FLUX.1 Dev vs Jamba 1.5 Large

Compare FLUX.1 Dev and Jamba 1.5 Large: 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 Jamba 1.5 Large
CategoryImageEnterprise
Parameters12B398B (94B active)
Context WindowN/A256K
Input Price$0.003/image/1M tokens$0.08/1M tokens
Output PriceN/A/1M tokens$0.14/1M tokens
Latency~3s~500ms

Choose FLUX.1 Dev when:

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

Fine-tunable, Good quality, Open weights

Choose Jamba 1.5 Large when:

  • ✓ Full text processing
  • ✓ Comprehensive reports
  • ✓ Long analysis
Key Strengths:

256K context, SSM-Transformer hybrid, Good summarization

Verdict: FLUX.1 Dev vs Jamba 1.5 Large

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 Jamba 1.5 Large is better for Full text processing. 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. Jamba 1.5 Large costs $0.08 input and $0.14 output. FLUX.1 Dev is 26.7x 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. Jamba 1.5 Large offers 256K context at ~500ms. Jamba 1.5 Large has the larger context window.

Best For

FLUX.1 Dev (Image) is optimized for: Custom styles, Fine-tuned imagery, Development. Jamba 1.5 Large (Enterprise) works best for: Full text processing, Comprehensive reports, Long analysis.

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 Jamba 1.5 Large
response_b = client.chat.completions.create(
    model="jamba-1-5-large",
    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 Jamba 1.5 Large?

FLUX.1 Dev (Image, 12B) offers Fine-tunable. Jamba 1.5 Large (Enterprise, 398B (94B active)) offers 256K context. Choose FLUX.1 Dev for Custom styles or Jamba 1.5 Large for Full text processing.

How much does FLUX.1 Dev cost vs Jamba 1.5 Large?

FLUX.1 Dev: $0.003/image/1M input, N/A/1M output. Jamba 1.5 Large: $0.08/1M input, $0.14/1M 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 Jamba 1.5 Large 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.