StarCoder2 15B vs Solar Pro
Compare StarCoder2 15B 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 | StarCoder2 15B | Solar Pro |
|---|---|---|
| Category | Code | Open Source |
| Parameters | 15B | 22B |
| Context Window | 16K | 32K |
| Input Price | $0.02/1M tokens | $0.02/1M tokens |
| Output Price | $0.03/1M tokens | $0.04/1M tokens |
| Latency | ~150ms | ~180ms |
Choose StarCoder2 15B when:
- ✓ Code completion
- ✓ Code generation
- ✓ Bug fixing
Strong coding, 600+ languages, Open weights
Choose Solar Pro when:
- ✓ General purpose
- ✓ Korean content
- ✓ Chatbots
Good instruction following, Compact, Efficient
Verdict: StarCoder2 15B vs Solar Pro
For cost efficiency, Solar Pro wins at $0.02/1M input tokens. For speed, StarCoder2 15B is faster at ~150ms. StarCoder2 15B excels at Code completion 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
StarCoder2 15B costs $0.02/1M input tokens and $0.03/1M output tokens. Solar Pro costs $0.02 input and $0.04 output. Both models are similarly priced. XALEN offers batch processing at 50% discount on both models.
Performance & Context
StarCoder2 15B has a 16K context window with ~150ms latency. Solar Pro offers 32K context at ~180ms. Solar Pro has the larger context window.
Best For
StarCoder2 15B (Code) is optimized for: Code completion, Code generation, Bug fixing. 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 StarCoder2 15B
response_a = client.chat.completions.create(
model="starcoder2-15b",
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, StarCoder2 15B or Solar Pro?
StarCoder2 15B (Code, 15B) offers Strong coding. Solar Pro (Open Source, 22B) offers Good instruction following. Choose StarCoder2 15B for Code completion or Solar Pro for General purpose.
How much does StarCoder2 15B cost vs Solar Pro?
StarCoder2 15B: $0.02/1M input, $0.03/1M 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 StarCoder2 15B 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.