FLUX.1 Dev vs MythoMax 13B

Compare FLUX.1 Dev and MythoMax 13B: 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 MythoMax 13B
CategoryImageOpen Source
Parameters12B13B
Context WindowN/A4K
Input Price$0.003/image/1M tokens$0.01/1M tokens
Output PriceN/A/1M tokens$0.02/1M tokens
Latency~3s~100ms

Choose FLUX.1 Dev when:

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

Fine-tunable, Good quality, Open weights

Choose MythoMax 13B when:

  • ✓ Story generation
  • ✓ Creative content
  • ✓ Interactive fiction
Key Strengths:

Creative writing, Roleplay, Narrative quality

Verdict: FLUX.1 Dev vs MythoMax 13B

For cost efficiency, FLUX.1 Dev wins at $0.003/image/1M input tokens. For speed, MythoMax 13B is faster at ~100ms. FLUX.1 Dev excels at Custom styles while MythoMax 13B is better for Story 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. MythoMax 13B costs $0.01 input and $0.02 output. FLUX.1 Dev is 3.3x 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. MythoMax 13B offers 4K context at ~100ms. MythoMax 13B has the larger context window.

Best For

FLUX.1 Dev (Image) is optimized for: Custom styles, Fine-tuned imagery, Development. MythoMax 13B (Open Source) works best for: Story generation, Creative content, Interactive fiction.

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 MythoMax 13B
response_b = client.chat.completions.create(
    model="mythomax-13b",
    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, FLUX.1 Dev or MythoMax 13B?

FLUX.1 Dev (Image, 12B) offers Fine-tunable. MythoMax 13B (Open Source, 13B) offers Creative writing. Choose FLUX.1 Dev for Custom styles or MythoMax 13B for Story generation.

How much does FLUX.1 Dev cost vs MythoMax 13B?

FLUX.1 Dev: $0.003/image/1M input, N/A/1M output. MythoMax 13B: $0.01/1M input, $0.02/1M 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 MythoMax 13B 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.