Anthropic is upgrading its flagship AI model and says a more powerful one is coming soon

Claude Opus 4.8 brings improvements in coding and honesty, while Anthropic says Mythos-class models could reach all customers within weeks

NurPhoto / Getty Images

Anthropic released Claude Opus 4.8 on Thursday, an upgrade to its most capable generally available AI model, while signaling that its more powerful Mythos model could reach the broader public within weeks.

Benchmarks in coding, agentic tasks, reasoning, and practical knowledge work all showed gains over Opus 4.7, Anthropic said. Standard pricing carries over unchanged from the previous model, at $5 per million input tokens and $25 per million output tokens.

One of the most prominent changes in Opus 4.8 is what Anthropic describes as improved honesty. The company said the........

© Quartz