Tencent Hy3 Preview vs Together AI - Llama 3 8B Lite
Tencent Hy3 Preview (2026) and Together AI - Llama 3 8B Lite (2025) are frontier reasoning models from Tencent AI Lab and AI at Meta. Tencent Hy3 Preview ships a 262K-token context window, while Together AI - Llama 3 8B Lite ships a 8K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Tencent Hy3 Preview fits 32x more tokens; pick it for long-context work and Together AI - Llama 3 8B Lite for tighter calls.
Specs
| Released | 2026-04-22 | 2025-07-15 |
| Context window | 262K | 8K |
| Parameters | 295B | 8B |
| Architecture | dense moe hybrid | decoder only |
| License | Proprietary | Open Source |
| Knowledge cutoff | - | 2024-03 |
Pricing and availability
| Tencent Hy3 Preview | Together AI - Llama 3 8B Lite | |
|---|---|---|
| Input price | - | $0.1/1M tokens |
| Output price | - | $0.1/1M tokens |
| Providers |
Capabilities
| Tencent Hy3 Preview | Together AI - Llama 3 8B Lite | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on reasoning mode: Tencent Hy3 Preview and structured outputs: Together AI - Llama 3 8B Lite. Both models share 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.
Pricing coverage is uneven: Tencent Hy3 Preview has no token price sourced yet and Together AI - Llama 3 8B Lite has $0.1/1M input tokens. Provider availability is 1 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Tencent Hy3 Preview when reasoning depth and larger context windows are central to the workload. Choose Together AI - Llama 3 8B Lite when provider fit 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.
FAQ
Which has a larger context window, Tencent Hy3 Preview or Together AI - Llama 3 8B Lite?
Tencent Hy3 Preview supports 262K tokens, while Together AI - Llama 3 8B Lite supports 8K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is Tencent Hy3 Preview or Together AI - Llama 3 8B Lite open source?
Tencent Hy3 Preview is listed under Proprietary. Together AI - Llama 3 8B Lite is listed under Open Source. 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, Tencent Hy3 Preview or Together AI - Llama 3 8B Lite?
Tencent 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.
Which is better for function calling, Tencent Hy3 Preview or Together AI - Llama 3 8B Lite?
Both Tencent Hy3 Preview and Together AI - Llama 3 8B Lite expose function calling. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for tool use, Tencent Hy3 Preview or Together AI - Llama 3 8B Lite?
Both Tencent Hy3 Preview and Together AI - Llama 3 8B Lite expose tool use. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Tencent Hy3 Preview and Together AI - Llama 3 8B Lite?
Tencent Hy3 Preview is available on OpenRouter. Together AI - Llama 3 8B Lite is available on Together AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-27. Data sourced from public model cards and provider documentation.