Bounded discovery
The corpus reviews named official launch and news indexes, required archive pages, and directly linked first-party technical materials. The window begins 2024-01-01 and ends 2026-09-01, inclusive. Mutable indexes can be incomplete.
Public reporting research ledger · static at 2026-09-01
Frontier Benchmark Observatory
Trace which benchmarks six frontier AI labs name in reviewed first-party materials, when those references appear, and the exact evidence behind each occurrence.
Read this as a bounded reporting review, not a leaderboard.
An omission means only that a benchmark was not found in the reviewed first-party source bundle. It does not establish whether a lab ran an evaluation privately or elsewhere.
- Window
- 2024-01-01 to 2026-09-01, inclusive
- Labs
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- Releases
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- Evidence records
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Continuous time · every included release
Reporting timeline
Pan horizontally or adjust the range. Every release remains available as a named node.
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Standard scale
Each row is one lab. Focus a named release node for its preview, then activate it to open all evidence occurrences.
Release preview
Hover or focus a named node to preview it. Activate the node for complete evidence details.
No benchmark matches this filter
All release nodes remain visible. Clear the benchmark or category filter to restore labels.
Complete release denominator
Release ledger
Every included release appears here, including releases with no qualifying benchmark occurrence in reviewed reporting.
| Date | Lab | Release | Lineage | Class | Coverage | Named occurrences |
|---|
Chronological reporting sequence
Benchmark history
Transitions are lineage-scoped and describe reviewed public reporting only.
First-party provenance
Source and evidence detail
Open a record for its source revision, exact locator, narrow evidence summary, setup disclosure, and review state.
Boundaries before interpretation
Methodology and coverage
What an omission means
“Not reported,” “dormant,” and “outdated” refer only to comparable sequences in reviewed public reporting. They do not establish that an evaluation was not run, discontinued, or unavailable privately.
Included releases
Text and vision-language foundation models, reasoning and coding variants, previews, instruct variants, dated checkpoints, and dated point revisions are in scope. Modality-specific generators, robotics, and embedding-only releases are out of scope.
Evidence policy
Occurrences require a first-party source, revision state, precise locator, narrow paraphrase, explicit setup disclosures, and review state. Entries copied from comparison tables and third-party materials are excluded.
Public coverage and quarantine
Quarantined candidates are withheld from verified occurrences until a concrete evidence gap can be resolved. Counts do not predict what missing material would show.
Read canonical reporting-status definitions, algorithms, examples, cautions, and version →
Progressive-enhancement fallback
Complete occurrence table
All verified occurrence records represented by the interactive views, available without pointer input.
| Date | Lab | Release | Benchmark | Category | State | Source |
|---|