Llama 3.1 405B vs Midjourney V7

Compare Llama 3.1 405B and Midjourney V7: 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 Midjourney V7
CategoryOpen SourceImage
Parameters405B~10B
Context Window128KN/A
Input Price$0.08/1M tokens$0.05/image/1M tokens
Output Price$0.14/1M tokensN/A/1M tokens
Latency~600ms~5s

Choose Llama 3.1 405B when:

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

Largest open model, Highest open-source quality

Choose Midjourney V7 when:

  • ✓ Art generation
  • ✓ Concept art
  • ✓ Premium visuals
Key Strengths:

Best aesthetics, Artistic quality, Consistent style

Verdict: Llama 3.1 405B vs Midjourney V7

For cost efficiency, Midjourney V7 wins at $0.05/image/1M input tokens. For speed, Midjourney V7 is faster at ~5s. Llama 3.1 405B excels at Premium tasks while Midjourney V7 is better for Art generation. 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. Midjourney V7 costs $0.05/image input and N/A output. Midjourney V7 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. Midjourney V7 offers N/A context at ~5s. 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. Midjourney V7 (Image) works best for: Art generation, Concept art, Premium visuals.

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 Midjourney V7
response_b = client.chat.completions.create(
    model="midjourney-v7",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

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Get API Key Try in Playground

Frequently Asked Questions

Which is better, Llama 3.1 405B or Midjourney V7?

Llama 3.1 405B (Open Source, 405B) offers Largest open model. Midjourney V7 (Image, ~10B) offers Best aesthetics. Choose Llama 3.1 405B for Premium tasks or Midjourney V7 for Art generation.

How much does Llama 3.1 405B cost vs Midjourney V7?

Llama 3.1 405B: $0.08/1M input, $0.14/1M output. Midjourney V7: $0.05/image/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 Midjourney V7 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.