Model Comparison

Hy3 vs Llama 3.1 405B InstructWhich is better in 2026?

Hy3 significantly outperforms across most benchmarks.

Verdict: Hy3 vs Llama 3.1 405B Instruct — which is better?

Hy3 (by Tencent) and Llama 3.1 405B Instruct (by Meta) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Hy3 outperforms in 1 benchmarks (GPQA), while Llama 3.1 405B Instruct is better at 0 benchmarks. Hy3 significantly outperforms across most benchmarks.

Choose Hy3 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026

Choose Llama 3.1 405B Instruct if…

  • you want predictable pricing at $0.89/M input and $0.89/M output

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Hy3 outperforms in 1 benchmarks (GPQA), while Llama 3.1 405B Instruct is better at 0 benchmarks.

Hy3 significantly outperforms across most benchmarks.

Mon Jul 20 2026 • llm-stats.com

Arena Performance

Human preference votes

Model Size

Parameter count comparison

110.0B diff

Llama 3.1 405B Instruct has 110.0B more parameters than Hy3, making it 37.3% larger.

Tencent
Hy3
295.0Bparameters
Meta
Llama 3.1 405B Instruct
405.0Bparameters
295.0B
Hy3
405.0B
Llama 3.1 405B Instruct

Context Window

Maximum input and output token capacity

Only Llama 3.1 405B Instruct specifies input context (128,000 tokens). Only Llama 3.1 405B Instruct specifies output context (128,000 tokens).

Tencent
Hy3
Input- tokens
Output- tokens
Meta
Llama 3.1 405B Instruct
Input128,000 tokens
Output128,000 tokens
Mon Jul 20 2026 • llm-stats.com

License

Usage and distribution terms

Hy3 is licensed under Apache 2.0, while Llama 3.1 405B Instruct uses Llama 3.1 Community License.

License differences may affect how you can use these models in commercial or open-source projects.

Hy3

Apache 2.0

Open weights

Llama 3.1 405B Instruct

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Hy3 was released on 2026-07-06, while Llama 3.1 405B Instruct was released on 2024-07-23.

Hy3 is 24 months newer than Llama 3.1 405B Instruct.

Hy3

Jul 6, 2026

2 weeks ago

2.0yr newer
Llama 3.1 405B Instruct

Jul 23, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Tencent
Higher GPQA score (90.4% vs 50.7%)
Meta
Larger context window (128,000 tokens)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Hy3 and Llama 3.1 405B Instruct side-by-side, then vote on the output you prefer.

Hy3
✓ Preferred
Llama 3.1 405B Instruct
Open in Playground
AI Model Comparison Table
Feature
Tencent
Hy3
Meta
Llama 3.1 405B Instruct

FAQ

Common questions about Hy3 vs Llama 3.1 405B Instruct.

Which is better, Hy3 or Llama 3.1 405B Instruct?

Hy3 significantly outperforms across most benchmarks. Hy3 is made by Tencent and Llama 3.1 405B Instruct is made by Meta. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Hy3 compare to Llama 3.1 405B Instruct in benchmarks?

Hy3 scores DeepSearchQA: 91.0%, GPQA: 90.4%, IMO-AnswerBench: 90.0%, BrowseComp: 84.2%, MCP Atlas: 79.1%. Llama 3.1 405B Instruct scores ARC-C: 96.9%, GSM8k: 96.8%, API-Bank: 92.0%, Multilingual MGSM (CoT): 91.6%, HumanEval: 89.0%.

What are the context window sizes for Hy3 and Llama 3.1 405B Instruct?

Hy3 supports an unknown number of tokens and Llama 3.1 405B Instruct supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Hy3 and Llama 3.1 405B Instruct?

Key differences include licensing (Apache 2.0 vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy3 and Llama 3.1 405B Instruct?

Hy3 is developed by Tencent and Llama 3.1 405B Instruct is developed by Meta.

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