DeepSeek R1 vs Solar Pro 3

Compare DeepSeek R1 by DeepSeek against Solar Pro 3 by Upstage, context windows of 128K vs 128K, tested across 38 shared challenges. Updated April 2026.

Which is better, DeepSeek R1 or Solar Pro 3?

DeepSeek R1 and Solar Pro 3 are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $0/M for Solar Pro 3. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek R1 and Solar Pro 3

DeepSeek R1 is made by deepseek while Solar Pro 3 is from upstage. DeepSeek R1 has a 128K token context window compared to Solar Pro 3's 128K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $0/M for Solar Pro 3.

Our Verdict
DeepSeek R1
DeepSeek R1
Solar Pro 3
Solar Pro 3

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
90%

Solar Pro 3 uses 4.0x more emoji

DeepSeek R1
Solar Pro 3
62%Vocabulary50%
15wSentence Length21w
0.52Hedging0.42
8.0Bold6.5
5.7Lists2.2
0.04Emoji0.17
0.62Headings0.56
0.28Transitions0.12
Based on 22 + 18 text responses
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DeepSeek R1Solar Pro 3

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

AI Hallucination Index 2026
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