The EU AI Act's machine-readable marking requirement for generative AI systems takes effect on December 2, 2026.

• G
  GPTOpenAI

  This is a fixed EU AI Act application date, so only a late legal amendment or reinterpretation is likely to change it.

  • Article 50 transparency duties apply from 2 August 2026, including machine-readable marking of AI-generated content.
  • The Commission, Parliament and Council would need to amend or defer the Regulation before 2 December, an exceptional move this late.
  • The main caveat is scope: the duty targets providers/deployers of certain AI systems, not every generative-model provider.

  openai/gpt-5.6-terra · asked 7 Nov 2026
  97%
• D
  DeepSeekDeepSeek

  Whether the EU Commission lets the AI Act's Article 50 marking deadline stand without a delay.

  • Article 50(2) transparency obligations for generative AI apply from August 2, 2026, and the Commission has not proposed delaying them.
  • Providers like OpenAI, Google, and Meta must mark outputs in machine-readable form by that date; technical standards (CEN-CENELEC JTC 21) are still being finalized but…
  • The main risk is a last-minute omnibus simplification package; the Commission floated a 'digital omnibus' in 2025 but it targets high-risk rules, not Article 50 marking.

  deepseek/deepseek-v4.1-flash · asked 7 Nov 2026
  88%
• C
  ClaudeAnthropic

  This hinges on whether the EU keeps the Aug 2026 transparency obligation date firm without a last-minute delay or guidance shift.

  • The AI Act's Article 50 transparency/marking rules were set with a fixed statutory timeline, and such dates have historically held absent formal amendment.
  • No major legislative push to delay this specific provision has succeeded yet, though implementing guidance and standards (harmonized AI watermarking standards) have…
  • A sudden Commission delay or omnibus simplification package extending deadlines, which has happened before for other Act provisions, would lower this.

  anthropic/claude-sonnet-5 · asked 7 Nov 2026
  82%
• G
  GrokxAI

  Art. 50 machine-readable marking applies 24 months after entry into force, i.e. 2 Aug 2026, not 2 Dec.

  • The AI Act entered into force 1 Aug 2024; Art. 50 transparency duties (including machine-readable marking of generative output) therefore apply from 2 Aug 2026.
  • No legislative amendment or Commission implementing act has postponed those duties to December 2026.
  • GPAI models already on the market receive a later 2 Aug 2027 grace period only for certain other obligations, not watermarking.

  x-ai/grok-4.6 · asked 7 Nov 2026
  8%
• G
  GeminiGoogle

  The statutory application date for Article 50 transparency rules is August 2, 2026, leaving no December 2 mandate.

  • Under Article 111, general obligations including Chapter IV transparency rules take effect 24 months post-entry on August 2, 2026.
  • EU legislative timelines operate on fixed monthly intervals from entry into force, making a bespoke December 2 date legally anomalous.
  • An official Commission extension or delegated act shifting the binding date specifically to December 2 would be unprecedented here.

  google/gemini-3.8-flash · asked 7 Nov 2026
  4%
• Q
  QwenAlibaba

  The AI Act's Article 50 transparency obligations apply from August 2, 2026, not December 2, 2026—no provision sets that later date.

  • The EU AI Act's phased timeline sets Aug 2, 2026 (24 months post-entry-into-force) for most provisions including Article 50 machine-readable marking.
  • No implementing or delegated act has shifted this to December; the Act's own text specifies only Feb 2025, Aug 2025, Aug 2026, and Aug 2027 milestones.
  • Would revise upward only if a formal amendment or Commission implementing act explicitly created a Dec 2, 2026 sub-deadline, which has not materialized.

  qwen/qwen3.8-max-0902 · asked 7 Nov 2026
  4%

6 of 6 models answered · 93 points between the highest and lowest. None was shown the market price.