Hunyuan Hy3 Preview vs Qwen3.5-4B
Hunyuan Hy3 Preview (2026) and Qwen3.5-4B (2026) are frontier reasoning models from Tencent AI Lab and Alibaba. Hunyuan Hy3 Preview ships a 262k-token context window, while Qwen3.5-4B ships a 262k-token context window. On Google-Proof Q&A, Hunyuan Hy3 Preview leads by 11 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Hunyuan Hy3 Preview is safer overall; choose Qwen3.5-4B when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Hunyuan Hy3 Preview | Qwen3.5-4B |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and provider-routed production | multimodal apps |
| Decision fit | Coding, RAG, and Agents | Coding, Agents, and Long context |
| Context window | 262k | 262k |
| Cheapest output | $0.26/1M tokens | - |
| Provider routes | 2 tracked | 0 tracked |
| Shared benchmarks | Google-Proof Q&A leader | 1 rows |
Decision tradeoffs
- Hunyuan Hy3 Preview holds a shared-benchmark lead on Google-Proof Q&A, ahead by 11 points.
- Hunyuan Hy3 Preview has broader tracked provider coverage for fallback and procurement flexibility.
- Hunyuan Hy3 Preview uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags Hunyuan Hy3 Preview for Coding, RAG, and Agents.
- Qwen3.5-4B uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags Qwen3.5-4B for Coding, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Hunyuan Hy3 Preview
$118
Cheapest tracked route/tier: OpenRouter
Qwen3.5-4B
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Hunyuan Hy3 Preview and Qwen3.5-4B; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
- Qwen3.5-4B adds Vision and Multimodal in local capability data.
- No overlapping tracked provider route is sourced for Qwen3.5-4B and Hunyuan Hy3 Preview; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Hunyuan Hy3 Preview adds Reasoning, Function calling, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2026-03-02 |
| Context window | 262k | 262k |
| Parameters | 295B | 4B |
| Architecture | dense moe hybrid | - |
| License | Tencent Hunyuan Community License | Apache 2.0(OSI) |
| Openness | Open weights | Open source |
| Commercial use | Commercial use with conditions | Commercial use allowed |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | Hunyuan Hy3 Preview | Qwen3.5-4B |
|---|---|---|
| Input price | $0.07/1M tokens | - |
| Output price | $0.26/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Hunyuan Hy3 Preview | Qwen3.5-4B |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Hunyuan Hy3 Preview | Qwen3.5-4B |
|---|---|---|
| Google-Proof Q&A | 87.2 | 76.2 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has Hunyuan Hy3 Preview at 87.2 and Qwen3.5-4B at 76.2, with Hunyuan Hy3 Preview ahead by 11 points. The largest visible gap is 11 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on vision: Qwen3.5-4B, multimodal input: Qwen3.5-4B, reasoning mode: Hunyuan Hy3 Preview, function calling: Hunyuan Hy3 Preview, and tool use: Hunyuan Hy3 Preview. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
Pricing coverage is uneven: Hunyuan Hy3 Preview has $0.07/1M input tokens and Qwen3.5-4B has no token price sourced yet. Provider availability is 2 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Hunyuan Hy3 Preview when reasoning depth and broader provider choice are central to the workload. Choose Qwen3.5-4B when vision-heavy evaluation are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Hunyuan Hy3 Preview or Qwen3.5-4B?
Hunyuan Hy3 Preview supports 262k tokens, while Qwen3.5-4B supports 262k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Hunyuan Hy3 Preview or Qwen3.5-4B open source?
Hunyuan Hy3 Preview is listed under Tencent Hunyuan Community License. Qwen3.5-4B is listed under Apache 2.0. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Hunyuan Hy3 Preview or Qwen3.5-4B?
Qwen3.5-4B has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, Hunyuan Hy3 Preview or Qwen3.5-4B?
Qwen3.5-4B has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for reasoning mode, Hunyuan Hy3 Preview or Qwen3.5-4B?
Hunyuan Hy3 Preview has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Hunyuan Hy3 Preview and Qwen3.5-4B?
Hunyuan Hy3 Preview is available on OpenRouter and Tencent Cloud TI Platform. Qwen3.5-4B is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-07. Data sourced from public model cards and provider documentation.