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AI Atlas
Time machine

AI Atlas as of 9 Sept 2026

Pick any date: the models that existed, their context lengths and status at the time, the provider prices valid that day, the benchmark leaders known by then, the hardware. Every value opens the claim that establishes it, with its validity interval.

ObservedThis date is inside the observation history: values are claims that were current that day.

Observation history starts . AI Atlas observation history starts at 2026-08-28T00:00:00+00:00. The state is taken from claims, prices and results as they were known at the end of that UTC day.

Models existingCanonical models whose release date (or first dated claim) is on or before the date.

984

Offers validPrice rows whose validity interval covers the date (append-only history).

0

Benchmark leadersBenchmarks with at least one result observed by the date.

0

HardwareHardware entities released on or before the date.

1

BasisReconstructed = before the first observation; observed = inside the recorded history.

observed

Context lengths

Context windows as of 9 Sept 2026 0 with a dated value

Models as of 2026-09-09
ModelOrganizationParamsContext (as of)Context (today)OpennessStatus (as of)Status (today)ReleasedBasisHistory
No canonical model existed at this date according to release dates and dated claims.

“Today” columns compare the as-of value with the current record; “same” means no recorded change. Click any as-of value for the claim behind it (source, tier, valid from → to).

Only models with a context-length claim valid on that date are listed (sorted by context). Models without a dated claim are omitted rather than guessed.

Shareable: this URL reproduces the view. Per-entity: every entity page has a History tab with the same as-of reconstruction. What changed since? Diff 9 Sept 2026 → today. Methodology →