Hunyuan Hy3 Preview vs Llama 3 Swallow 70B Instruct
Hunyuan Hy3 Preview (2026) and Llama 3 Swallow 70B Instruct (2024) are frontier reasoning models from Tencent AI Lab and Tokyo Institute of Technology. Hunyuan Hy3 Preview ships a 262k-token context window, while Llama 3 Swallow 70B Instruct ships a 4k-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.
Hunyuan Hy3 Preview fits 66x more tokens; pick it for long-context work and Llama 3 Swallow 70B Instruct for tighter calls.
Decision scorecard
Local evidence first| Signal | Hunyuan Hy3 Preview | Llama 3 Swallow 70B Instruct |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and provider-routed production | general production evaluation |
| Decision fit | Coding, RAG, and Agents | General |
| Context window | 262k | 4k |
| Cheapest output | $0.26/1M tokens | - |
| Provider routes | 2 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- 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 route flexibility.
- Hunyuan Hy3 Preview uniquely exposes Reasoning and JSON / Tool use in local model data.
- Local decision data tags Hunyuan Hy3 Preview for Coding, RAG, and Agents.
- Use Llama 3 Swallow 70B Instruct when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
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
Llama 3 Swallow 70B Instruct
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 Llama 3 Swallow 70B Instruct; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning and JSON / Tool use before moving production traffic.
- No overlapping tracked provider route is sourced for Llama 3 Swallow 70B Instruct and Hunyuan Hy3 Preview; plan for SDK, billing, or endpoint changes.
- Hunyuan Hy3 Preview adds Reasoning and JSON / Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2024-06-01 |
| Context window | 262k | 4k |
| Parameters | 295B | 70B |
| Architecture | Dense + MoE Hybrid | Decoder Only |
| License | Tencent Hunyuan Community License | Llama 2 Community |
| Openness | Open weights | Open weights |
| Weights | Available | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | - | 2023 |
Pricing and availability
| Pricing attribute | Hunyuan Hy3 Preview | Llama 3 Swallow 70B Instruct |
|---|---|---|
| Input price | $0.07/1M tokens | - |
| Output price | $0.26/1M tokens | - |
| Providers |
Capabilities
| Capability | Hunyuan Hy3 Preview | Llama 3 Swallow 70B Instruct |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | No |
| JSON / 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
No shared benchmark scores are currently available for this pair.
Continue comparing
Popular comparisons for Hunyuan Hy3 Preview
Popular comparisons for Llama 3 Swallow 70B Instruct
- Llama 3 Swallow 70B Instruct vs ELYZA Japanese Llama 2 7B
- Llama 3 Swallow 70B Instruct vs ELYZA Japanese Llama 2 13B
- Llama 3 Swallow 70B Instruct vs Bielik 11B v2.6 Instruct
- Llama 3 Swallow 70B Instruct vs Llama 3.3 Nemotron Super 49B v1
- Llama 3 Swallow 70B Instruct vs Llama 3 Taiwan 70B Instruct
- Llama 3 Swallow 70B Instruct vs Qwen3.5-9B
Last reviewed: 2026-06-30. Data sourced from public model cards and provider documentation.