Llama 3.1 405B vs Playground V3

Compare Llama 3.1 405B and Playground V3: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

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

All Meta models All Playground AI models What is an LLM API? Python Quickstart What is inference?
Feature Llama 3.1 405B Playground V3
CategoryOpen SourceImage
Parameters405B~4B
Context Window128KN/A
Input Price$0.08/1M tokens$0.004/image/1M tokens
Output Price$0.14/1M tokensN/A/1M tokens
Latency~600ms~3s

Choose Llama 3.1 405B when:

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

Largest open model, Highest open-source quality

Choose Playground V3 when:

  • ✓ Creative artwork
  • ✓ Social media
  • ✓ Illustrations
Key Strengths:

Artistic styles, Creative output, Good quality

Verdict: Llama 3.1 405B vs Playground V3

For cost efficiency, Playground V3 wins at $0.004/image/1M input tokens. For speed, Playground V3 is faster at ~3s. Llama 3.1 405B excels at Premium tasks while Playground V3 is better for Creative artwork. 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. Playground V3 costs $0.004/image input and N/A output. Playground V3 is 20.0x 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. Playground V3 offers N/A context at ~3s. 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. Playground V3 (Image) works best for: Creative artwork, Social media, Illustrations.

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 Playground V3
response_b = client.chat.completions.create(
    model="playground-v3",
    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 Playground V3?

Llama 3.1 405B (Open Source, 405B) offers Largest open model. Playground V3 (Image, ~4B) offers Artistic styles. Choose Llama 3.1 405B for Premium tasks or Playground V3 for Creative artwork.

How much does Llama 3.1 405B cost vs Playground V3?

Llama 3.1 405B: $0.08/1M input, $0.14/1M output. Playground V3: $0.004/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 Playground V3 by changing the model parameter. No code changes needed.

Related Comparisons

Llama 3.1 405B vs DALL-E 3 Llama 3.1 405B vs Gemma 3 27B Llama 3.1 405B vs Imagen 3 Llama 3.1 405B vs Llama 4 Scout Llama 3.1 405B vs Llama 4 Maverick Llama 3.1 405B vs Llama 3.3 70B

Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.