GPAI Ledger The public record of EU AI Act training-data summaries

GPAI Ledger › GPT-5.2 (OpenAI)

GPT-5.2

Public summary of training content · Article 53(1)(d), Regulation (EU) 2024/1689

Provider: OpenAI — status: Published

OpenAI publishes a public summary of training content for GPT-5.2 under the EU AI Act; every version this ledger has captured is archived below with its hash and timestamp proof.

AIAL metadata: summary dated 2026-07-30, model released 2025-12-11, eval page

Document versions

Capture (UTC)Source of copyURLSHA-256BytesNotes
20260818T164148Zprovider sitecdn.openai.com/pdf/gpt-5-2-eu-ai-act-pub…ummary-of-training-content.pdfe929185c681e02a2…207,172

Third-party evaluation

The AI Accountability Lab scores published summaries against the Commission's template and publishes the result. These are captures of their assessment, archived here because they are revised over time and a score is otherwise unrecoverable once changed. It is AIAL's research judgement, not a legal determination, and not the provider's document. Their assessment is archived here but not served on this site or in the dataset: each capture below proves what was published and when, and points to AIAL for the content. Attribution: aial.ie.

Capture (UTC)Source of copyURLSHA-256BytesNotes
20260930T115511ZAIAL evaluation pageraw.githubusercontent.com/AIAccountabili…2026-08-17%2008%3A00%3A00.html43a81877cf45f292…20,362the state that stood upstream from 18 Sep 2026 (fetched here on 30 Sep 2026); bytes identical to 20260930T114503Z
20260930T115506ZAIAL evaluation pageraw.githubusercontent.com/AIAccountabili…vals/openai-gpt-5.2/index.html43a81877cf45f292…20,362the state that stood upstream from 18 Sep 2026 (fetched here on 30 Sep 2026); bytes identical to 20260930T114503Z
20260930T115427ZAIAL evaluation (earlier state)raw.githubusercontent.com/AIAccountabili…24a1/evals/openai-gpt-5.2.yamlebcc66bb29f16d9b…3,226the state that stood upstream from 18 Sep 2026 (fetched here on 30 Sep 2026); bytes identical to 20260930T114456Z
20260930T114503ZAIAL evaluation pageaial.ie/research/gpai-training-transparency/evals/openai-gpt-5.2/43a81877cf45f292…20,362page text changed vs the previous capture of this target (31 word(s) differ in the extracted text)
20260930T114456ZAIAL evaluationraw.githubusercontent.com/AIAccountabili…main/evals/openai-gpt-5.2.yamlebcc66bb29f16d9b…3,226page text changed vs the previous capture of this target (1 word(s) differ in the extracted text)
20260913T123041ZAIAL evaluation pageaial.ie/research/gpai-training-transparency/evals/openai-gpt-5.2/acacc00036baf116…20,755
20260913T123032ZAIAL evaluationraw.githubusercontent.com/AIAccountabili…main/evals/openai-gpt-5.2.yaml12c129a63db69697…3,226bytes identical to 20260912T062309Z
20260912T062309ZAIAL evaluation (earlier state)raw.githubusercontent.com/AIAccountabili…16ae/evals/openai-gpt-5.2.yaml12c129a63db69697…3,226the state that stood upstream from 10 Sep 2026 (fetched here on 12 Sep 2026)
20260831T114451ZAIAL evaluation pageraw.githubusercontent.com/AIAccountabili…ublic/evals/gpt-5-2/index.html9b977d5289d87178…13,189the state that stood upstream from 17 Aug 2026 (fetched here on 31 Aug 2026)
20260829T190911ZAIAL evaluation (earlier state)raw.githubusercontent.com/AIAccountabili…acecc9d493e/evals/gpt-5-2.yaml1f67391f0554d744…3,969the state that stood upstream from 17 Aug 2026 (fetched here on 29 Aug 2026); bytes identical to 20260829T142657Z

Captures of superseded target URLs

Locations this ledger previously tracked for this source (per-row notes give the reason each was superseded) — kept as faithful records of what those URLs served at capture time.

Capture (UTC)Source of copyURLSHA-256BytesNotes
20260831T120455ZAIAL evaluation pageaial.ie/research/gpai-training-transparency/evals/gpt-5-2/9b977d5289d87178…13,189bytes identical to 20260831T114451Z; superseded 13 Sep 2026: AIAL renamed this evaluation (its file is now openai-gpt-5.2.yaml), and its page is now tracked under the new name
20260829T142657ZAIAL evaluationraw.githubusercontent.com/AIAccountabili…arency/main/evals/gpt-5-2.yaml1f67391f0554d744…3,969superseded 13 Sep 2026: AIAL renamed this evaluation file to openai-gpt-5.2.yaml, which is now tracked; this address has answered 404 since 12 Sep 2026
20260818T164218ZAIAL archived copyaial.ie/research/gpai-training-transpare…archive/GPT_5_2_2026_08_17.pdfe929185c681e02a2…207,172bytes identical to 20260818T164148Z; superseded 13 Sep 2026: AIAL's renamed evaluation file (openai-gpt-5.2.yaml) names no archived copy (its archive_file_name reads None), so this address is no longer checked

Last checked: 2026-10-05 (re-checked on the daily schedule — see Methodology). Seen a summary we missed? See the contact details.