OpenAI
GPT-6.1 Sol
Announced Sep 29, 2026
Near Astra performance at a lower price
What could it do?
OpenAI reported near Astra capability in coding, computer use and professional work.
What changed?
Upgraded Sol with lower standard token prices than Astra.
Made demanding workflows more accessible to developers.
Where it fell short
Near Astra is a developer characterization; task results and usage costs vary.
Release facts were checked against the sources below. Performance claims belong to the developers; we have not independently tested these models.
Developer announcement or release logBenchmark results
A benchmark estimate, not a percentage or capability multiplier. Reasoning settings are not specified in this source table. Historical estimates can change in later snapshots.
Epoch AI methodology ↗Download the source snapshotChecked Oct 7, 2026 · CC BY 4.0Selected highest effort variant where available in the current table. Starred partial results are excluded. Claude fallback configurations can use other models when safeguards intervene.
Source: Artificial Analysis Intelligence Index ↗Download selected resultsChecked Oct 8, 2026One explicitly named variant per release. Scores come from the same Overall snapshot; preliminary entries and reported intervals are preserved. These are current ratings of earlier variants, not their launch day ratings.
Source: Text Arena ↗Download selected resultsChecked Oct 8, 2026