Claude Opus 4.6 Hits 1M Context GA — 78.3% on MRCR v2
ALEX: Welcome to the AI Daily Roundup for Wednesday, March 18, 2026 — we've got a packed digest today, so let's get into it. SARAH: We'll start with Claude, because Anthropic had a big day. The 1 million token context window is now generally available for Opus 4.6 and Sonnet 4.6, Opus 4.6 scores 78.…
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