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Hy3 vs Solar Pro 4

Hy3 leads the LLM Stats Score 42.9 to 36.0.

Tencent · Upstage · Updated for 2026

Which is better?

Hy3 leads the overall LLM Stats Score 42.9 to 36.0, ranking #39 overall.

In the 5 individual benchmarks reported for both models, Hy3 wins 5; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Hy3

  • overall performance matters — it scores 42.9 and ranks #39 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 5 of 5 exact shared results
  • you need open weights you can self-host or fine-tune

Choose Solar Pro 4

  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Hy3
Tencent
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
42.9
#39
36.0
#72
Reasoning
42.9
#37
35.6
#71
Coding
35.0
#27
22.1
#73
Agents
28.2
#36
13.8
#84
Cost, coverage & limits
Benchmark wins
5 of 5
0 of 5
Input price
— / M
$0.30 / M
Output price
— / M
$1.20 / M
Context window
—
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Hy3
Solar Pro 4
Math
34.6#43
32.0#55
Tool use
23.2#39
15.3#81
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Hy3 · 9 for Solar Pro 4

5 shared

Hy3 outperforms in 5 benchmarks (AA-LCR, BrowseComp, GPQA, SWE-Bench Verified, Terminal-Bench 2.1), while Solar Pro 4 is better at 0 benchmarks.

Hy3 significantly outperforms across most benchmarks.

Fri Aug 28 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Solar Pro 4 specifies input context (524,288 tokens). Only Solar Pro 4 specifies output context (131,072 tokens).

Tencent
Hy3
Input- tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Fri Aug 28 2026 • llm-stats.com

License

Usage and distribution terms

Hy3 is licensed under Apache 2.0, while Solar Pro 4 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

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Hy3 was released on 2026-07-06, while Solar Pro 4 was released on 2026-08-06.

Solar Pro 4 is 1 month newer than Hy3.

Hy3

Jul 6, 2026

1 months ago

Solar Pro 4

Aug 6, 2026

3 weeks ago

1mo newer

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→

Judge for yourself.

Run your own prompts against Hy3 and Solar Pro 4 side-by-side, then vote on the output you prefer.

Hy3
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Hy3 vs Solar Pro 4.

Which is better, Hy3 or Solar Pro 4?

Hy3 leads the LLM Stats Score 42.9 to 36.0. Hy3 is made by Tencent and Solar Pro 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Hy3 compare to Solar Pro 4 in benchmarks?

Hy3 scores DeepSearchQA: 91.0%, GPQA: 90.4%, IMO-AnswerBench: 90.0%, BrowseComp: 84.2%, MCP Atlas: 79.1%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

What are the context window sizes for Hy3 and Solar Pro 4?

Hy3 supports an unknown number of tokens and Solar Pro 4 supports 524K 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 Solar Pro 4?

Key differences include LLM Stats Score (42.9 vs 36.0), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Hy3 and Solar Pro 4?

Hy3 is developed by Tencent and Solar Pro 4 is developed by Upstage.

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