Hunyuan Hy3 Preview vs o3-pro
Hunyuan Hy3 Preview (2026) and o3-pro (2025) are frontier-tier reasoning models from Tencent AI Lab and OpenAI. Hunyuan Hy3 Preview ships a 262k-token context window, while o3-pro ships a 200k-token context window. On Google-Proof Q&A, Hunyuan Hy3 Preview leads by 3.2 pts. On pricing, Hunyuan Hy3 Preview costs $0.07/1M input tokens versus $20/1M for the alternative. 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 ~30203% cheaper at $0.07/1M; pay for o3-pro only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Hunyuan Hy3 Preview | o3-pro |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and provider-routed production | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 262k | 200k |
| Cheapest output | $0.26/1M tokens | $80/1M tokens |
| Provider routes | 2 tracked | 3 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 3.2 points.
- Hunyuan Hy3 Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Hunyuan Hy3 Preview has the lower cheapest tracked output price at $0.26/1M tokens.
- Local decision data tags Hunyuan Hy3 Preview for Coding, RAG, and Agents.
- o3-pro has broader tracked provider coverage for fallback and procurement flexibility.
- o3-pro uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
- Local decision data tags o3-pro for Coding, RAG, and Agents.
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
o3-pro
$36,000
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $35,882. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- o3-pro is $79.74/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- o3-pro adds Vision, Multimodal, and Structured outputs in local capability data.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Hunyuan Hy3 Preview is $79.74/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2025-06-10 |
| Context window | 262k | 200k |
| Parameters | 295B | — |
| Architecture | dense moe hybrid | decoder only |
| License | Tencent Hunyuan Community License | Proprietary |
| Openness | Open weights | Proprietary |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | - | 2025-08 |
Pricing and availability
| Pricing attribute | Hunyuan Hy3 Preview | o3-pro |
|---|---|---|
| Input price | $0.07/1M tokens | $20/1M tokens |
| Output price | $0.26/1M tokens | $80/1M tokens |
| Providers |
Capabilities
| Capability | Hunyuan Hy3 Preview | o3-pro |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | No | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Hunyuan Hy3 Preview | o3-pro |
|---|---|---|
| Google-Proof Q&A | 87.2 | 84.0 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has Hunyuan Hy3 Preview at 87.2 and o3-pro at 84, with Hunyuan Hy3 Preview ahead by 3.2 points. The largest visible gap is 3.2 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 vision: o3-pro, multimodal input: o3-pro, structured outputs: o3-pro, and code execution: o3-pro. Both models share reasoning mode, function calling, and tool use, 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.
For cost, Hunyuan Hy3 Preview lists $0.07/1M input and $0.26/1M output tokens on the cheapest tracked provider, while o3-pro lists $20/1M input and $80/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Hunyuan Hy3 Preview lower by about $37.88 per million blended tokens. Availability is 2 providers versus 3, so concentration risk also matters.
Choose Hunyuan Hy3 Preview when long-context analysis, larger context windows, and lower input-token cost are central to the workload. Choose o3-pro when coding workflow support and broader provider choice 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 o3-pro?
Hunyuan Hy3 Preview supports 262k tokens, while o3-pro supports 200k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Hunyuan Hy3 Preview or o3-pro?
Hunyuan Hy3 Preview is cheaper on tracked token pricing. Hunyuan Hy3 Preview costs $0.07/1M input and $0.26/1M output tokens. o3-pro costs $20/1M input and $80/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Hunyuan Hy3 Preview or o3-pro open source?
Hunyuan Hy3 Preview is listed under Tencent Hunyuan Community License. o3-pro is listed under Proprietary. 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 o3-pro?
o3-pro 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 o3-pro?
o3-pro 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.
Where can I run Hunyuan Hy3 Preview and o3-pro?
Hunyuan Hy3 Preview is available on OpenRouter and Tencent Cloud TI Platform. o3-pro is available on OpenRouter, OpenAI API, and Vercel AI Gateway. 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.