Yi Lightning vs Solar Pro
Compare Yi Lightning and Solar Pro: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.
Updated 2026-05-21 · By Abhishek Raj · Our methodology
| Feature | Yi Lightning | Solar Pro |
|---|---|---|
| Category | Open Source | Open Source |
| Parameters | 200B MoE | 22B |
| Context Window | 128K | 32K |
| Input Price | $0.04/1M tokens | $0.02/1M tokens |
| Output Price | $0.08/1M tokens | $0.04/1M tokens |
| Latency | ~300ms | ~180ms |
Choose Yi Lightning when:
- ✓ High-volume APIs
- ✓ Fast Q&A
- ✓ Real-time chatbots
Fast inference, Good multilingual, Strong reasoning
Choose Solar Pro when:
- ✓ General purpose
- ✓ Korean content
- ✓ Chatbots
Good instruction following, Compact, Efficient
Verdict: Yi Lightning vs Solar Pro
For cost efficiency, Solar Pro wins at $0.02/1M input tokens. For speed, Solar Pro is faster at ~180ms. Yi Lightning excels at High-volume APIs while Solar Pro is better for General purpose. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Yi Lightning costs $0.04/1M input tokens and $0.08/1M output tokens. Solar Pro costs $0.02 input and $0.04 output. Solar Pro is 2.0x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Yi Lightning has a 128K context window with ~300ms latency. Solar Pro offers 32K context at ~180ms. Yi Lightning has the larger context window.
Best For
Yi Lightning (Open Source) is optimized for: High-volume APIs, Fast Q&A, Real-time chatbots. Solar Pro (Open Source) works best for: General purpose, Korean content, Chatbots.
Try Both on XALEN
Both models are available through XALEN's OpenAI-compatible API. Switch between them by changing the model parameter:
from xalen import XALEN
client = XALEN(api_key="xln_test_YOUR_KEY")
# Use Yi Lightning
response_a = client.chat.completions.create(
model="yi-lightning",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Solar Pro
response_b = client.chat.completions.create(
model="solar-pro",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Yi Lightning or Solar Pro?
Yi Lightning (Open Source, 200B MoE) offers Fast inference. Solar Pro (Open Source, 22B) offers Good instruction following. Choose Yi Lightning for High-volume APIs or Solar Pro for General purpose.
How much does Yi Lightning cost vs Solar Pro?
Yi Lightning: $0.04/1M input, $0.08/1M output. Solar Pro: $0.02/1M input, $0.04/1M output. Both available on XALEN with batch processing at 50% discount.
Can I use both models on XALEN?
Yes. XALEN provides 200+ models through a single OpenAI-compatible API. Switch between Yi Lightning and Solar Pro by changing the model parameter. No code changes needed.
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Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.