The model introduces a new max reasoning effort for deeper single-agent reasoning and an ultra mode that uses subagents to accelerate complex work. OpenAI highlights stronger results on command-line coding workflows, biology workflows, and cybersecurity evaluations while emphasizing a layered safeguard stack.
GPT-5.6 Sol is useful for developers, enterprises, security teams, scientific researchers, and advanced agent builders who need stronger long-context reasoning and tool coordination. Availability is limited during preview, with access and pricing governed by OpenAI's staged rollout.
