Llama 3.1 405B vs Llama 3.2 90B Vision

Compare Llama 3.1 405B and Llama 3.2 90B Vision: 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 Llama 3.2 90B Vision
CategoryOpen SourceVision
Parameters405B90B
Context Window128K128K
Input Price$0.08/1M tokens$0.06/1M tokens
Output Price$0.14/1M tokens$0.10/1M tokens
Latency~600ms~500ms

Choose Llama 3.1 405B when:

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

Largest open model, Highest open-source quality

Choose Llama 3.2 90B Vision when:

  • ✓ Chart image analysis
  • ✓ Document scanning
  • ✓ Visual Q&A
Key Strengths:

Vision + language, Open weights, Good reasoning

Verdict: Llama 3.1 405B vs Llama 3.2 90B Vision

For cost efficiency, Llama 3.2 90B Vision wins at $0.06/1M input tokens. For speed, Llama 3.2 90B Vision is faster at ~500ms. Llama 3.1 405B excels at Premium tasks while Llama 3.2 90B Vision is better for Chart image analysis. 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. Llama 3.2 90B Vision costs $0.06 input and $0.10 output. Llama 3.2 90B Vision is 1.3x 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. Llama 3.2 90B Vision offers 128K context at ~500ms. Both have identical context windows.

Best For

Llama 3.1 405B (Open Source) is optimized for: Premium tasks, Research, Fine-tuning base. Llama 3.2 90B Vision (Vision) works best for: Chart image analysis, Document scanning, Visual Q&A.

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 Llama 3.2 90B Vision
response_b = client.chat.completions.create(
    model="llama-3-2-90b-vision",
    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 Llama 3.2 90B Vision?

Llama 3.1 405B (Open Source, 405B) offers Largest open model. Llama 3.2 90B Vision (Vision, 90B) offers Vision + language. Choose Llama 3.1 405B for Premium tasks or Llama 3.2 90B Vision for Chart image analysis.

How much does Llama 3.1 405B cost vs Llama 3.2 90B Vision?

Llama 3.1 405B: $0.08/1M input, $0.14/1M output. Llama 3.2 90B Vision: $0.06/1M 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 Llama 3.2 90B Vision 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.