DeepSeek V3 vs Qwen 3 4B
Compare DeepSeek V3 and Qwen 3 4B: 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 | DeepSeek V3 | Qwen 3 4B |
|---|---|---|
| Category | Open Source | Compact |
| Parameters | 671B (37B active) | 4B |
| Context Window | 128K | 128K |
| Input Price | $0.05/1M tokens | $0.006/1M tokens |
| Output Price | $0.09/1M tokens | $0.012/1M tokens |
| Latency | ~400ms | ~50ms |
Choose DeepSeek V3 when:
- ✓ API response generation
- ✓ High-volume processing
- ✓ Code
MoE efficiency, Strong coding, Good structured output
Choose Qwen 3 4B when:
- ✓ Mobile apps
- ✓ Intent detection
- ✓ Preprocessing
Ultra-compact, Mobile-ready, Low cost
Verdict: DeepSeek V3 vs Qwen 3 4B
For cost efficiency, Qwen 3 4B wins at $0.006/1M input tokens. For speed, DeepSeek V3 is faster at ~400ms. DeepSeek V3 excels at API response generation while Qwen 3 4B is better for Mobile apps. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
DeepSeek V3 costs $0.05/1M input tokens and $0.09/1M output tokens. Qwen 3 4B costs $0.006 input and $0.012 output. Qwen 3 4B is 8.3x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
DeepSeek V3 has a 128K context window with ~400ms latency. Qwen 3 4B offers 128K context at ~50ms. Both have identical context windows.
Best For
DeepSeek V3 (Open Source) is optimized for: API response generation, High-volume processing, Code. Qwen 3 4B (Compact) works best for: Mobile apps, Intent detection, Preprocessing.
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 DeepSeek V3
response_a = client.chat.completions.create(
model="deepseek-v3",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Qwen 3 4B
response_b = client.chat.completions.create(
model="qwen-3-4b",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, DeepSeek V3 or Qwen 3 4B?
DeepSeek V3 (Open Source, 671B (37B active)) offers MoE efficiency. Qwen 3 4B (Compact, 4B) offers Ultra-compact. Choose DeepSeek V3 for API response generation or Qwen 3 4B for Mobile apps.
How much does DeepSeek V3 cost vs Qwen 3 4B?
DeepSeek V3: $0.05/1M input, $0.09/1M output. Qwen 3 4B: $0.006/1M input, $0.012/1M 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 DeepSeek V3 and Qwen 3 4B 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.