Overview
Tencent Hy3 is the official July 6, 2026 release that follows April's Hy3 Preview. It keeps the same broad technical profile—295 billion total parameters in a mixture-of-experts architecture, 21 billion active parameters, and a 256K-token context window—but Tencent positions this release as more stable and cost-efficient for practical deployments. The main upgrade is therefore operational rather than a new model family: teams evaluating the preview now have a formal current checkpoint with wider product integration.
Hy3 targets reasoning, coding, long-document work, instruction following, and agent workflows. It is particularly relevant to developers who want an open-weight alternative to closed frontier models but still need hosted access through Tencent Cloud. The weights and training ecosystem remain important for organizations that need self-hosting or fine-tuning rather than a chat-only service.
What's New
A formal release after the preview
The preview gave Tencent product teams and external users an early Hy3 checkpoint. The July release replaces that preview as the current entry in the Hy line. Tencent's announcement emphasizes improved post-training quality, stability, and cost efficiency; it does not present Hy3 as a different parameter scale or a longer-context replacement. Existing users should therefore validate production behavior, latency, and API cost on their own workloads rather than assuming a new architecture.
Deeper Tencent product integration
Tencent lists Hy3 as adopted in WorkBuddy/CodeBuddy, Yuanbao, Marvis, ima, and other products. This matters for teams already working inside Tencent's ecosystem: the model is no longer only a downloadable checkpoint or experimental endpoint, but is being used in multiple user-facing and developer-facing surfaces. API availability on Tencent Cloud TokenHub is part of the formal release, while third-party integrations are expected to arrive progressively.
Fast and slow thinking in one MoE model
Hy3 combines fast and slow reasoning behavior in a single MoE model. For practical users, that means one model family can handle low-latency requests and tasks that need more deliberation without switching to a separately branded reasoning checkpoint. The official release retains the 256K context window, making it suitable for long documents, codebases, and agent traces that exceed ordinary chat inputs.
Availability & Access
Hy3 is available through Tencent's product ecosystem and Tencent Cloud TokenHub. Tencent also publishes model materials through its Hy/Hunyuan channels; licensing and hosting terms should be reviewed before commercial deployment. Availability, pricing, and supported regions can vary between Tencent Cloud, self-hosted weights, and third-party providers. Developers should verify the exact model identifier and quota in TokenHub before migrating a production integration.
Pricing & Plans
Tencent Hy offers product access surfaces, open-weight evaluation under the Tencent Hy Community License, and paid hosted API access. Tencent Cloud's Chinese TokenHub pricing page lists the official Hy3 model at CNY 1 per million input tokens, CNY 4 per million output tokens, and CNY 0.25 per million cached-input tokens. Hy3 Preview remains separately listed with length-tiered pricing, so do not reuse preview prices for the official Hy3 release.
Best For
- Teams already using Tencent Cloud or Tencent productivity products that need a current supported Hy model.
- Developers testing open-weight reasoning and coding models with a hosted API fallback.
- Organizations with long-document, codebase, or agent-trace workloads that fit within 256K tokens.
- ML teams that need fine-tuning options and can review Tencent's community license.
FAQ
Is Hy3 different from Hy3 Preview?
Hy3 is the official July 2026 release after the April preview. Tencent describes better stability, cost efficiency, and product integration while retaining the 295B total/21B active MoE design and 256K context window.
Where can I access Hy3?
Tencent lists Hy3 in several products and through Tencent Cloud TokenHub. Self-hosting and hosted access have different setup, region, and licensing requirements.
Is Hy3 open source?
Hy3 is open weight under the Tencent Hy Community License. That is not the same as an OSI-approved open-source license, so commercial teams should review the terms before deployment.
What does Hy3 cost?
Hosted TokenHub pricing is token-based and varies by input-length tier and output. Check Tencent Cloud's current pricing page because exchange rates, free periods, and tiers can change.
