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Changes/Claude Opus 4 Model Launch and Legacy Model Migration
MajorAnthropicNew Launch

Claude Opus 4 Model Launch and Legacy Model Migration

Anthropic has launched Claude Opus 4, and is migrating users from legacy models, recommending improved performance with the new model.

Apr 20, 2026 (UTC)Views:2

Impact Assessment

Cost0
Reliability0
Migration3
Quality3
Compliance0

Sources

docs
Anthropic Models Docs

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