Model Comparison

Hy3 vs o1-previewWhich is better in 2026?

Hy3 significantly outperforms across most benchmarks.

Verdict: Hy3 vs o1-preview — which is better?

Hy3 (by Tencent) and o1-preview (by OpenAI) 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 2 benchmarks (GPQA, SWE-Bench Verified), while o1-preview is better at 0 benchmarks. Hy3 significantly outperforms across most benchmarks.

Choose Hy3 if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026
  • you need open weights you can self-host or fine-tune

Choose o1-preview if…

  • you want predictable pricing at $15.00/M input and $60.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Hy3 outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while o1-preview is better at 0 benchmarks.

Hy3 significantly outperforms across most benchmarks.

Sat Jul 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o1-preview specifies input context (128,000 tokens). Only o1-preview specifies output context (32,768 tokens).

Tencent
Hy3
Input- tokens
Output- tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Sat Jul 18 2026 • llm-stats.com

License

Usage and distribution terms

Hy3 is licensed under Apache 2.0, while o1-preview uses a proprietary license.

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

Hy3

Apache 2.0

Open weights

o1-preview

Proprietary

Closed source

Release Timeline

When each model was launched

Hy3 was released on 2026-07-06, while o1-preview was released on 2024-09-12.

Hy3 is 22 months newer than o1-preview.

Hy3

Jul 6, 2026

1 weeks ago

1.8yr newer
o1-preview

Sep 12, 2024

1.8 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
Has open weights
Higher GPQA score (90.4% vs 73.3%)
Higher SWE-Bench Verified score (78.0% vs 41.3%)
OpenAI
Larger context window (128,000 tokens)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Hy3 and o1-preview side-by-side, then vote on the output you prefer.

Hy3
✓ Preferred
o1-preview
Open in Playground
AI Model Comparison Table
Feature
Tencent
Hy3
OpenAI
o1-preview

FAQ

Common questions about Hy3 vs o1-preview.

Which is better, Hy3 or o1-preview?

Hy3 significantly outperforms across most benchmarks. Hy3 is made by Tencent and o1-preview is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Hy3 compare to o1-preview in benchmarks?

Hy3 scores DeepSearchQA: 91.0%, GPQA: 90.4%, IMO-AnswerBench: 90.0%, BrowseComp: 84.2%, MCP Atlas: 79.1%. o1-preview scores MGSM: 90.8%, MMLU: 90.8%, MATH: 85.5%, GPQA: 73.3%, LiveBench: 52.3%.

What are the context window sizes for Hy3 and o1-preview?

Hy3 supports an unknown number of tokens and o1-preview 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 o1-preview?

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

Who makes Hy3 and o1-preview?

Hy3 is developed by Tencent and o1-preview is developed by OpenAI.

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