Hunyuan Hy3 Preview vs Phi-4 Mini Reasoning
Hunyuan Hy3 Preview (2026) and Phi-4 Mini Reasoning (2026) are frontier-tier reasoning models from Tencent AI Lab and Microsoft Research. Hunyuan Hy3 Preview ships a 262k-token context window, while Phi-4 Mini Reasoning ships a 128k-token context window. On Google-Proof Q&A, Hunyuan Hy3 Preview leads by 35.2 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Phi-4 Mini Reasoning is safer overall; choose Hunyuan Hy3 Preview when long-context analysis matters.
Decision scorecard
Local evidence first| Signal | Hunyuan Hy3 Preview | Phi-4 Mini Reasoning |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and provider-routed production | reasoning-heavy apps |
| Decision fit | Coding, RAG, and Agents | Long context |
| Context window | 262k | 128k |
| 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 35.2 points.
- Hunyuan Hy3 Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Hunyuan Hy3 Preview has broader tracked provider coverage for fallback and procurement flexibility.
- Hunyuan Hy3 Preview uniquely exposes Function calling and Tool use in local model data.
- Local decision data tags Hunyuan Hy3 Preview for Coding, RAG, and Agents.
- Local decision data tags Phi-4 Mini Reasoning for 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
Phi-4 Mini Reasoning
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 Phi-4 Mini Reasoning; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling and Tool use before moving production traffic.
- No overlapping tracked provider route is sourced for Phi-4 Mini Reasoning and Hunyuan Hy3 Preview; plan for SDK, billing, or endpoint changes.
- Hunyuan Hy3 Preview adds Function calling and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2026-05-16 |
| Context window | 262k | 128k |
| Parameters | 295B | 3.8B |
| Architecture | dense moe hybrid | - |
| License | Tencent Hunyuan Community License | MIT(OSI) |
| Openness | Open weights | Open source |
| Commercial use | Commercial use with conditions | Commercial use allowed |
| Knowledge cutoff | - | 2025-02 |
Pricing and availability
| Pricing attribute | Hunyuan Hy3 Preview | Phi-4 Mini Reasoning |
|---|---|---|
| Input price | $0.07/1M tokens | - |
| Output price | $0.26/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Hunyuan Hy3 Preview | Phi-4 Mini Reasoning |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | Yes |
| 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 | Phi-4 Mini Reasoning |
|---|---|---|
| Google-Proof Q&A | 87.2 | 52.0 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has Hunyuan Hy3 Preview at 87.2 and Phi-4 Mini Reasoning at 52, with Hunyuan Hy3 Preview ahead by 35.2 points. The largest visible gap is 35.2 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 function calling: Hunyuan Hy3 Preview and tool use: Hunyuan Hy3 Preview. Both models share reasoning mode, 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 Phi-4 Mini Reasoning 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 long-context analysis, larger context windows, and broader provider choice are central to the workload. Choose Phi-4 Mini Reasoning when provider fit 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 Phi-4 Mini Reasoning?
Hunyuan Hy3 Preview supports 262k tokens, while Phi-4 Mini Reasoning supports 128k 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 Phi-4 Mini Reasoning open source?
Hunyuan Hy3 Preview is listed under Tencent Hunyuan Community License. Phi-4 Mini Reasoning is listed under MIT. 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 reasoning mode, Hunyuan Hy3 Preview or Phi-4 Mini Reasoning?
Both Hunyuan Hy3 Preview and Phi-4 Mini Reasoning expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for function calling, Hunyuan Hy3 Preview or Phi-4 Mini Reasoning?
Hunyuan Hy3 Preview has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for tool use, Hunyuan Hy3 Preview or Phi-4 Mini Reasoning?
Hunyuan Hy3 Preview has the clearer documented tool use signal in this comparison. If tool use 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 Phi-4 Mini Reasoning?
Hunyuan Hy3 Preview is available on OpenRouter and Tencent Cloud TI Platform. Phi-4 Mini Reasoning 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.