xAI releases Grok 4.5 as cheaper Opus-class alternative

Ramp, a financial operations platform, has launched Router, an AI model routing service that allows users and companies to access and switch between multiple large language models through a single API. The service abstracts away the complexity of managing different LLM providers, enabling organizations to route requests dynamically across various models. This move positions Ramp to compete in the growing infrastructure layer for AI applications.

Alibaba released Qwen3.8-27B, a 27-billion-parameter open source model on Friday that runs locally without cloud APIs and delivers frontier-class coding and reasoning capabilities. Third-party benchmarks show it matches or exceeds proprietary models from months ago, with scores equivalent to OpenAI's GPT-5.6 Luna and outperforming Claude Opus 4.8 on agentic tasks. The model runs on consumer hardware when quantized to 4-bit, making frontier-class AI accessible without vendor dependency.

Anthropic's annualized revenue has reached $65 billion, with the AI model maker adding $18 billion in annualized revenue over a two-month period. The figure represents a significant acceleration in the company's commercial traction as demand for its Claude AI models grows. The milestone underscores the rapid scaling of revenue in the generative AI sector among leading model makers.

Chinese AI developer Z.ai released GLM-5.3, an open-source model it claims matches Anthropic's Mythos 5 in cybersecurity capabilities. The Beijing-based company, also known as Zhipu, positioned the model as a significant improvement over its predecessor GLM-5.2. The release marks another step in China's competitive push in generative AI development.