GPT-6 Stole the Show, but Anthropic, Meta and Google Also Had New AI Models This Week
It’s been a busy week for AI developers.
This week, OpenAI, Anthropic, Meta, and Google all unveiled new AI models, with OpenAI's GPT-6 Astra capturing the public's attention. However, the other companies also made significant strides in AI model development. GPT-6 Astra, OpenAI's latest model, boasts superior capabilities in cybersecurity and software engineering, marking it as the company's most intelligent model yet.
The model also exhibits strong performance in multi-step agentic workflows, scientific discovery, and financial modeling, and excels in computer use compared to its predecessor, ChatGPT 5.6. OpenAI plans to roll out Astra to Plus, Pro, and Business users over the following days.
Meanwhile, Anthropic introduced enhancements to its Fable and Mythos models. Fable 5.1 and Mythos 5.1 are essentially the same model with distinct safeguard configurations. Fable is intended for general users, while Mythos caters to researchers and cybersecurity experts. The update sets a new benchmark for coding, knowledge work, and long-running problem-solving tasks.
Fable 5.1, when operating on low or medium effort, matches Fable 5's performance at a lower cost. Fable 5.1 is accessible to the general public, while Mythos remains limited to Anthropic's trusted access programs.
Meta also made waves this week with its release of Muse Spark 1.3. This model showcases enhanced reasoning and superior performance in agentic and coding tasks. Meta designed Muse Spark 1.3 to engage with users, asking clarifying questions for vague prompts and confirming actions in agentic workflows. The model can be accessed via Muse Code and Meta's Model API.
Lastly, Google unveiled two new models, Gemini 3.8 Flash and 3.8 Flash Cyber. These models build upon the success of Gemini 3.7 Flash, announced earlier in the week. Gemini 3.8 Flash offers next-generation intelligence for agentic workflows and cybersecurity, while 3.8 Flash Cyber is currently accessible to a limited audience through Google's Fairwind Program.
Written by urgent.news from CNET's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
