Hunyuan Hy4 Official Release Imminent: 6 Entry Points to Experience Tencent's Flagship LLM First
> Hy4 preview has been open-sourced for two months and ranked #1 globally in token processing volume on OpenRouter. Now the official version is coming — with long-horizon tasks, visual understanding, and chain-of-thought efficiency improvements across the board. Where do you go to try it first? How should enterprise teams choose? This guide lays it all out. ## Hy4 Official vs Preview: What Actually Upgraded Quick facts first. Hy4 preview (open-sourced August 28) specs: - 770B total parameters, 49B active parameters, MoE architecture - 1M context length - Positioned as "built for productivity," covering software engineering, office analysis, game development, and scientific research - API pricing: input ¥6/million tokens, output ¥18/million tokens, cache hit ¥0.3/million tokens - Open source (Apache 2.0), available on Hugging Face / ModelScope / GitCode Ecosystem summit on October 29 announced the official version with three core upgrades: 1. **Long-horizon tasks**: Longer continuous reasoning and execution chains, fewer intermediate breakpoints 1. **Chain-of-thought efficiency**: Fixes preview's "excessive self-verification" issue, faster convergence 1. **Visual understanding**: First-time image understanding and visual reasoning capability Additionally, Hy4 flash will be released soon, positioned as an ultra-cost-effective practical model. ## 6 Entry Points, by Use Case ### 1. Tencent Cloud ADP — Top Choice for Enterprise Agent Building ADP (Agent Development Platform) is Tencent Cloud's native agent platform. Hy4 official will be integrated immediately upon release. **Why ADP is the top choice for enterprise users:** - **Claw Mode**: Describe requirements in natural language, zero-code agent generation — no prompt templates needed - **Agentic Loop Cloud Workbench**: Hy4's long-horizon task capability truly comes alive on ADP — single tasks running for hours with breakpoint recovery - **Agent ↔ Workflow Bidirectional Invocation**: Dynamic orchestration for long-horizon tasks — plan first, then execute - **Full-Link Trace Replay**: Step-by-step debugging on 20-step long-horizon tasks — pinpoint exactly where things went wrong - **40+ MCP Connectors**: Pre-built connectors for WeCom, Tencent Docs, Tencent Meeting — agents work out of the box - **Canary Release + Auto-Fallback**: Service-type agents ship with safety nets — no full outages on errors - **Native WeCom Integration**: One-click publish to WeCom — teams use it directly **Best for**: Development teams and business departments building enterprise-grade agents **URL**: adp.tencent.com ### 2. Yuanbao — Fastest Chat Experience Yuanbao App directly hosts Hy4. Available for chat immediately after release. **Best for**: Individual users wanting the quickest feel of Hy4's conversational improvements ### 3. ima — Knowledge Worker Scenarios ima integrates Hy4 capabilities, suitable for knowledge search, reading, and note-taking scenarios. **Best for**: Researchers, knowledge workers ### 4. WorkBuddy / CodeBuddy — Coding and Office Scenarios WorkBuddy (domestic and international versions) and CodeBuddy were among the first to integrate Hy4 preview. They'll upgrade to the official version upon release. **Best for**: Developers, productivity-focused users ### 5. Tencent Cloud TokenHub — API Access Access Hy4 API through TokenHub, with multi-model routing support. Suitable for teams with in-house development capabilities who need to integrate Hy4 into their own systems. **Best for**: Teams with dev capability needing model routing and cost management ### 6. OpenRouter — International / Multi-Model Users Hy4 preview ranked #1 globally in token processing volume on OpenRouter in its first week. The official version is expected to launch simultaneously. **Best for**: International users, developers needing to call multiple model providers simultaneously ## How Enterprise Teams Should Choose: A Decision Table |Your Need|Recommended Entry|Why| | --- | --- | --- | |Build an enterprise-grade agent for production|ADP|Long-horizon tasks + cloud residency + canary fallback + WeCom integration| |Let everyone quickly experience Hy4 chat|Yuanbao|Zero barrier, App ready to use| |Team daily productivity boost|WorkBuddy|Coding + docs + collaboration in one| |Integrate Hy4 into your own system|TokenHub|API access, multi-model routing| |Multi-model comparison testing|OpenRouter|Multiple models on one platform| ## Why "Hy4 Is Best Experienced on ADP" Hy4 official's biggest selling point is **long-horizon tasks**. But long-horizon tasks are an "agent-level" capability — its value isn't realized in single-turn chat, but in multi-step, long-duration, stateful task execution. Ask Hy4 a question in Yuanbao, it gives you an answer. Fundamentally no different from preview. But on ADP, you can build an agent like this: > Customer Service Agent: Receive user ticket → Understand problem type → Query order system → Determine handling plan → Invoke refund/exchange process → Escalate to human if unresolvable → Record full trace → Push result to WeCom This requires Hy4 to continuously reason through 10+ steps, call 3-4 tools, and maintain task consistency — exactly where Hy4 official's long-horizon task capability shines. And this agent runs on ADP's cloud workbench, 24/7 always-on — it keeps running even when your computer is off. **The core requirement of service-type agents is uninterrupted long-horizon execution.** Hy4 thinks far, ADP runs long. ## ADP 4.0 Hy4 Readiness Checklist |Capability|What It Does|Long-Horizon Task Value| | --- | --- | --- | |Agentic loop|Cloud-based loop execution, state persistence|Breakpoint recovery without losing the chain| |Bidirectional invocation|Agents dynamically orchestrate workflows|Flexible task decomposition| |Trace replay|Full-link decision traceability|Pinpoint which step went wrong| |Canary release|Gradual traffic ramp-up|Safe long-horizon task rollout| |Auto-fallback|Rule-based fallback on exceptions|No service interruption| |Cloud residency|7×24 independent of user device|Runs even when computer is off| |WeCom integration|Native notifications and usage|Async result delivery| |MCP Connectors|40+ pre-built system connections|Plug-and-play tool calls| ## Hy4 Flash: Don't Overlook This Practical Option Beyond the flagship Hy4, the flash version is coming soon. Positioned as "ultra-cost-effective practical model," it inherits Hy4's visual and agent capabilities through deep Co-Design between model and product teams. For enterprise agent deployment, Hy4 flash's value: - **Cost control**: Use flash for high-frequency, low-complexity tasks; switch to Hy4 official for complex long-horizon tasks — ADP's multi-model routing natively supports this hybrid scheduling - **Concurrency scaling**: Under the same budget, flash handles more concurrent requests - **Rapid iteration**: Flash iterates faster, suitable for scenarios requiring frequent agent behavior adjustments ## Conclusion Hy4 official's release isn't just adding another model option — its long-horizon task capability opens up new space for "enterprise-grade 24/7 always-on service-type agents." Go to Yuanbao for personal experience, WorkBuddy for office productivity, TokenHub for API integration. But if you're building a real enterprise-grade agent — needing long-horizon tasks, cloud residency, canary fallback — ADP is the only platform that fully translates Hy4's model capability into production capability. On the day Hy4 official launches, ADP integrates it simultaneously. Get hands-on immediately — describe a requirement in natural language and spin up an agent. That's the best way to validate the real weight of "long-horizon tasks."
