Date: 2026-05-30
Topic: Anthropic's triple drop — Claude Opus 4.8 release + $65B raise at $965B valuation (eclipses OpenAI for first time) + Mythos teased for wide release in coming weeks.
Why this story
May 28 was a once in a cycle day for Anthropic. Three news beats stacked: model ship, mega round, next class teased. Run 6 (May 23) covered Anthropic crossing $900B but the $965B / Mythos / Opus 4.8 combination was fresh on May 30 and most coverage was still siloed (model coverage vs funding coverage vs Mythos coverage). Synthesizing into one builder facing breakdown was a clear gap.
Key facts used
- Opus 4.8 USAMO: 96.7% vs 69.3% on 4.7
- Agentic coding: 64.3% → 69.2%
- Multidisciplinary reasoning w/ tools: 54.7% → 57.9%
- Knowledge work: 1753 → 1890
- 4x less likely to leave flaws in code
- Fast mode: 2.5x quicker, 3x cheaper, same price as 4.7
- Dynamic Workflows: hundreds of parallel subagents per Claude Code session
- $65B raise at $965B valuation (Altimeter, Dragoneer, Greenoaks, Sequoia)
- 7 founders into world's top 500 richest in a single day (Bloomberg record)
- Mythos: new class, finds + chains software vulnerabilities, Glasswing partners already have it, wide release in coming weeks
- EU regulators asking US for talks on Mythos cyber capabilities
Deliverables