Announcing Anthropic’s Claude 3.5 Sonnet AI Model on ChatGPT Writer

Anthropic recently unveiled their latest large language model, Claude 3.5 Sonnet. This new version boosts reasoning capabilities beyond its predecessor, Anthropic’s previous AI models while delivering performance speeds that are approximately twice as fast.

ChatGPT Writer is dedicated to providing our users with the best writing experience. To ensure this, we integrate the most advanced models available. Consequently, we're excited to announce that Claude 3.5 Sonnet is now available on ChatGPT Writer.

Revolutionizing AI Performance

Claude 3.5 Sonnet, developed by Anthropic, is the latest advancement in the Claude AI model series, pushing the boundaries of artificial intelligence technology. This new model boasts double the operational speed of its predecessor, enhancing its ability to tackle complex cognitive tasks like graduate-level reasoning (GPQA), undergraduate-level knowledge (MMLU), problem-solving, and intricate coding challenges.

With its refined understanding of nuanced language, humor, and detailed instructions, Sonnet 3.5 excels in creating relatable and engaging content, making it ideal for applications that demand high-level intellectual performance.

Claude 3.5 Sonnet abilities to handle coding tasks were evaluated in an internal anthropic test. The tasks involved fixing errors and enhancing features within existing computer programs. Claude 3.5 Sonnet performed better, completing 64% of these tasks, thanks to its ability to understand complex instructions and solve problems on its own. This makes it particularly good at updating old software to make it more modern and efficient. This test demonstrated how advanced AI tools like these can help improve the way software functions, making them valuable for developing and maintaining modern technology.

According to lmsys.org, the best AI models leaderboard, Claude 3.5 Sonnet is the second best AI model after OpenAI’s ChatGPT 4o to date.

But, in some categories like Math queries, Coding, and Multi-Turn tasks, Claude 3.5 Sonnet ranks number one among all the AI models. visit lmsys.org for more information.

Get started with Claude 3.5 Sonnet

Claude 3.5 Sonnet is now available for ChatGPT Writer Elite Plan users.

Experience the capabilities of Claude 3.5 Sonnet through our products:

• ChatGPT Writer Extension: Our extension is available in Brave, Edge, Chrome, Opera, and other Chromium-based desktop browsers.
• ChatGPT Writer Web App: Use ChatGPT Writer on mobile and unsupported browsers.