FLUX.1 Dev vs Nemotron 4 340B

Compare FLUX.1 Dev and Nemotron 4 340B: 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 FLUX.1 Dev Nemotron 4 340B
CategoryImageOpen Source
Parameters12B340B
Context WindowN/A128K
Input Price$0.003/image/1M tokens$0.07/1M tokens
Output PriceN/A/1M tokens$0.12/1M tokens
Latency~3s~500ms

Choose FLUX.1 Dev when:

  • ✓ Custom styles
  • ✓ Fine-tuned imagery
  • ✓ Development
Key Strengths:

Fine-tunable, Good quality, Open weights

Choose Nemotron 4 340B when:

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

Synthetic data generation, Large scale, Good quality

Verdict: FLUX.1 Dev vs Nemotron 4 340B

For cost efficiency, FLUX.1 Dev wins at $0.003/image/1M input tokens. For speed, FLUX.1 Dev is faster at ~3s. FLUX.1 Dev excels at Custom styles while Nemotron 4 340B is better for Data 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

FLUX.1 Dev costs $0.003/image/1M input tokens and N/A/1M output tokens. Nemotron 4 340B costs $0.07 input and $0.12 output. FLUX.1 Dev is 23.3x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

FLUX.1 Dev has a N/A context window with ~3s latency. Nemotron 4 340B offers 128K context at ~500ms. Nemotron 4 340B has the larger context window.

Best For

FLUX.1 Dev (Image) is optimized for: Custom styles, Fine-tuned imagery, Development. Nemotron 4 340B (Open Source) works best for: Data generation, Training data, Research.

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 FLUX.1 Dev
response_a = client.chat.completions.create(
    model="flux-1-dev",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Nemotron 4 340B
response_b = client.chat.completions.create(
    model="nemotron-4-340b",
    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, FLUX.1 Dev or Nemotron 4 340B?

FLUX.1 Dev (Image, 12B) offers Fine-tunable. Nemotron 4 340B (Open Source, 340B) offers Synthetic data generation. Choose FLUX.1 Dev for Custom styles or Nemotron 4 340B for Data generation.

How much does FLUX.1 Dev cost vs Nemotron 4 340B?

FLUX.1 Dev: $0.003/image/1M input, N/A/1M output. Nemotron 4 340B: $0.07/1M input, $0.12/1M 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 FLUX.1 Dev and Nemotron 4 340B 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.