Nous Research has added GPT-5.6 support to its Hermes Agent, available now through the Nous Portal.
Hermes Agent was not built to be a simple chatbot wrapper. Launched in February 2026, it was designed around persistent memory and skill generation, meaning the system can carry context across sessions and build new capabilities as it operates.
What GPT-5.6 actually brings to the table
OpenAI’s GPT-5.6 family entered limited preview on June 26, 2026, and it is not a single model. It comes in three variants: Sol, the flagship; Terra, the balanced middle option; and Luna, the fast and cost-efficient tier.
Hermes Agent’s Tool Gateway feature allows it to route tasks to external services, and its native desktop applications mean users are not locked into a browser-based workflow. Pairing those features with a model family that scales from cheap-and-fast to expensive-and-thorough lets developers match compute spend to task complexity.
