# Elon Musk praised Anthropic's new AI model Opus 4.8 in a post on X. Musk recently lost his legal battle against OpenAI and CEO Sam Altman.

*genai · news · 2026-05-29 · Times Now*

## Key points

- Elon Musk publicly praised Anthropic's Claude Opus 4.8 model on X, highlighting its reasoning skills.
- Anthropic claims Claude Opus 4.8 introduces improved 'self-honesty' to help the AI admit uncertainty.
- Anthropic recently became the world's most valuable AI startup after a $65 billion funding round.
- The new valuation for Anthropic reportedly stands at $965 billion, surpassing OpenAI.

Elon Musk praised Opus 4.8 in a post on X. Elon Musk may have recently lost his high-profile legal battle against OpenAI and CEO Sam Altman, but the billionaire entrepreneur is still leaving no stone unturned to take jabs at the company behind the popular AI chatbot ChatGPT. Earlier this month, a US court ruled against Musk in his lawsuit against OpenAI. The case accused OpenAI and Altman of moving away from the company's original non-profit mission and focusing more on profits. However, the court dismissed Musk's claims, saying the lawsuit was filed too late. Musk has said he plans to appeal the decision. Now, Musk has turned his attention to one of OpenAI's biggest rivals -- Anthropic. The Tesla and xAI chief recently praised Anthropic's newly launched AI model, Claude Opus 4.8, in a post on social media platform X. His reaction came after Anthropic announced that the latest version of its flagship AI model offers better reasoning abilities and improved 'self-honesty' -- a feature designed to help the chatbot admit uncertainty instead of confidently giving wrong answers. Anthropic Set To Bring Claude Mythos Tier To All Users In Coming Weeks: Key Details Anthropic, which was founded by former OpenAI researchers, has emerged as one of the strongest competitors to OpenAI in the global AI race. The company is backed by major tech firms and has been positioning its Claude AI models as safer and more reliable alternatives for users and businesses. Recently, Dario Amodei-led Anthropic became the world's most valuable AI startup, surpassing OpenAI. The milestone came after Anthropic announced a major new funding round worth $65 billion, which reportedly valued the company at $965 billion. Anthropic Warns Claude AI Can Break Rules And Make Human-Like Mistakes Well, overall, Musk's public praise is important because the AI industry is currently witnessing intense competition between companies such as OpenAI, Anthropic, Google, Meta and Musk's own AI startup xAI. Get Latest News live on Times Now along with Breaking News and Top Headlines from Technology Science and around the world. Latest News Bharat Upadhyay author Bharat Upadhyay is an Assistant News Editor at Times Now, where he currently leads the Tech vertical, covering everything from gadgets and apps, cyber ... View More News Technology & Science End of Article

**Companies:** OpenAI, Google, Meta, Anthropic, Tesla, xAI
**Countries:** United States

[Read the full story on Times Now](https://www.timesnownews.com/technology-science/after-losing-case-against-sam-altman-elon-musk-praises-openai-rival-anthropics-new-ai-model-opus-4-8-article-154425040)

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