GPT-5.6: Frontier intelligence that scales with your ambition
More intelligence from every token, stronger performance per dollar, and more capability on demand for your hardest work.
GPT-5.5: Capabilities and Reactions
The system card for GPT-5.5 mostly told us what we expected.
Model Release Notes | OpenAI Help Center
We’re beginning the rollout of GPT-5.6 Sol in ChatGPT, our flagship reasoning model for complex work across coding, research, science, cybersecurity, computer use, and design.GPT-5.6 Sol is rolling out to eligible paid ChatGPT plans. Free, Go, and logged-out users are not included. Availability may vary during rollout, and managed-workspace access can depend on administrator settings. Availability for other GPT-5.6 family models varies by product and plan; check the model picker or current rate card in the product you use.
Where the goblins came from
How goblin outputs spread in AI models: timeline, root cause, and fixes behind personality-driven quirks in GPT-5 behavior.
Early science acceleration experiments with GPT-5
AI models like GPT-5 are an increasingly valuable tool for scientists, but many remain unaware of the capabilities of frontier AI. We present a collection of short case studies in which GPT-5 produced new, concrete steps in ongoing research across mathematics, physics, astronomy, computer science, biology, and materials science. In these examples, the authors highlight how AI accelerated their work, and where it fell short; where expert time was saved, and where human input was still key. We document the interactions of the human authors with GPT-5, as guiding examples of fruitful collaboration with AI. Of note, this paper includes four new results in mathematics (carefully verified by the human authors), underscoring how GPT-5 can help human mathematicians settle previously unsolved problems. These contributions are modest in scope but profound in implication, given the rate at which frontier AI is progressing.
GPT-5: The Reverse DeepSeek Moment
Everyone agrees that the release of GPT-5 was botched. Everyone can also agree that the direct jump from GPT-4o and o3 to GPT-5 was not of similar size to the jump from GPT-3 to GPT-4, that it was …
Mo on Twitter / X
Deciphering OpenAI's misleading claim that GPT-5.2 made a new discovery in theoretical physics. https://t.co/Lysx647aKr pic.twitter.com/xNj08evmXx— Mo (@atmoio) February 14, 2026
GPT-5.6 Sol Model | OpenAI API
GPT-5.6 Sol is the frontier model in the GPT-5.6 family. It roughly corresponds to the unsuffixed model tier used in earlier GPT-5 families. The gpt-5.6 alias routes requests to GPT-5.6 Sol.
🔬Doing Vibe Physics — Alex Lupsasca, OpenAI
The full story of how GPT‑5.x derived new results in theoretical physics and quantum gravity.
GPT is the Heroku of AI - Ken Kantzer's Blog
I read a comment on HN that sparked this article: GPT is kind of like DevOps from the early 2000s. Here’s the hot take: I don’t see the primary value of GPT being in its ability to help me develop novel use cases or features – at least not right now. The primary value is […]
Previewing GPT-5.6 Sol: a next-generation model
OpenAI previews GPT-5.6 Sol, a next-generation model with stronger capabilities in coding, science, and cybersecurity, paired with its most advanced safety stack.
