Solar 10.7BvsDeepSeek R1
Upstage vs DeepSeek — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Solar 10.7B | DeepSeek R1 |
|---|---|---|
| Provider | ||
| Arena Rank | — | #3 |
| Context Window | 4K | 128K |
| Input Pricing | Free (open)/1M tokens | $0.55/1M tokens |
| Output Pricing | Free (open)/1M tokens | $2.19/1M tokens |
| Parameters | 10.7B | 671B (37B active) |
| Open Source | Yes | Yes |
| Best For | Korean-English bilingual, fine-tuning, enterprise | Complex reasoning, math, science, coding |
| Release Date | Dec 13, 2023 | Jan 20, 2025 |
Solar 10.7B
Solar 10.7B is Upstage's open-source model using a novel depth upscaling technique to create a 10.7 billion parameter model from smaller pretrained weights. It delivers strong bilingual Korean-English performance and was the top-ranked 10B-class model on the Hugging Face Open LLM Leaderboard at release. Solar has been widely adopted in South Korean enterprise AI applications.
View Upstage profile →DeepSeek R1
DeepSeek R1 is DeepSeek's reasoning model that rivals OpenAI's o1 at a fraction of the cost. Using reinforcement learning to develop chain-of-thought reasoning capabilities, R1 excels at complex mathematics, scientific reasoning, and coding challenges. Its open-source release sent shockwaves through the AI industry, demonstrating that advanced reasoning capabilities could be replicated outside of major Western labs and at dramatically lower training costs.
View DeepSeek profile →Key Differences: Solar 10.7B vs DeepSeek R1
DeepSeek R1 supports a larger context window (128K), allowing it to process longer documents in a single request.
Solar 10.7B has 10.7B parameters vs DeepSeek R1's 671B (37B active), which affects inference speed and capability.
When to use Solar 10.7B
- +Your use case involves korean-english bilingual, fine-tuning, enterprise
When to use DeepSeek R1
- +You need to process long documents (128K context)
- +Your use case involves complex reasoning, math, science, coding
The Verdict
DeepSeek R1 wins our head-to-head comparison with 5 out of 5 category wins. It's the stronger choice for complex reasoning, math, science, coding, though Solar 10.7B holds an edge in korean-english bilingual, fine-tuning, enterprise.
Last compared: March 2026 · Data sourced from public benchmarks and official pricing pages