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Anthropic Acquires Coefficient Bio In $400 Million Stock Deal

Anthropic acquired biotech AI startup Coefficient Bio in a deal valued at approximately $400 million in stock, according to people familiar with the matter. Sources confirmed the transaction, although detailed financial terms were not publicly disclosed.

Deepening Forays Into Healthcare And Life Sciences

The acquisition follows Anthropic’s earlier launch of Claude for Life Sciences, a tool designed to support scientific research and drug discovery. The deal expands the company’s activity in healthcare and biotechnology. Anthropic is increasing its focus on applying AI models to scientific workflows, including data analysis and experimental design. Expansion into life sciences reflects broader industry trends.

Transforming Computational Drug Discovery

Coefficient Bio was founded eight months ago by Samuel Stanton and Nathan C. Frey, both former researchers at Genentech’s Prescient Design group. The company focused on applying AI to drug discovery and biological research processes. Its technology aims to improve efficiency in identifying drug candidates and analyzing biological data. Early-stage development reflects growing interest in AI-driven research tools.

Strategic Talent And Expertise Integration

Around 10 employees from Coefficient Bio will join Anthropic following the acquisition, strengthening its health and life sciences team. The group will contribute to the development of AI models for scientific and medical applications. Access to specialized talent supports the expansion of capabilities in drug discovery and biological research.

Industry Context And Outlook

Investment in AI for drug discovery has increased as companies seek to reduce development timelines and costs. Large technology firms and startups are expanding activity in this area. Further developments will depend on how effectively Anthropic integrates the team and advances its life sciences strategy.

OpenAI Brings Unlimited Text Chats To Free ChatGPT Users

Unlimited Text Conversations Roll Out

OpenAI is removing limits on text-based conversations for all ChatGPT users, following the platform’s recent milestone of surpassing one billion weekly users.

The update introduces GPT-5.6 Luna as the default model for Free and Go users, replacing GPT-5.5.

New “Think” Button For More Complex Questions

Alongside unlimited text chats, Free and Go users will gain access to a new “Think” button, allowing them to use additional reasoning power for more complex queries.

OpenAI noted that separate usage limits will continue to apply to file uploads, image generation, voice features and other multimodal tools.

Faster Responses For Paid Subscribers

The update also brings improvements for ChatGPT Plus and Pro subscribers. They will receive access to GPT-5.6 Sol, an upgraded model designed for everyday tasks such as web research, planning, writing, decision-making and answering questions. According to OpenAI, the model delivers shorter, more robust responses.

The company noted that this version is separate from the GPT-5.6 Sol model used in Codex and Work, which remains unchanged. Plus and Pro subscribers will also receive a new thinking slider, allowing them to adjust how much reasoning the model applies before generating an answer, depending on the complexity of the task.

OpenAI Reports Fewer Errors

According to OpenAI’s internal testing, GPT-5.6 Luna produces 62% fewer factual errors than GPT-5.5 Instant, while GPT-5.6 Sol reduces factual errors by 68%.

The updated GPT-5.6 Sol model is available to Plus and Pro users starting today. The remaining features for Free and Go users will roll out throughout the week, with unlimited text chats and the new Think button becoming available next week.

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