Llama 3.1 405B vs Amazon Titan Premier

Compare Llama 3.1 405B and Amazon Titan Premier: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

Updated 2026-05-21 · By Abhishek Raj · Our methodology

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Feature Llama 3.1 405B Amazon Titan Premier
CategoryOpen SourceEnterprise
Parameters405B~100B
Context Window128K32K
Input Price$0.08/1M tokens$0.05/1M tokens
Output Price$0.14/1M tokens$0.10/1M tokens
Latency~600ms~400ms

Choose Llama 3.1 405B when:

  • ✓ Premium tasks
  • ✓ Research
  • ✓ Fine-tuning base
Key Strengths:

Largest open model, Highest open-source quality

Choose Amazon Titan Premier when:

  • ✓ Enterprise apps
  • ✓ AWS integration
  • ✓ Secure workloads
Key Strengths:

AWS native, Enterprise security, Good quality

Verdict: Llama 3.1 405B vs Amazon Titan Premier

For cost efficiency, Amazon Titan Premier wins at $0.05/1M input tokens. For speed, Amazon Titan Premier is faster at ~400ms. Llama 3.1 405B excels at Premium tasks while Amazon Titan Premier is better for Enterprise 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

Llama 3.1 405B costs $0.08/1M input tokens and $0.14/1M output tokens. Amazon Titan Premier costs $0.05 input and $0.10 output. Amazon Titan Premier is 1.6x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Llama 3.1 405B has a 128K context window with ~600ms latency. Amazon Titan Premier offers 32K context at ~400ms. Llama 3.1 405B has the larger context window.

Best For

Llama 3.1 405B (Open Source) is optimized for: Premium tasks, Research, Fine-tuning base. Amazon Titan Premier (Enterprise) works best for: Enterprise apps, AWS integration, Secure workloads.

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 Llama 3.1 405B
response_a = client.chat.completions.create(
    model="llama-3-1-405b",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Amazon Titan Premier
response_b = client.chat.completions.create(
    model="amazon-titan-text-premier",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

200+ AI models. One API. Pay-as-you-go.

Get API Key Try in Playground

Frequently Asked Questions

Which is better, Llama 3.1 405B or Amazon Titan Premier?

Llama 3.1 405B (Open Source, 405B) offers Largest open model. Amazon Titan Premier (Enterprise, ~100B) offers AWS native. Choose Llama 3.1 405B for Premium tasks or Amazon Titan Premier for Enterprise apps.

How much does Llama 3.1 405B cost vs Amazon Titan Premier?

Llama 3.1 405B: $0.08/1M input, $0.14/1M output. Amazon Titan Premier: $0.05/1M input, $0.10/1M 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 Llama 3.1 405B and Amazon Titan Premier 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.