Llama 3.1 405B vs Luma Dream Machine

Compare Llama 3.1 405B and Luma Dream Machine: 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 Luma Dream Machine
CategoryOpen SourceVideo
Parameters405B~5B
Context Window128KN/A
Input Price$0.08/1M tokens$0.15/video/1M tokens
Output Price$0.14/1M tokensN/A/1M tokens
Latency~600ms~20s

Choose Llama 3.1 405B when:

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

Largest open model, Highest open-source quality

Choose Luma Dream Machine when:

  • ✓ Quick videos
  • ✓ Social media
  • ✓ Prototyping
Key Strengths:

Fast generation, Good quality, Easy to use

Verdict: Llama 3.1 405B vs Luma Dream Machine

For cost efficiency, Llama 3.1 405B wins at $0.08/1M input tokens. For speed, Luma Dream Machine is faster at ~20s. Llama 3.1 405B excels at Premium tasks while Luma Dream Machine is better for Quick videos. 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. Luma Dream Machine costs $0.15/video input and N/A output. Llama 3.1 405B is 1.9x 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. Luma Dream Machine offers N/A context at ~20s. 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. Luma Dream Machine (Video) works best for: Quick videos, Social media, Prototyping.

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 Luma Dream Machine
response_b = client.chat.completions.create(
    model="luma-dream-machine",
    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 Luma Dream Machine?

Llama 3.1 405B (Open Source, 405B) offers Largest open model. Luma Dream Machine (Video, ~5B) offers Fast generation. Choose Llama 3.1 405B for Premium tasks or Luma Dream Machine for Quick videos.

How much does Llama 3.1 405B cost vs Luma Dream Machine?

Llama 3.1 405B: $0.08/1M input, $0.14/1M output. Luma Dream Machine: $0.15/video/1M input, N/A/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 Luma Dream Machine 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.