The Article 50(2) transparency compliance deadline for pre-existing AI systems takes effect on 2 December 2026.
Under the EU AI Act timeline, certain providers of AI systems placed on the market before 2 August 2026 face a 2 December 2026 deadline to implement synthetic-content marking and detection measures.
Across 6 frontier models answering independently, the panel treats this as close to settled: the median is 91%.
They do not agree: Gemini puts it at 97% and Qwen at 6%, 91 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Nothing is settled until 27 Jan 2027, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
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GeminiGoogle
The AI Act timeline is codified in Regulation 2024/1689 and altering it would require an unlikely emergency legislative amendment.
- Under Article 111(2), the transitional deadline applies automatically 28 months after entry into force without new implementation acts.
- EU regulatory deadlines are rarely postponed retroactively unless a major systemic disruption forces the Council and Parliament to act.
- An EU court injunction or urgent Commission legislative proposal to postpone Article 50(2) transparency rules would lower this odds.
97% -
DeepSeekDeepSeek
Whether the EU AI Act's Article 50(2) deadline for pre-existing systems is amended or deferred before 2 December 2026.
- The AI Act's Article 50(2) transparency obligations for pre-existing systems are set in Regulation (EU) 2024/1689, which entered into force 1 August 2024.
- The 2 December 2026 date is a fixed statutory deadline in the regulation, not subject to a further implementing act or Commission decision.
- The only realistic path to non-occurrence is a formal amendment or deferral, which would require a Commission proposal and Parliament/Council approval — no such proposal…
93% -
GPTOpenAI
It turns on whether the cited date is fixed in the AI Act’s transitional text or merely guidance subject to revision.
- EU regulations’ application dates are normally fixed unless amended through the full EU legislative process before the deadline.
- With only five weeks remaining, Parliament, Council and Commission have little practical time to enact a targeted postponement.
- A Commission correction or authoritative reading showing Article 50 excludes this legacy cohort would most reduce confidence.
91% -
ClaudeAnthropic
This is a fixed statutory deadline under the EU AI Act, unlikely to be delayed by that date.
- EU AI Act deadlines are set in binding regulation and require formal legislative amendment to change, which is a slow process.
- No current Commission proposal or Council/Parliament action has signaled delay of this specific Article 50 transparency deadline as of Oct 2026.
- Main risk is a last-minute omnibus delay (as happened with other AI Act provisions) but no confirmed move for this specific date yet.
90% -
GrokxAI
No 2 Dec 2026 date exists in Art. 50 or 113 of Reg. 2024/1689.
- Art. 50 transparency rules apply from the general 2 Aug 2026 date with no extra four-month grace for pre-existing systems.
- Art. 111 only delays high-risk operators facing significant design changes until 2027; GPAI models already on market get until Aug 2026.
- A late delegated act or amendment creating a Dec deadline would have to appear before 2 Dec, which has no precedent this close to application.
8% -
QwenAlibaba
The EU AI Act's key dates cluster in February and August; '2 December 2026' does not appear in the regulation's timeline.
- The AI Act's phased application dates are 2 Feb 2025, 2 Aug 2025, 2 Aug 2026, and 2 Aug 2027—no December milestone exists in the text.
- Article 111(2) grants pre-existing high-risk systems until 2 August 2027; Article 50 transparency obligations apply from 2 August 2026 generally, with no separate…
- A delegated or implementing act could theoretically introduce a new date, but none has been proposed or published as of late October 2026 targeting 2 December.
6%
6 of 6 models answered · 91 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 29 Oct 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.