Hunyuan Hy3 Preview vs Mistral Large 3 675B Instruct
Hunyuan Hy3 Preview (2026) and Mistral Large 3 675B Instruct (2025) are frontier reasoning models from Tencent AI Lab and MistralAI. Hunyuan Hy3 Preview ships a 262k-token context window, while Mistral Large 3 675B Instruct ships a 128k-token context window. On Google-Proof Q&A, Hunyuan Hy3 Preview leads by 43.3 pts. 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 ~658% cheaper at $0.07/1M; pay for Mistral Large 3 675B Instruct only for vision-heavy evaluation.
Decision scorecard
Local evidence first| Signal | Hunyuan Hy3 Preview | Mistral Large 3 675B Instruct |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and provider-routed production | multimodal apps and provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 262k | 128k |
| Cheapest output | $0.26/1M tokens | $1.50/1M tokens |
| Provider routes | 2 tracked | 6 tracked |
| Shared benchmarks | Google-Proof Q&A leader | 1 shared |
Decision tradeoffs
- Hunyuan Hy3 Preview holds a shared-benchmark lead on Google-Proof Q&A, ahead by 43.3 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.
- 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.
- Mistral Large 3 675B Instruct has broader tracked provider coverage for fallback and route flexibility.
- Mistral Large 3 675B Instruct uniquely exposes Vision, Multimodal, and Structured outputs in local model data.
- Local decision data tags Mistral Large 3 675B Instruct 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
Mistral Large 3 675B Instruct
$775
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $657. 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.
- Mistral Large 3 675B Instruct is $1.24/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Reasoning and JSON / Tool use before moving production traffic.
- Mistral Large 3 675B Instruct 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 $1.24/1M 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.
- Hunyuan Hy3 Preview adds Reasoning and JSON / Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-22 | 2025-12-01 |
| Context window | 262k | 128k |
| Parameters | 295B | 675B |
| Architecture | Dense + MoE Hybrid | Decoder Only |
| License | Tencent Hunyuan Community License | Apache 2.0OSI-approved |
| Openness | Open weights | Open source |
| Weights | Available | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: permitted |
| Knowledge cutoff | - | 2024-11 |
Pricing and availability
| Pricing attribute | Hunyuan Hy3 Preview | Mistral Large 3 675B Instruct |
|---|---|---|
| Input price | $0.07/1M tokens | $0.50/1M tokens |
| Output price | $0.26/1M tokens | $1.50/1M tokens |
| Providers |
Capabilities
| Capability | Hunyuan Hy3 Preview | Mistral Large 3 675B Instruct |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | No |
| JSON / Tool use | Yes | No |
| Structured outputs | No | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | Hunyuan Hy3 Preview | Mistral Large 3 675B Instruct |
|---|---|---|
| Google-Proof Q&A | 87.2 | 43.9 |
Continue comparing
- Hunyuan Hy3 Preview vs Mistral Large 2
- Hunyuan Hy3 Preview vs Qwen2-7B-Instruct
- Mistral Large 3 675B Instruct vs Tencent Hunyuan Turbo S
- Hunyuan Hy3 Preview vs o3
- DeepSeek V3 vs Hunyuan Hy3 Preview
- Claude Opus 4.7 vs Hunyuan Hy3 Preview
- Claude Opus 4.6 vs Hunyuan Hy3 Preview
- Claude Sonnet 4.6 vs Hunyuan Hy3 Preview
- Hunyuan Hy3 Preview vs o3-pro
Popular comparisons for Hunyuan Hy3 Preview
Popular comparisons for Mistral Large 3 675B Instruct
Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.