EU General-Purpose AI Code of Practice

What the Code Commits Adherents To

Drafted by the European AI Office under Article 56 of Regulation (EU) 2024/1689, the final Code (published 10 July 2025) translates the AI Act's general-purpose-AI obligations into 13 commitments and roughly 40 measures across three chapters. Chapter 1 (Transparency) operationalises the Art. 53(1)(a)-(c) model-documentation and training-data-summary duties; Chapter 2 (Copyright) implements Art. 53(1)(c) reservation-of-rights respect and Art. 53(1)(d) text-and-data-mining opt-out compliance; Chapter 3 (Safety & Security) gives operational form to the Art. 55 systemic-risk-tier duties. As ¹ situates it, the Code is the institutional hinge of a risk-based regime - yet the terminology it inherits is unstable: ² document how 'GPAI' and 'foundation model' shifted across Act drafts, leaving the Code's core categories contested.

Standing Relative to Binding Law

The Code is a voluntary instrument, not a regulation: providers may demonstrate compliance by alternative means. Its leverage flows from Art. 56(8) of Regulation (EU) 2024/1689, under which adherence yields a presumption of conformity with the underlying Art. 53 and Art. 55 obligations - a rebuttable evidentiary shortcut, not a safe harbour. This distinguishes it from firm self-pledges (Anthropic's RSP, OpenAI's Preparedness Framework) and intergovernmental codes (Seoul, G7 Hiroshima), which carry no statutory presumption. The AI Office monitors implementation; the Art. 65 binding-decision procedure routes cross-authority disputes. The binding floor remains the Act: GPAI obligations apply from 2 August 2025, enforcement from 2 August 2026 (Regulation (EU) 2024/1689). Whether binding floors suffice is contested - ³ urge a compute-threshold treaty with audit powers beyond a voluntary code.

Critiques and Compliance Gaps

Three fault-lines recur. First, the copyright chapter rests on a TDM opt-out whose enforceability is contested: ⁴ catalogues post-LAION obstacles - robots.txt ambiguity, machine-readability, memorisation - concluding the exceptions 'seem workable in theory' but strain in practice, while ⁵ argues the Art. 3 CDSM research exception grants rightsholders no control at all; ⁶ reads opt-in/opt-out as a 'missed opportunity'. Second, the transparency chapter only implicitly touches synthetic-content provenance; ⁷ finds just 38% of image generators watermark adequately - a gap living under Art. 50, not the Code. Third, the safety chapter's systemic-risk evaluations are challenged by ⁸, whose 'accumulative' x-risk class evades discrete capability thresholds.

Adoption Trajectory and Outlook

Adoption is partial but front-loaded among frontier labs: 23-plus providers have signed, including Anthropic, OpenAI, Google, Microsoft, Amazon, IBM, Mistral and Aleph Alpha. The signature pattern is itself diagnostic - Meta declined outright, and xAI subscribed only to the Safety & Security chapter, suggesting copyright and transparency may draw sharper resistance. Because the Code is the AI Office's canonical reference and the rulebook national competent authorities consult during inspections, chapter-selective adherence will shape how the Art. 55 systemic-risk tier is enforced from 2 August 2026. The deeper question - whether voluntary capability evaluations suffice for catastrophic and dual-use threats - stays open: ⁹ maps AI-biosecurity pathways exceeding what a presumption-of-compliance regime can police, and ¹⁰ contends international law may oblige states to go further.

Cross-jurisdiction comparison

How peer instruments treat the topics EU General-Purpose AI Code of Practice governs.

°= industry self-imposed voluntary framework. Comparing a voluntary code's "governs" tint with a binding regulation's "governs" tint flattens the legal-force distinction; use the instrument-page banner for the operative status of each.

Does this instrument’s approach work? — the social-science evidence

Aggregated over the 5 topics this instrument governs: whether each harm is empirically real, and whether the peer-reviewed evidence shows governance reduces it. The badge is the epistemic status of the evidence— “thin”/“absent” efficacy evidence is itself a finding (the “second silence”). Each epistemic-status label is Policy Window's editorial assessment of the cited evidence base (a structured classification), not a verdict any single source issues.

Of the 5 governed topics with a social-science evidence review, evidence that governance reduces the harm is established for 0, contested for 0, thin for 1, and absent for 4 — for most, no replicated study yet shows this instrument's approach works (the "second silence").

• Catastrophic & Existential Risk

  • Is the harm real?evidence: contested

    The catastrophic-uplift premise is genuinely contested: the empirical uplift studies that exist find current frontier models add little. RAND's red-team study found no statistically significant difference in the viability of bioweapon-attack plans produced with vs. without LLMs (Mouton, Lucas & Guest 2024), and OpenAI's 100-participant trial found GPT-4 gave at most a mild, non-significant accuracy uplift (mean +0.88 out of 10 for PhD experts, +0.25 for students; Patwardhan et al. 2024). Honest caveat: the harm is forward-looking, not yet observed — expert opinion on the catastrophic tail is sharply split (median AI researcher puts ~5% on extremely-bad/extinction outcomes, mean ~9-16% across differently-framed questions, n=2,778; Grace et al. 2024), and forecasters underestimated how fast risk-relevant capabilities (e.g. virology troubleshooting) actually arrived (Forecasting Research Institute 2025), so the relevant capabilities are a moving target rather than a settled magnitude.

    Sources: Mouton, Lucas & Guest 2024 (RAND RR-A2977-2, Operational Risks of AI in Large-Scale Biological Attacks: Results of a Red-Team Study); Patwardhan et al. 2024 (OpenAI, Building an Early Warning System for LLM-aided Biological Threat Creation); Grace et al. 2024 (Thousands of AI Authors on the Future of AI, arXiv:2401.02843); Forecasting Research Institute 2025 (Forecasting LLM-enabled Biorisk and the Efficacy of Safeguards)

  • Does governance work?evidence: absent

    There is essentially no impact evidence that catastrophic-risk governance reduces catastrophic risk, and structurally there cannot yet be: the harm is a low-probability civilisational tail event, so no controlled trial or before/after evaluation of a realised catastrophe is possible. The dominant instruments are recent, voluntary developer frameworks (Anthropic's Responsible Scaling Policy 2023; OpenAI's Preparedness Framework 2023) built on if-then capability thresholds the developers themselves describe as speculative and qualitative rather than validated risk thresholds. The closest evidence is adjacent and indirect: trained-in deceptive behaviours can persist through standard safety training (Hubinger et al. 2024) — a demonstration that current mitigation may be insufficient, not that any governance regime works — and Anthropic's documented loosening of earlier commitments (RSP 2025 dropped the original pledge to define higher-tier ASL evaluations before developing the corresponding models) illustrates that even the strongest voluntary regimes lack external enforcement or measured efficacy.

    Sources: Anthropic 2023 (Responsible Scaling Policy); OpenAI 2023 (Preparedness Framework); Hubinger et al. 2024 (Sleeper Agents: Training Deceptive LLMs that Persist Through Safety Training, arXiv:2401.05566); Hendrycks, Mazeika & Woodside 2023 (An Overview of Catastrophic AI Risks, arXiv:2306.12001)

• Foundation Models / GPAI

  • Is the harm real?evidence: contested

    Whether the foundation-model category maps to a coherent capability/risk tier is genuinely contested. The original case rests on scale-driven 'emergent abilities' that appear unpredictably above a size threshold (Wei et al. 2022; Ganguli et al. 2022 documented capabilities that are smoothly predictable in aggregate loss yet locally surprising), but Schaeffer, Miranda & Koyejo (2023, a NeurIPS Outstanding Paper) showed many 'emergent' jumps are artefacts of discontinuous metrics and dissolve under linear/continuous scoring — implying capability scales more smoothly than a sharp tier would suggest. Honest caveat: this is a live empirical disagreement about measurement, not a settled finding either way, and compute (the regulatory proxy) is an imperfect stand-in for capability or risk regardless of which side is right.

    Sources: Wei et al. 2022 (Emergent Abilities of Large Language Models, TMLR; arXiv:2206.07682); Schaeffer, Miranda & Koyejo 2023 (Are Emergent Abilities of Large Language Models a Mirage?, NeurIPS 2023, Outstanding Paper; arXiv:2304.15004); Ganguli et al. 2022 (Predictability and Surprise in Large Generative Models, ACM FAccT; DOI 10.1145/3531146.3533229)

  • Does governance work?evidence: absent

    There is no impact evaluation showing that GPAI/foundation-model governance reduces harm — the rules are too new (EU AI Act GPAI obligations and the 10^25-FLOP systemic-risk presumption only began binding on 2 August 2025) and the central regulatory lever is itself contested: Hooker (2024) argues compute thresholds are a shortsighted proxy because compute does not reliably track capability or risk, and the thresholds already diverge across jurisdictions (EU 10^25 vs. the now-rescinded US EO 14110's 10^26 operations, rescinded 20 January 2025). The mandated mitigation methods also lack validated efficacy: model evaluation and red-teaming face well-documented coverage limits and an 'audit gap' in the survey/position literature (behavioural testing cannot establish the absence of untested failure modes), and adversarial red-teaming repeatedly defeats deployed safeguards — the UK AI Safety Institute reports finding universal jailbreaks for every frontier system it has tested, and a large public agent-injection competition elicited policy violations across all 22 frontier models tested from ~1.8M attacks (Zou et al. 2025). Even compliant evaluation therefore cannot yet certify the safety the rules demand. (Caveat: this is an absence-of-evidence claim — no efficacy study has been done — not evidence the rules are ineffective.)

    Sources: Hooker 2024 (On the Limitations of Compute Thresholds as a Governance Strategy, arXiv:2407.05694); EU AI Act Arts. 51 & 55 (GPAI systemic-risk presumption, 10^25 FLOP; binding 2 Aug 2025); US EO 14110 (10^26-operation reporting threshold, rescinded 20 Jan 2025 by EO 14148); Zou et al. 2025 (Security Challenges in AI Agent Deployment: Insights from a Large Scale Public Competition / Gray Swan Arena, arXiv:2507.20526 — 22 frontier agents, ~1.8M attacks); UK AI Safety/Security Institute, Frontier AI Trends Report (universal jailbreaks for every system tested); METR, Common Elements of Frontier AI Safety Policies (2024)

• Synthetic Content Provenance

  • Is the harm real?evidence: contested

    The harm provenance targets is real but concentrated, and the technical premise that the mandated signal survives is itself empirically shaky. Synthetic-media harm is well documented in two domains: non-consensual intimate imagery (Ajder et al.'s 2019 Deeptrace audit found 96% of deepfake videos were pornographic and effectively 100% targeted women) and impersonation fraud (the Arup case, ~US$25.6M / HK$200M lost via a deepfake video call). The honest caveat is twofold: a feared broad political-misinformation harm is not yet demonstrated at scale, and CS work shows invisible watermarks are removable in practice (Jiang, Zhang & Gong 2023, WEvade, evade detection via adversarial perturbation; Zhao et al. 2024 prove pixel-level watermarks are provably removable via regeneration attacks), so the provenance signal a rule would mandate is itself contested.

    Sources: Ajder, Patrini, Cavalli & Cullen 2019 (Deeptrace, 'The State of Deepfakes: Landscape, Threats, and Impact'); Jiang, Zhang & Gong 2023 ('Evading Watermark based Detection of AI-Generated Content', ACM CCS 2023); Zhao et al. 2024 (NeurIPS, 'Invisible Image Watermarks Are Provably Removable Using Generative AI'); Arup deepfake fraud (CNN Business, 2024-05-16, US$25.6M)

  • Does governance work?evidence: thin

    There is no impact evaluation showing that mandated provenance/labeling reduces synthetic-media harm; the major mandates (China's GenAI labeling Measures, effective 2025-09-01; EU AIA Art. 50, machine-readable marking) are too new and unevaluated, and the delivery layer is leaky: the C2PA spec's own Security Considerations document the strip-and-repost threat, and platform audits report C2PA/Content-Credentials metadata is stripped by essentially all major social platforms on upload (consistent with Imatag's 2018 finding that ~80% of uploaded images lose metadata, only ~15% retaining it). The closest analogue evaluation literature — Pennycook, Bear, Collins & Rand (2020), the 'implied truth effect' — gives reason for caution rather than confidence: labeling only some content can make unlabeled false content seem more credible, so a partial-coverage provenance regime could backfire.

    Sources: Pennycook, Bear, Collins & Rand 2020 (Management Science 66(11):4944-4957, 'The Implied Truth Effect'); China Measures for Labeling AI-Generated Synthetic Content (eff. 2025-09-01); EU AI Act Art. 50; Imatag 2018 metadata-stripping study (~80%); C2PA Security Considerations (spec.c2pa.org) on manifest removal

• Training-Data Rights

  • Is the harm real?evidence: contested

    That foundation models ingest copyrighted and personal works without consent is undisputed; whether that ingestion produces legally cognizable reproduction harm is genuinely contested. The CS evidence that models can memorize and emit verbatim training text is robust and replicated — Carlini et al. (2021) extracted hundreds of verbatim sequences (including PII) from GPT-2, and follow-up work (Carlini et al., Quantifying Memorization, ICLR 2023) showed extraction scales log-linearly with model size and with example duplication. Honest caveat: verbatim reproduction is the exception, not the norm — the UK High Court held that Stable Diffusion's model weights never stored copies of the training images (defeating the secondary-infringement theory), and Getty abandoned its primary training-infringement claim at trial for lack of evidence, so whether the empirical phenomenon amounts to actionable harm (rather than transient, non-expressive use) remains the open question driving NYT v. OpenAI and parallel regimes.

    Sources: Carlini, Tramèr, Wallace, Jagielski, Herbert-Voss, Lee, Roberts, Brown, Song, Erlingsson, Oprea & Raffel 2021 (Extracting Training Data from Large Language Models, 30th USENIX Security Symposium); Carlini, Ippolito, Jagielski, Lee, Tramèr & Zhang 2023 (Quantifying Memorization Across Neural Language Models, ICLR 2023; arXiv:2202.07646); Getty Images (US) Inc & ors v Stability AI Ltd [2025] EWHC 2863 (Ch) (UK High Court, 4 Nov 2025 — no secondary infringement; primary training claim abandoned at trial); The New York Times Co. v. Microsoft Corp. & OpenAI (S.D.N.Y., No. 1:23-cv-11195; consolidated In re OpenAI Copyright Infringement Litigation, Apr. 2025; ongoing 2025-2026)

  • Does governance work?evidence: absent

    There is no impact evaluation showing that the CDSM Directive Article 4 TDM exception plus its Article 4(3) opt-out reservation regime actually reduces unlicensed ingestion or channels compensation to rightsholders — the evidence that the rule works as designed is itself missing. The only available evidence is early case law and doctrinal scholarship, which document the mechanism's contested operation rather than its success: in Kneschke v. LAION the Hamburg Higher Regional Court (on appeal, 10 Dec 2025) held that a rights reservation in natural language did NOT satisfy Article 4(3)'s machine-readability requirement, invalidating the opt-out (note: the first-instance Regional Court had left the Article 4 question largely open and the case ultimately turned on the Article 3 scientific-research exception, so this machine-readability holding is appellate and not yet settled — a further appeal to the Federal Court of Justice was permitted). Legal scholars characterize the Article 4 opt-out as practically difficult and unharmonized, with no observed market in TDM licences or systematic enforcement to evaluate.

    Sources: Kneschke v. LAION (Hamburg Regional Court, 27 Sept 2024, 310 O 227/23; on appeal Hamburg Higher Regional Court, 10 Dec 2025, 5 U 104/24 — opt-out held not machine-readable; further appeal to BGH permitted); Margoni & Kretschmer 2022 (A Deeper Look into the EU Text and Data Mining Exceptions, GRUR International 71(8):685-701); Quintais 2025 (Generative AI, Copyright and the AI Act, Computer Law & Security Review 56:106107)

• Transparency Obligations

  • Is the harm real?evidence: contested

    Documentation artifacts (model cards, datasheets) are well-specified as proposals and are genuinely adopted, but the empirical premise that mandated disclosure produces meaningful transparency is contested. Selbst & Barocas (2018) argue inscrutability and non-intuitiveness are distinct problems and that disclosing rules does not resolve the latter, and large-scale audits find documentation is sparsely and unevenly completed: a systematic analysis of 32,111 Hugging Face model cards (Liang et al. 2024) found environmental-impact, limitations and evaluation sections least often filled, and Bhat et al. (2023, 45 practitioners) found a substantial gap between the documentation proposal and actual practice. Honest caveat: the documentation frameworks themselves are real and adopted, so the dispute is about whether disclosure conveys decision-relevant information, not whether the artifacts exist.

    Sources: Selbst & Barocas 2018 (Fordham Law Review 87:1085-1139); Liang et al. 2024 (Nature Machine Intelligence, s42256-024-00857-z, 'Systematic analysis of 32,111 AI model cards'); Bhat et al. 2023 (CHI '23, 'Aspirations and Practice of ML Model Documentation', DOI 10.1145/3544548.3581518); Mitchell et al. 2019 (FAccT, Model Cards for Model Reporting); Gebru et al. 2021 (CACM 64(12):86-92, Datasheets for Datasets)

  • Does governance work?evidence: absent

    There is no rigorous impact evaluation showing that AI transparency mandates (model cards, training-data summaries) measurably reduce bias, misuse or accidents — the central regulatory assumption is empirically untested, partly because flagship mandates like EU AI Act Art. 53(1)(d) GPAI training-data summaries are only subject to AI Office enforcement/verification from 2 August 2026 (the obligation itself began 2 August 2025 for new models). The closest analogue, mandated consumer disclosure, shows small and context-dependent effects: Bollinger, Leslie & Sorensen (2011) found mandatory calorie posting cut average calories per transaction by about 6%, while Loewenstein, Sunstein & Golman (2014) review evidence that disclosure effects are frequently diminished or even reversed by limited attention and often change provider rather than recipient behavior. These are analogues, not AI studies; no study demonstrates that AI transparency disclosure achieves its stated downstream safety aims.

    Sources: Bollinger, Leslie & Sorensen 2011 (AEJ: Economic Policy 3(1):91-128); Loewenstein, Sunstein & Golman 2014 (Annual Review of Economics 6:391-419, 'Disclosure: Psychology Changes Everything'); EU AI Act Art. 53(1)(d) GPAI training-data summary (obligation from 2 Aug 2025; AI Office enforcement from 2 Aug 2026)

Related instruments

• EU AI Act · EU
• Executive Order 14110 on Safe, Secure, Trustworthy AI · US
• Interim Measures for Generative AI Service Management · CN
• G7 Hiroshima AI Process Code of Conduct · G7
• NIST AI Risk Management Framework · US
• Bletchley Declaration on AI Safety · global
• Seoul Declaration on Safe, Innovative and Inclusive AI · global
• NIST AI RMF Generative AI Profile · US
• California SB-1047: Safe and Secure Innovation for Frontier AI Models Act · US
• Brazil AI Bill (PL 2338/2023) · BR
• Anthropic Responsible Scaling Policy (RSP) v2 · US
• OpenAI Preparedness Framework · US
• Google DeepMind Frontier Safety Framework · US
• Meta Frontier AI Framework · US
• White House Voluntary AI Commitments · US
• Singapore Model AI Governance Framework for Generative AI · SG
• Japan METI AI Guidelines for Business · JP
• General Data Protection Regulation (GDPR) · EU
• GSA Generative AI and Specialized Computing Infrastructure Acquisition Resource Guide · US
• California SB-53: Transparency in Frontier Artificial Intelligence Act (TFAIA) · US
• UNESCO Recommendation on the Ethics of Artificial Intelligence · UNESCO
• Provisions on the Administration of Deep Synthesis of Internet Information Services · CN
• New York RAISE Act: Responsible AI Safety and Education Act · US
• Italy Law No. 132/2025 on Artificial Intelligence (Legge 23 settembre 2025, n. 132) · IT