of product announcements from the developer conference in Las Vegas present a road map for Amazon’s AI computing dominance.

Jon Keegan

12/2/25 3:04PM

Today in Las Vegas, at its annual re:Invent developer conference, Amazon AWS made a bunch of product announcements that reveal its plan to continue capitalizing on the AI boom.

AWS currently enjoys a substantial lead in the cloud computing market, serving up AI infrastructure in the cloud to customers large and small using the models of their choice.

Trainium3

Probably the most consequential announcement was about the company’s new Trainium3 custom AI chip. Three years out from ChatGPT’s disruptive debut, AI companies are diversifying their computing resources away from GPU juggernaut Nvidia and starting to sample the price and performance benefits of alternative custom chips, such as Trainium.

Today, AWS announced the Trainium3 UltraServer, powered by the new Trainium3 chips. The company said the Trainium3 chips are 4x as fast and can train models for half the cost of the previous generation. AWS CEO Matt Garman acknowledged the misleading name of the chip, which excels not only at training AI models but also running AI models, known as inference.

“People often give us a little bit of a hard time about product naming in AWS. No, no, it’s true. Well, it turns out Trainium is no exception. We named it Trainium because it’s designed to be an awesome chip for Al training, and it is, but as it turns out, Trainium2 is actually the best system in the world currently for inference,” Garman said.

The company said work on Trainium4 is well underway, and the chips would be compatible with Nvidia systems.

Nova 2 models

Amazon announced updates to its own frontier AI model family called Nova:

Nova Lite (fast and cheap for everyday tasks),
Nova Pro (for complex reasoning workloads),
Nova Sonic (a new speech-to-speech model), and
Nova Omni (an “all-in-one model for multimodal reasoning and image generation”).

The new models may help the company offer cheaper, more efficient AI computing for its customers versus running competing frontier models on popular Nvidia GPUs.

Nova Forge

Complementing the new Nova 2 models is a product called “Nova Forge,” which makes it easier to train customized models using the Nova models as a base. Customers can bring custom data into the training process to easily create specialized expert models using the tool.

AI Factories

Amazon is also rolling out a way for customers to run AWS services inside their own data centers, keeping their data under their control. Amazon AI Factories works with both Amazon Trainium chips as well as Nvidia GPUs. Amazon said an AI factory is like deploying your own private AWS region.

Agents, agents, agents

AI agents were mentioned quite a bit during the keynote, and the company had lots of new offerings to help customers deploy autonomous AI helpers.

Nova Act: A new AWS service that lets customers spin up “fleets of reliable AI agents for automating production UI workflows.”

DevOps Agent: A new “frontier agent” that autonomously helps solve software failures on production systems when human engineers aren’t online. Amazon describes the new agent as “our always-on, autonomous on-call engineer.”

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Prediction markets have, predictably, been given a boost by the summer of sports

Major platforms like Kalshi and Polymarket have seen huge upticks in users of late, thanks in no small part to what’s felt like a recent sporting smorgasbord, with major competitions across hockey, basketball, and soccer soaking up fans’ time (and spending, clearly) at the outset of summer.

While gaming industry groups may not like it, there’s been a huge change in the methods people are using to put money on the big games, with everyone from fortunate NYC bar owners, to a far less fortunate Spanish supporter, turning to prediction markets to try and turn their sports know-how into cold, hard cash.

According to a new report from Adam Blacker for apptopia, that shift might have been even more seismic than imagined in the wake of the NBA and NHL finals and around the 2026 World Cup kicking off.

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According to a new report from Adam Blacker for apptopia, that shift might have been even more seismic than imagined in the wake of the NBA and NHL finals and around the 2026 World Cup kicking off.

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Anthropic pulls Fable and Mythos access worldwide after Trump administration bars their use by foreign nationals

Only days after releasing two versions of its next-gen AI model, Anthropic has disabled them for users worldwide.

Anthropic says it received a Friday night order from the Trump administration to suspend access to the models for any foreign national (anywhere in the world) — a group that included some Anthropic employees. In response, the company turned off access to everyone.

Last week, the company released to the public its much-anticipated Claude Fable 5 model (and its restricted version Claude Mythos 5, which is still being tested with trusted partners). Anthropic said in a blog post announcing the action that officials cited national security concerns with the new models, while offering few specific details.

The post said that the government gave the company “verbal evidence of a potential narrow, non-universal jailbreak” of the public Fable 5 model. A jailbreak is a means by which users can evade restrictions built into the code to unlock prohibited functionality. Anthropic downplayed the significance of the attack, and said other major models, such as OpenAI’s GPT-5.5, could also be affected by the technique described.

Fears of these first Mythos-class models being misused are running high, after Anthropic warned the cybersecurity world in May that the advanced cyber capabilities of Mythos have rapidly discovered thousands of vulnerabilities in ubiquitous software, leading to the decision to restrict the full version of the model to a close group of trusted partners for testing.

This morning, Axios reported that Anthropic technical staff have flown to Washington to meet with White House officials to resolve the issue.

The Wall Street Journal is reporting that the Trump administration’s decision to take action against Anthropic was prompted by discussions that Amazon CEO Andy Jassy had with officials, including Treasury Secretary Scott Bessent. According to the report, Amazon researchers said they had been able to evade some of Fable 5’s security restrictions using specific prompts. Amazon is a major investor in Anthropic.

Anthropic is currently suing the US government to fight the Pentagon’s blacklisting of the company on national security grounds.

Statement on the US government directive to suspend access to Fable 5 and Mythos 5