GPAI Ledger › Muse Glimmer (Meta)
Muse Glimmer
Public summary of training content · Article 53(1)(d), Regulation (EU) 2024/1689
Provider: Meta — status: Published
Meta publishes a public summary of training content for Muse Glimmer under the EU AI Act; every version this ledger has captured is archived below with its hash and timestamp proof.
AIAL metadata: summary dated 2026-08-10, model released 2026-08-10, eval page
Latest version differs from the previous one: 12 word(s) of extracted text changed between the captures of 17 Aug 2026 and 22 Aug 2026 (the comparison re-extracted both copies with one tool; the archived extracts on this site need not reproduce this count); both versions are archived below with their full text.
Small difference observed: the newest live copy and the archived third-party copy of this summary differ in 12 word(s) of extracted text (similarity 0.9968; the comparison re-extracted both copies with one tool, so the archived extracts on this site — made by different extractor eras — need not reproduce this count). The differing words are listed in the repository's drift report; compare the extracted text of the two document versions below.
Document versions
Rows may capture the same summary from different sources or formats (the provider's site, AIAL's archived copy); sizes and hashes are comparable only within one URL.
| Capture (UTC) | Source of copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260912T062143Z | AIAL archived copy | raw.githubusercontent.com/AIAccountabili…ve/Muse_Glimmer_2026_09_08.pdf | 0247cea31889c01e… | 273,464 | the state that stood upstream from 8 Sep 2026 (fetched here on 12 Sep 2026); bytes identical to 20260822T072953Z |
| 20260822T072953Z | provider site | scontent-ams2-1.xx.fbcdn.net/m1/v/t0.841…oc=…&ccb=…&oh=…&oe=…&_nc_sid=… | 0247cea31889c01e… | 273,464 | Meta CDN-hosted PDF (signed URL); content changed vs the previous capture of this target (12 word(s) differ in the extracted text) |
| 20260818T164645Z | AIAL archived copy | aial.ie/research/gpai-training-transpare…ve/Muse_Glimmer_2026_08_17.pdf | 5f29be94fba3e80d… | 271,900 | bytes identical to 20260817T085543Z |
| 20260817T085543Z | provider site | scontent-mxp2-1.xx.fbcdn.net/m1/v/t0.841…oc=…&ccb=…&oh=…&oe=…&_nc_sid=… | 5f29be94fba3e80d… | 271,900 | Meta CDN-hosted PDF (signed URL) |
Watch-surface captures
Captures of the page(s) where the document is published (portals, hubs, docs pages) — monitored for change detection; not the document itself.
| Capture (UTC) | Source of copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260918T061106Z | provider site | transparency.meta.com/reports/regulatory-transparency-reports/ | 92e532a049697e3b… | 848,784 | rendered page (captured with a browser); page text changed vs the previous capture of this target (43 word(s) differ in the extracted text) |
| 20260821T110825Z | provider site | transparency.meta.com/reports/regulatory-transparency-reports/ | d45e518728b3cbf7… | 837,600 | rendered page (captured with a browser); page text changed vs the previous capture of this target (82 word(s) differ in the extracted text) |
| 20260818T172149Z | provider site | transparency.meta.com/reports/regulatory-transparency-reports/ | fa3321b0f687d4c9… | 877,324 | rendered page (captured with a browser) |
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 copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260913T121348Z | AIAL evaluation page | aial.ie/research/gpai-training-transparency/evals/meta-muse-glimmer/ | 3ad03664dbd32479… | 20,145 | |
| 20260913T121342Z | AIAL evaluation | raw.githubusercontent.com/AIAccountabili…n/evals/meta-muse-glimmer.yaml | 6dd2d8b03b966957… | 3,208 | bytes identical to 20260912T062245Z |
| 20260912T062245Z | AIAL evaluation (earlier state) | raw.githubusercontent.com/AIAccountabili…e/evals/meta-muse-glimmer.yaml | 6dd2d8b03b966957… | 3,208 | the state that stood upstream from 10 Sep 2026 (fetched here on 12 Sep 2026) |
| 20260831T114535Z | AIAL evaluation page | raw.githubusercontent.com/AIAccountabili…/evals/muse-glimmer/index.html | a6ccdc8382d32975… | 13,226 | the state that stood upstream from 17 Aug 2026 (fetched here on 31 Aug 2026) |
| 20260829T190942Z | AIAL evaluation (earlier state) | raw.githubusercontent.com/AIAccountabili…9d493e/evals/muse-glimmer.yaml | 58b5b1c417c89873… | 3,972 | the state that stood upstream from 17 Aug 2026 (fetched here on 29 Aug 2026); bytes identical to 20260829T143210Z |
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 copy | URL | SHA-256 | Bytes | Notes |
|---|---|---|---|---|---|
| 20260831T121132Z | AIAL evaluation page | aial.ie/research/gpai-training-transparency/evals/muse-glimmer/ | a6ccdc8382d32975… | 13,226 | bytes identical to 20260831T114535Z; superseded 13 Sep 2026: AIAL renamed this evaluation (its file is now meta-muse-glimmer.yaml), and its page is now tracked under the new name |
| 20260829T143210Z | AIAL evaluation | raw.githubusercontent.com/AIAccountabili…y/main/evals/muse-glimmer.yaml | 58b5b1c417c89873… | 3,972 | superseded 13 Sep 2026: AIAL renamed this evaluation file to meta-muse-glimmer.yaml, which is now tracked; this address has answered 404 since 12 Sep 2026 |
| 20260820T110717Z | provider site | scontent-mxp1-1.xx.fbcdn.net/m1/v/t0.841…oc=…&ccb=…&oh=…&oe=…&_nc_sid=… | 5f29be94fba3e80d… | 271,900 | Meta CDN-hosted PDF (signed URL); bytes identical to 20260817T085543Z; duplicate target identity minted 20 Aug 2026 when Meta's CDN shard hostname rotated; bytes identical to the canonical target, which now tracks the content-addressed path only |
Last checked: 2026-10-05 (re-checked on the daily schedule — see Methodology). Seen a summary we missed? See the contact details.