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Qwen3.8-Flash-Next vs Solar Pro 4

Qwen3.8-Flash-Next leads the LLM Stats Score 50.5 to 36.0.

Alibaba Cloud / Qwen Team · Upstage · Updated for 2026

Which is better?

Qwen3.8-Flash-Next leads the overall LLM Stats Score 50.5 to 36.0, ranking #14 overall.

In the 1 individual benchmarks reported for both models, Qwen3.8-Flash-Next wins 1; 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 Qwen3.8-Flash-Next

  • overall performance matters — it scores 50.5 and ranks #14 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

Choose Solar Pro 4

  • you want predictable pricing at $0.30/M input and $1.20/M output

At a glance

The differences that matter most.

Qwen3.8-Flash-Next
Alibaba Cloud / Qwen Team
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
50.5
#14
36.0
#72
Reasoning
50.6
#12
35.6
#71
Coding
38.4
#19
22.1
#73
Agents
37.2
#12
13.8
#84
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
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
Qwen3.8-Flash-Next
Solar Pro 4
Math
33.3#50
32.0#55
Tool use
32.3#8
15.3#81
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

22 reported for Qwen3.8-Flash-Next · 9 for Solar Pro 4

1 shared

Qwen3.8-Flash-Next outperforms in 1 benchmarks (GPQA), while Solar Pro 4 is better at 0 benchmarks.

Qwen3.8-Flash-Next 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).

Alibaba Cloud / Qwen Team
Qwen3.8-Flash-Next
Input- tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Fri Aug 28 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Qwen3.8-Flash-Next supports multimodal inputs, whereas Solar Pro 4 does not.

Qwen3.8-Flash-Next can handle both text and other forms of data like images, making it suitable for multimodal applications.

Qwen3.8-Flash-Next

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

Qwen3.8-Flash-Next is licensed under Qwen Community License 1.0, while Solar Pro 4 uses a proprietary license.

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

Qwen3.8-Flash-Next

Qwen Community License 1.0

Open weights

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.8-Flash-Next was released on 2026-08-26, while Solar Pro 4 was released on 2026-08-06.

Qwen3.8-Flash-Next is 1 month newer than Solar Pro 4.

Qwen3.8-Flash-Next

Aug 26, 2026

2 days ago

2w newer
Solar Pro 4

Aug 6, 2026

3 weeks 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→

Judge for yourself.

Run your own prompts against Qwen3.8-Flash-Next and Solar Pro 4 side-by-side, then vote on the output you prefer.

Qwen3.8-Flash-Next
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Qwen3.8-Flash-Next vs Solar Pro 4.

Which is better, Qwen3.8-Flash-Next or Solar Pro 4?

Qwen3.8-Flash-Next leads the LLM Stats Score 50.5 to 36.0. Qwen3.8-Flash-Next is made by Alibaba Cloud / Qwen Team 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 Qwen3.8-Flash-Next compare to Solar Pro 4 in benchmarks?

Qwen3.8-Flash-Next scores MathVision: 95.7%, LiveCodeBench v6: 91.9%, GPQA: 91.7%, CharXiv-R: 90.6%, RealWorldQA: 88.5%. 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 Qwen3.8-Flash-Next and Solar Pro 4?

Qwen3.8-Flash-Next 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 Qwen3.8-Flash-Next and Solar Pro 4?

Key differences include LLM Stats Score (50.5 vs 36.0), multimodal support (yes vs no), licensing (Qwen Community License 1.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Qwen3.8-Flash-Next and Solar Pro 4?

Qwen3.8-Flash-Next is developed by Alibaba Cloud / Qwen Team and Solar Pro 4 is developed by Upstage.

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