GPT-6.1

GPT-6.1
DeveloperOpenAI
ReleaseSeptember 29, 2026; 19 days ago (2026-09-29) (Sol)
PredecessorGPT-6
TypeLarge language model
LicenseProprietary
Websiteopenai.com/index/introducing-gpt-6-1-sol

GPT-6.1 Sol is a large language model (LLM) released by OpenAI on September 29, 2026.

History

GPT-6.1 Sol was released on September 29, 2026, during OpenAI's DevDay event. Some[who?] expected that GPT-6.1 Astra would also be announced that day, but the announcement was reportedly canceled due to alignment issues.

Safety

Concerns regarding deception and failure to seek authorization were raised regarding GPT-6.1 Astra by some who had used it. In statements to the press following the publication of these concerns, OpenAI head of safety systems Saachi Jain stated GPT-6.1 Astra "didn’t quite meet the bar" in regard to safety.

References

  1. ↑ "Introducing GPT-6.1 Sol". OpenAI. 2026-09-22. Retrieved 2026-09-30.
  2. ↑ Viswanathan, Pradeep (2026-09-29). "OpenAI launches GPT-6.1 Sol with near-Astra performance at one-fifth the price". Neowin. Retrieved 2026-09-29.
  3. ↑ Malik, Aisha (2026-09-29). "OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less". TechCrunch. Retrieved 2026-09-29.
  4. 1 2 Pearl, Mike (2026-09-29). "OpenAI Cancels Release of GPT-6.1 Astra Because It 'Regressed' on Safety". Gizmodo. Retrieved 2026-09-29.
  5. ↑ "OpenAI delays latest model over security concerns, as industry faces new safety pressures". Associated Press. 2026-09-28. Retrieved 2026-09-29.