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Qwen3.8-27B vs Solar Pro 4

Qwen3.8-27B leads the LLM Stats Score 45.1 to 35.2. Solar Pro 4 is 2.0x cheaper per token.

Alibaba Cloud / Qwen Team · Upstage · Updated for 2026

Which is better?

Qwen3.8-27B leads the overall LLM Stats Score 45.1 to 35.2, ranking #31 overall.

In the 2 individual benchmarks reported for both models, Qwen3.8-27B wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Solar Pro 4 is roughly 2.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Solar Pro 4 also accepts a larger context window (524,288 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose Qwen3.8-27B

  • overall performance matters — it scores 45.1 and ranks #31 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 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

  • cost matters — it's about 2.0x cheaper per token
  • you process long inputs — it offers a 524,288 token context window

At a glance

The differences that matter most.

Core performance indexes
45.1
#31
35.2
#87
44.7
#32
34.8
#83
31.6
#41
21.1
#90
30.9
#33
11.8
#107
Cost, coverage & limits
Benchmark wins
2 of 2
0 of 2
Input price
$0.40 / M
$0.30 / M
Output price
$3.00 / M
$1.20 / M
Context window
262,144
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Qwen3.8-27B
Solar Pro 4
31.1#70
32.3#60
23.2#43
11.3#113
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

26 reported for Qwen3.8-27B · 9 for Solar Pro 4

2 shared

Qwen3.8-27B outperforms in 2 benchmarks (GPQA, Terminal-Bench 2.1), while Solar Pro 4 is better at 0 benchmarks.

Qwen3.8-27B significantly outperforms across most benchmarks.

Thu Sep 17 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Solar Pro 4 costs less

For input processing, Qwen3.8-27B ($0.40/1M tokens) is 1.3x more expensive than Solar Pro 4 ($0.30/1M tokens).

For output processing, Qwen3.8-27B ($3.00/1M tokens) is 2.5x more expensive than Solar Pro 4 ($1.20/1M tokens).

In conclusion, Qwen3.8-27B is more expensive than Solar Pro 4.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Thu Sep 17 2026 • llm-stats.com
Alibaba Cloud / Qwen Team
Qwen3.8-27B
Input tokens$0.40
Output tokens$3.00
Best providerDeepinfra
Upstage
Solar Pro 4
Input tokens$0.30
Output tokens$1.20
Best providerUnknown Organization
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

Solar Pro 4 accepts 524,288 input tokens compared to Qwen3.8-27B's 262,144 tokens. Qwen3.8-27B can generate longer responses up to 262,144 tokens, while Solar Pro 4 is limited to 131,072 tokens.

Alibaba Cloud / Qwen Team
Qwen3.8-27B
Input262,144 tokens
Output262,144 tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Thu Sep 17 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Qwen3.8-27B supports multimodal inputs, whereas Solar Pro 4 does not.

Qwen3.8-27B can handle both text and other forms of data like images, making it suitable for multimodal applications.

Qwen3.8-27B

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

Qwen3.8-27B 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.

Qwen3.8-27B

Apache 2.0

Open weights

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.8-27B was released on 2026-08-14, while Solar Pro 4 was released on 2026-08-06.

Qwen3.8-27B is 0 month newer than Solar Pro 4.

Qwen3.8-27B

Aug 14, 2026

1 months ago

1w newer
Solar Pro 4

Aug 6, 2026

1 months 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

Provider Availability

Qwen3.8-27B is available from DeepInfra, FriendliAI. Solar Pro 4 is available from Upstage.

Qwen3.8-27B

deepinfra logo
Deepinfra
Input Price:Input: $0.40/1MOutput Price:Output: $3.00/1M
friendli logo
FriendliAI

Solar Pro 4

upstage logo
Unknown Organization
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Qwen3.8-27B and Solar Pro 4 side-by-side, then vote on the output you prefer.

Qwen3.8-27B
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Qwen3.8-27B vs Solar Pro 4.

Which is better, Qwen3.8-27B or Solar Pro 4?

Qwen3.8-27B leads the LLM Stats Score 45.1 to 35.2. Qwen3.8-27B 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 Qwen3.8-27B compare to Solar Pro 4 in benchmarks?

Qwen3.8-27B scores MathVision: 94.6%, OmniDocBench 1.5: 91.1%, LiveCodeBench v6: 90.3%, CharXiv-R: 90.2%, GPQA: 89.2%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

Is Qwen3.8-27B cheaper than Solar Pro 4?

Solar Pro 4 is 1.3x cheaper for input tokens. Qwen3.8-27B costs $0.40/M input and $3.00/M output via deepinfra. Solar Pro 4 costs $0.30/M input and $1.20/M output via upstage.

What are the context window sizes for Qwen3.8-27B and Solar Pro 4?

Qwen3.8-27B supports 262K 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 Qwen3.8-27B and Solar Pro 4?

Key differences include LLM Stats Score (45.1 vs 35.2), context window (262K vs 524K), input pricing ($0.40 vs $0.30/M), multimodal support (yes vs no), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Qwen3.8-27B and Solar Pro 4?

Qwen3.8-27B is developed by Alibaba Cloud / Qwen Team and Solar Pro 4 is developed by Upstage.