FLUX 1.1 Pro vs FLUX.1 Dev
Compare FLUX 1.1 Pro and FLUX.1 Dev: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.
Updated 2026-05-21 · By Abhishek Raj · Our methodology
| Feature | FLUX 1.1 Pro | FLUX.1 Dev |
|---|---|---|
| Category | Image | Image |
| Parameters | 24B | 12B |
| Context Window | N/A | N/A |
| Input Price | $0.05/image/1M tokens | $0.003/image/1M tokens |
| Output Price | N/A/1M tokens | N/A/1M tokens |
| Latency | ~4s | ~3s |
Choose FLUX 1.1 Pro when:
- ✓ Premium marketing
- ✓ Temple artwork
- ✓ Product photography
Highest quality, Best prompt adherence, Professional grade
Choose FLUX.1 Dev when:
- ✓ Custom styles
- ✓ Fine-tuned imagery
- ✓ Development
Fine-tunable, Good quality, Open weights
Verdict: FLUX 1.1 Pro vs FLUX.1 Dev
For cost efficiency, FLUX.1 Dev wins at $0.003/image/1M input tokens. For speed, FLUX.1 Dev is faster at ~3s. FLUX 1.1 Pro excels at Premium marketing while FLUX.1 Dev is better for Custom styles. 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 1.1 Pro costs $0.05/image/1M input tokens and N/A/1M output tokens. FLUX.1 Dev costs $0.003/image input and N/A output. FLUX.1 Dev is 16.7x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
FLUX 1.1 Pro has a N/A context window with ~4s latency. FLUX.1 Dev offers N/A context at ~3s. Both have identical context windows.
Best For
FLUX 1.1 Pro (Image) is optimized for: Premium marketing, Temple artwork, Product photography. FLUX.1 Dev (Image) works best for: Custom styles, Fine-tuned imagery, Development.
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 1.1 Pro
response_a = client.chat.completions.create(
model="flux-1-1-pro",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use FLUX.1 Dev
response_b = client.chat.completions.create(
model="flux-1-dev",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, FLUX 1.1 Pro or FLUX.1 Dev?
FLUX 1.1 Pro (Image, 24B) offers Highest quality. FLUX.1 Dev (Image, 12B) offers Fine-tunable. Choose FLUX 1.1 Pro for Premium marketing or FLUX.1 Dev for Custom styles.
How much does FLUX 1.1 Pro cost vs FLUX.1 Dev?
FLUX 1.1 Pro: $0.05/image/1M input, N/A/1M output. FLUX.1 Dev: $0.003/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 FLUX 1.1 Pro and FLUX.1 Dev 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.