SD 3.5 Large vs InternVL 2.5 78B

Compare SD 3.5 Large and InternVL 2.5 78B: 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 SD 3.5 Large InternVL 2.5 78B
CategoryImageVision
Parameters8B78B
Context WindowN/A128K
Input Price$0.004/image/1M tokens$0.05/1M tokens
Output PriceN/A/1M tokens$0.10/1M tokens
Latency~3s~400ms

Choose SD 3.5 Large when:

  • ✓ Detailed illustrations
  • ✓ Temple artwork
  • ✓ Marketing imagery
Key Strengths:

High quality, Detailed output, Good composition

Choose InternVL 2.5 78B when:

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

Strong visual reasoning, Open weights, Good OCR

Verdict: SD 3.5 Large vs InternVL 2.5 78B

For cost efficiency, SD 3.5 Large wins at $0.004/image/1M input tokens. For speed, SD 3.5 Large is faster at ~3s. SD 3.5 Large excels at Detailed illustrations while InternVL 2.5 78B is better for Document 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

SD 3.5 Large costs $0.004/image/1M input tokens and N/A/1M output tokens. InternVL 2.5 78B costs $0.05 input and $0.10 output. SD 3.5 Large is 12.5x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

SD 3.5 Large has a N/A context window with ~3s latency. InternVL 2.5 78B offers 128K context at ~400ms. InternVL 2.5 78B has the larger context window.

Best For

SD 3.5 Large (Image) is optimized for: Detailed illustrations, Temple artwork, Marketing imagery. InternVL 2.5 78B (Vision) works best for: Document analysis, Chart reading, 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 SD 3.5 Large
response_a = client.chat.completions.create(
    model="stable-diffusion-3-5-large",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use InternVL 2.5 78B
response_b = client.chat.completions.create(
    model="internvl-2-5-78b",
    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, SD 3.5 Large or InternVL 2.5 78B?

SD 3.5 Large (Image, 8B) offers High quality. InternVL 2.5 78B (Vision, 78B) offers Strong visual reasoning. Choose SD 3.5 Large for Detailed illustrations or InternVL 2.5 78B for Document analysis.

How much does SD 3.5 Large cost vs InternVL 2.5 78B?

SD 3.5 Large: $0.004/image/1M input, N/A/1M output. InternVL 2.5 78B: $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 SD 3.5 Large and InternVL 2.5 78B 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.