Amazon Nova Pro vs Llama Guard 3 8B
Compare Amazon Nova Pro and Llama Guard 3 8B: 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 | Amazon Nova Pro | Llama Guard 3 8B |
|---|---|---|
| Category | Frontier | Safety |
| Parameters | ~300B | 8B |
| Context Window | 300K | 128K |
| Input Price | $0.008/1M tokens | $0.01/1M tokens |
| Output Price | $0.032/1M tokens | $0.02/1M tokens |
| Latency | ~300ms | ~60ms |
Choose Amazon Nova Pro when:
- ✓ Budget apps
- ✓ Document analysis
- ✓ Enterprise
Very low cost, 300K context, Multimodal
Choose Llama Guard 3 8B when:
- ✓ Content moderation
- ✓ Safety filtering
- ✓ Input validation
Safety classification, Fast, Open weights
Verdict: Amazon Nova Pro vs Llama Guard 3 8B
For cost efficiency, Amazon Nova Pro wins at $0.008/1M input tokens. For speed, Amazon Nova Pro is faster at ~300ms. Amazon Nova Pro excels at Budget apps while Llama Guard 3 8B is better for Content moderation. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Amazon Nova Pro costs $0.008/1M input tokens and $0.032/1M output tokens. Llama Guard 3 8B costs $0.01 input and $0.02 output. Amazon Nova Pro is 1.3x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Amazon Nova Pro has a 300K context window with ~300ms latency. Llama Guard 3 8B offers 128K context at ~60ms. Amazon Nova Pro has the larger context window.
Best For
Amazon Nova Pro (Frontier) is optimized for: Budget apps, Document analysis, Enterprise. Llama Guard 3 8B (Safety) works best for: Content moderation, Safety filtering, Input validation.
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 Amazon Nova Pro
response_a = client.chat.completions.create(
model="amazon-nova-pro",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Llama Guard 3 8B
response_b = client.chat.completions.create(
model="llama-guard-3-8b",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Amazon Nova Pro or Llama Guard 3 8B?
Amazon Nova Pro (Frontier, ~300B) offers Very low cost. Llama Guard 3 8B (Safety, 8B) offers Safety classification. Choose Amazon Nova Pro for Budget apps or Llama Guard 3 8B for Content moderation.
How much does Amazon Nova Pro cost vs Llama Guard 3 8B?
Amazon Nova Pro: $0.008/1M input, $0.032/1M output. Llama Guard 3 8B: $0.01/1M input, $0.02/1M 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 Amazon Nova Pro and Llama Guard 3 8B 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.