Nous Research Adds Tencent Hy3 for Reliable and Cost-Effective Agentic Workflows

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Nous Research integrated Tencent's new Hy3 model into its Portal, offering free access for the next two weeks. The model is optimized for agentic workflows, prioritizing tool-calling reliability and reasoning for complex, multi-step tasks.

Nous Research, an open-source AI lab known for the Hermes model family, added Tencent's Hy3 model to its unified subscription platform. Hy3 uses a Mixture-of-Experts (MoE) architecture (an architecture activating only a fraction of parameters per request) to balance high-scale reasoning with inference efficiency.

This integration targets the growing demand for agentic models—systems that autonomously plan and use tools—that prioritize tool-calling reliability and reasoning for multi-step tasks. By focusing on "intelligence density," the model aims to compete with frontier systems while maintaining cost-efficiency.

You can access Hy3 for free on the Nous Portal for the next 14 days. The platform uses Nous Portal's credit management to provide a single API key for over 300 models, including Step 3.7 Flash and credits for Hermes Agent v0.18.0 tool usage.

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Hy3, the new 295B MoE model from @TencentHunyuan, is now free in Nous Portal for the next two weeks! It is focused on cost-effective agentic use, and particularly strong on coding, tool-calling reliability, reasoning, and 256K long-context tasks. https://t.co/2uiUhfas0P

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Still wondering? A few quick answers below.

Hy3 is a large-scale Mixture-of-Experts model featuring 295 billion total parameters. It is designed for high-performance reasoning and agentic tasks, meaning it is optimized to plan and execute multi-step actions autonomously. The model uses an efficient architecture that only activates 21 billion parameters during each forward pass to maintain cost-effectiveness.

You can access the Hy3 model for free through the Nous Portal for a limited two-week period starting July 6, 2026. The portal is a unified platform that provides access to hundreds of different AI models and bundled tool credits under a single subscription, allowing developers to test the model for coding and tool-calling tasks.

The model is specifically optimized for agentic use cases, which require high reliability in tool-calling and complex reasoning. It supports a long-context window of 256K tokens, allowing it to process and remember large amounts of information in a single session. These features make it particularly strong for autonomous coding and sophisticated data analysis workflows.

Yes, Tencent Hunyuan specifically focused on coding performance and tool-calling reliability when developing Hy3. Because it is an agentic-focused model, it is built to handle the logic required to write, debug, and iterate on code across multiple steps while interacting with external software tools and APIs with high precision.

The Nous Portal is a management platform for AI models and agents that offers a unified billing system and API access. It integrates the Hy3 model alongside over 300 other frontier models. Users can subscribe to different tiers to receive monthly credits, which can be used to run Hy3 or other models within the Hermes Agent ecosystem.

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