Nemotron 4 340B vs Stable Image Ultra

Compare Nemotron 4 340B and Stable Image Ultra: 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 Nemotron 4 340B Stable Image Ultra
CategoryOpen SourceImage
Parameters340B~12B
Context Window128KN/A
Input Price$0.07/1M tokens$0.008/image/1M tokens
Output Price$0.12/1M tokensN/A/1M tokens
Latency~500ms~4s

Choose Nemotron 4 340B when:

  • ✓ Data generation
  • ✓ Training data
  • ✓ Research
Key Strengths:

Synthetic data generation, Large scale, Good quality

Choose Stable Image Ultra when:

  • ✓ Premium photography
  • ✓ Marketing
  • ✓ Product shoots
Key Strengths:

Highest quality, Photorealistic, Professional

Verdict: Nemotron 4 340B vs Stable Image Ultra

For cost efficiency, Stable Image Ultra wins at $0.008/image/1M input tokens. For speed, Stable Image Ultra is faster at ~4s. Nemotron 4 340B excels at Data generation while Stable Image Ultra is better for Premium photography. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

Nemotron 4 340B costs $0.07/1M input tokens and $0.12/1M output tokens. Stable Image Ultra costs $0.008/image input and N/A output. Stable Image Ultra is 8.8x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Nemotron 4 340B has a 128K context window with ~500ms latency. Stable Image Ultra offers N/A context at ~4s. Nemotron 4 340B has the larger context window.

Best For

Nemotron 4 340B (Open Source) is optimized for: Data generation, Training data, Research. Stable Image Ultra (Image) works best for: Premium photography, Marketing, Product shoots.

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 Nemotron 4 340B
response_a = client.chat.completions.create(
    model="nemotron-4-340b",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Stable Image Ultra
response_b = client.chat.completions.create(
    model="stable-image-ultra",
    messages=[{"role": "user", "content": "Your question here"}]
)

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Frequently Asked Questions

Which is better, Nemotron 4 340B or Stable Image Ultra?

Nemotron 4 340B (Open Source, 340B) offers Synthetic data generation. Stable Image Ultra (Image, ~12B) offers Highest quality. Choose Nemotron 4 340B for Data generation or Stable Image Ultra for Premium photography.

How much does Nemotron 4 340B cost vs Stable Image Ultra?

Nemotron 4 340B: $0.07/1M input, $0.12/1M output. Stable Image Ultra: $0.008/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 Nemotron 4 340B and Stable Image Ultra by changing the model parameter. No code changes needed.

Related Comparisons

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