FLUX 1.1 Pro vs Gemini 2.5 Pro Preview
Compare FLUX 1.1 Pro and Gemini 2.5 Pro Preview: 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 | Gemini 2.5 Pro Preview |
|---|---|---|
| Category | Image | Frontier |
| Parameters | 24B | ~1.5T |
| Context Window | N/A | 2M |
| Input Price | $0.05/image/1M tokens | $0.07/1M tokens |
| Output Price | N/A/1M tokens | $0.21/1M tokens |
| Latency | ~4s | ~700ms |
Choose FLUX 1.1 Pro when:
- ✓ Premium marketing
- ✓ Temple artwork
- ✓ Product photography
Highest quality, Best prompt adherence, Professional grade
Choose Gemini 2.5 Pro Preview when:
- ✓ Research
- ✓ Long analysis
- ✓ Testing new capabilities
2M context, Experimental features, Strong reasoning
Verdict: FLUX 1.1 Pro vs Gemini 2.5 Pro Preview
For cost efficiency, FLUX 1.1 Pro wins at $0.05/image/1M input tokens. For speed, FLUX 1.1 Pro is faster at ~4s. FLUX 1.1 Pro excels at Premium marketing while Gemini 2.5 Pro Preview is better for Research. 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. Gemini 2.5 Pro Preview costs $0.07 input and $0.21 output. FLUX 1.1 Pro is 1.4x 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. Gemini 2.5 Pro Preview offers 2M context at ~700ms. Gemini 2.5 Pro Preview has the larger context window.
Best For
FLUX 1.1 Pro (Image) is optimized for: Premium marketing, Temple artwork, Product photography. Gemini 2.5 Pro Preview (Frontier) works best for: Research, Long analysis, Testing new capabilities.
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 Gemini 2.5 Pro Preview
response_b = client.chat.completions.create(
model="gemini-2-5-pro-preview",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, FLUX 1.1 Pro or Gemini 2.5 Pro Preview?
FLUX 1.1 Pro (Image, 24B) offers Highest quality. Gemini 2.5 Pro Preview (Frontier, ~1.5T) offers 2M context. Choose FLUX 1.1 Pro for Premium marketing or Gemini 2.5 Pro Preview for Research.
How much does FLUX 1.1 Pro cost vs Gemini 2.5 Pro Preview?
FLUX 1.1 Pro: $0.05/image/1M input, N/A/1M output. Gemini 2.5 Pro Preview: $0.07/1M input, $0.21/1M 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 Gemini 2.5 Pro Preview 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.