Edition
Anthropic cracks down on game cloning in Claude Code after a wave of AI-built knockoffs
Anthropic has changed Claude Code’s system prompt for Opus 5.5 to prevent recreations of existing video games; an employee said using Claude to infringe intellectual property violates its usage policy.
The restriction has been in effect for several days and also applies when a copied game is renamed or presented as original work. Users have used Opus 5.5 and GPT-6 Astra to make hundreds of unofficial browser versions of well-known games, including Halo and GTA Vice City. Osmani said Anthropic plans to keep adjusting the rules.
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Original source
The Decoder
Date stated with the source: 3. 11. 2026
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