Claude Opus 4.6

Model

An Opus upgrade with stronger coding, long-running agents, professional work, and a beta 1M-token context window.

Released: Feb 5, 2026
Context window: —
Modality: textimage
Open source: —
API available: —
Releases: 1

Releases

Feb 5, 2026Claude Opus 4.6 releasedClaude Opus 4.6 · 4.6Model release

Anthropic released Claude Opus 4.6 with stronger coding, longer-running agentic work, improved knowledge work, and a one-million-token context window in beta.

Anthropic Model releaseAnthropic Claude Opus 4.6