Claude Opus 4.8 extends long-running and multi-agent work
Anthropic released Claude Opus 4.8 globally with stronger agentic and computer-use performance plus dynamic workflows capable of coordinating hundreds of parallel subagents.
TOWARD DOOM70confidence 98/100
Why it moved the index
The release improved unattended tool use, computer use, and long-running coordination while making codebase-scale work by hundreds of subagents available to paying users.
AUDIT TRAIL
Assessment history
- R1Toward 70 · confidence 98
New historical launch story for an already authoritative exact-version model record.
11 Aug 2026