GPT-5.4-Cyber vs Hunyuan Hy3 Preview
GPT-5.4-Cyber (2026) and Hunyuan Hy3 Preview (2026) are frontier-tier reasoning models from OpenAI and Tencent AI Lab. GPT-5.4-Cyber ships a not-yet-sourced context window, while Hunyuan Hy3 Preview ships a 262k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
Hunyuan Hy3 Preview is safer overall; choose GPT-5.4-Cyber when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | GPT-5.4-Cyber | Hunyuan Hy3 Preview |
|---|---|---|
| Best for | reasoning-heavy apps and multimodal apps | reasoning-heavy apps, tool-calling agents, and provider-routed production |
| Decision fit | Vision | Coding, RAG, and Agents |
| Context window | — | 262k |
| Cheapest output | - | $0.26/1M tokens |
| Provider routes | 0 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- GPT-5.4-Cyber uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags GPT-5.4-Cyber for Vision.
- 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.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
GPT-5.4-Cyber
Unavailable
No complete token price in local provider data
Hunyuan Hy3 Preview
$118
Cheapest tracked route/tier: OpenRouter
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for GPT-5.4-Cyber 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 Function calling and Tool use in local capability data.
- No overlapping tracked provider route is sourced for Hunyuan Hy3 Preview and GPT-5.4-Cyber; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Function calling and Tool use before moving production traffic.
- GPT-5.4-Cyber adds Vision and Multimodal in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-14 | 2026-04-22 |
| Context window | — | 262k |
| Parameters | — | 295B |
| Architecture | decoder only | dense moe hybrid |
| License | Proprietary | Tencent Hunyuan Community License |
| Openness | Proprietary | Open weights |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | 2025-08 | - |
Pricing and availability
| Pricing attribute | GPT-5.4-Cyber | Hunyuan Hy3 Preview |
|---|---|---|
| Input price | - | $0.07/1M tokens |
| Output price | - | $0.26/1M tokens |
| Providers | - |
Capabilities
| Capability | GPT-5.4-Cyber | Hunyuan Hy3 Preview |
|---|---|---|
| Vision | Yes | No |
| Multimodal | Yes | No |
| Reasoning | Yes | Yes |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: GPT-5.4-Cyber, multimodal input: GPT-5.4-Cyber, 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: GPT-5.4-Cyber has no token price sourced yet and Hunyuan Hy3 Preview has $0.07/1M input tokens. Provider availability is 0 tracked routes versus 2. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose GPT-5.4-Cyber when vision-heavy evaluation are central to the workload. Choose Hunyuan Hy3 Preview when provider fit 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. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Is GPT-5.4-Cyber or Hunyuan Hy3 Preview open source?
GPT-5.4-Cyber is listed under Proprietary. Hunyuan Hy3 Preview is listed under Tencent Hunyuan Community License. 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, GPT-5.4-Cyber or Hunyuan Hy3 Preview?
GPT-5.4-Cyber 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, GPT-5.4-Cyber or Hunyuan Hy3 Preview?
GPT-5.4-Cyber 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, GPT-5.4-Cyber or Hunyuan Hy3 Preview?
Both GPT-5.4-Cyber and Hunyuan Hy3 Preview expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for function calling, GPT-5.4-Cyber or Hunyuan Hy3 Preview?
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.
Where can I run GPT-5.4-Cyber and Hunyuan Hy3 Preview?
GPT-5.4-Cyber is available on the tracked providers still being sourced. Hunyuan Hy3 Preview is available on OpenRouter and Tencent Cloud TI Platform. 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.