Anthropic's Claude Opus 4.8 is here with 3X cheaper fast mode and near-Mythos level alignment

Opus 4.8 shows a growing tendency to reason explicitly about how its outputs will be graded, including in environments where ...

Anthropic Launches Claude Opus 4.8 With Gains in Coding and Honesty

Anthropic today announced the launch of its latest AI model, Claude Opus 4.8. Anthropic claims the model is a "more effective ...

Anthropic upgrades Claude with new Opus 4.8 model, details here

Anthropic describes Claude Opus 4.8 as having “sharper judgement, more honesty about its progress, and the ability to work ...

Claude Opus 4.8: Anthropic makes a more 'honest' AI

Here's how you can put Anthropic's claims to the test.
The Next Web

Anthropic’s Claude Opus 4.8 is its most honest AI model yet, and Mythos is coming in weeks

Anthropic releases Claude Opus 4.8 with sharper judgement and fewer uncaught code flaws. Mythos-class models coming in weeks. Series H raises $65B at $965B valuation.
Unite.AI

Anthropic Unveils Claude Opus 4.8 as the AI Race Intensifies Against OpenAI

Anthropic has officially launched Claude Opus 4.8, its newest flagship AI model, in what is rapidly becoming one of the most ...

Opus 4.8 Just Dropped: the Hidden Features You Need to Try Right Now

Opus 4.8 fixes the laziness of 4.7. Explore the May 2026 Claude Code update, including improved autonomy and token efficiency.

AI Model Release Tracker: Opus 4.8's misalignment rates similar to Claude Mythos Preview

AI Model Release Tracker: Opus 4.8's misalignment rates similar to Claude Mythos Preview ...