GPT-6.1 Sol
OpenAI · · 7 days after GPT-6 Luna
Partially verified
0 of 2 published values traced to a source2 primary sources, 1 archived2 not researched yet
Why this status
Cited to official documentation. Not verified because the release date and the context window could not be traced: every archived snapshot of those sources predates the release — the newest is 2026-09-28, captured before the page announced it — so the archived copy does not contain the figure. A capture from on or after 2026-09-29 would settle it.
What these states mean · How records are judged · Has this record changed?
OpenAI released GPT-6.1 Sol (gpt-6.1-sol) in the Responses and Chat Completions APIs, for complex coding and professional work at a lower cost than GPT-6 Astra.
Details
| Released | September 29, 2026 |
|---|---|
| Company | OpenAI |
| Family | GPT |
| Lineage | after GPT-6 Sol |
| Era | Agentic systems |
| Type | Language model · LLM |
| Modalities | Text + Image → Text |
| Capabilities | Coding, Structured output, Function calling, Reasoning |
| Weights | Proprietary |
| Licence | Not applicable — proprietary |
| Context window | 1.05M tokens |
| Parameters | Not researched |
Current information, elsewhere
This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.
- Current price and providers OpenRouter ↗
- Current benchmark scores Artificial Analysis ↗
Sources
Record status: partly verified · confidence 60/100 · 2 of 2 primary
Cited to official documentation. Not verified because the release date and the context window could not be traced: every archived snapshot of those sources predates the release — the newest is 2026-09-28, captured before the page announced it — so the archived copy does not contain the figure. A capture from on or after 2026-09-29 would settle it.
- developers.openai.com Official documentation archived
- developers.openai.com Official documentation
Primary means published by the organisation that made the model. Verified records require at least one.
GPT family
- GPT-4 March 14, 2023
- GPT-4o May 13, 2024
- GPT-4.5 February 27, 2025
- GPT-5 August 7, 2025
- GPT-5.1 November 12, 2025
- GPT-5.2 December 11, 2025
- GPT-5.3-Codex February 5, 2026
- GPT-5.4 March 5, 2026
- GPT-5.5 April 23, 2026
- GPT-5.6 Sol July 9, 2026
- GPT-5.6 Luna July 9, 2026
- GPT-5.6 Terra July 9, 2026
- GPT-5.6-Cyber August 10, 2026
- GPT-6 Astra September 3, 2026
- GPT-Rosalind September 8, 2026
- GPT-6 Sol September 22, 2026
- GPT-6 Luna September 22, 2026
- GPT-6.1 Sol September 29, 2026
What changed from GPT-6 Sol
Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.
- Capabilities first evidencedcoding, structured_output, function_calling
- Modalities first evidencedimage in
Not comparable: Context window (not researched on both releases); Parameters (not researched on both releases)
Compare GPT-6.1 Sol with another model →
See GPT-6.1 Sol on the interactive timeline →