Model Comparison

Hy3 vs o3Which is better in 2026?

Hy3 significantly outperforms across most benchmarks.

Verdict: Hy3 vs o3 — which is better?

Hy3 (by Tencent) and o3 (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 3 benchmarks (BrowseComp, GPQA, SWE-Bench Verified), while o3 is better at 0 benchmarks. Hy3 significantly outperforms across most benchmarks.

Choose Hy3 if…

  • you want the strongest raw capability — it leads on 3 of 3 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 o3 if…

  • you want predictable pricing at $2.00/M input and $8.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Hy3 outperforms in 3 benchmarks (BrowseComp, GPQA, SWE-Bench Verified), while o3 is better at 0 benchmarks.

Hy3 significantly outperforms across most benchmarks.

Tue Jul 21 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o3 specifies input context (200,000 tokens). Only o3 specifies output context (100,000 tokens).

Tencent
Hy3
Input- tokens
Output- tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

o3 supports multimodal inputs, whereas Hy3 does not.

o3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Hy3

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

Hy3 is licensed under Apache 2.0, while o3 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

o3

Proprietary

Closed source

Release Timeline

When each model was launched

Hy3 was released on 2026-07-06, while o3 was released on 2025-04-16.

Hy3 is 15 months newer than o3.

Hy3

Jul 6, 2026

2 weeks ago

1.2yr newer
o3

Apr 16, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

o3 has a documented knowledge cutoff of 2024-05-31, while Hy3's cutoff date is not specified.

We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without Hy3's cutoff date.

Hy3

—

o3

May 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Tencent
Has open weights
Higher BrowseComp score (84.2% vs 49.7%)
Higher GPQA score (90.4% vs 83.3%)
Higher SWE-Bench Verified score (78.0% vs 69.1%)
OpenAI
Larger context window (200,000 tokens)
Supports multimodal inputs
TencentHy3
OpenAIo3
Compare in Playground

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Hy3 and o3 side-by-side, then vote on the output you prefer.

Hy3
✓ Preferred
o3
Open in Playground
AI Model Comparison Table
Feature
Tencent
Hy3
OpenAI
o3

FAQ

Common questions about Hy3 vs o3.

Which is better, Hy3 or o3?

Hy3 significantly outperforms across most benchmarks. Hy3 is made by Tencent and o3 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 o3 in benchmarks?

Hy3 scores DeepSearchQA: 91.0%, GPQA: 90.4%, IMO-AnswerBench: 90.0%, BrowseComp: 84.2%, MCP Atlas: 79.1%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.

What are the context window sizes for Hy3 and o3?

Hy3 supports an unknown number of tokens and o3 supports 200K 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 o3?

Key differences include multimodal support (no vs yes), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy3 and o3?

Hy3 is developed by Tencent and o3 is developed by OpenAI.

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