Gemini 2.5 Pro vs FLUX 1.1 Pro
Compare Gemini 2.5 Pro and FLUX 1.1 Pro: 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 | Gemini 2.5 Pro | FLUX 1.1 Pro |
|---|---|---|
| Category | Frontier | Image |
| Parameters | ~1.5T | 24B |
| Context Window | 2M | N/A |
| Input Price | $0.07/1M tokens | $0.05/image/1M tokens |
| Output Price | $0.21/1M tokens | N/A/1M tokens |
| Latency | ~600ms | ~4s |
Choose Gemini 2.5 Pro when:
- ✓ Classical text analysis
- ✓ Multi-document reports
- ✓ Research
2M context, Strong multimodal, Long text analysis
Choose FLUX 1.1 Pro when:
- ✓ Premium marketing
- ✓ Temple artwork
- ✓ Product photography
Highest quality, Best prompt adherence, Professional grade
Verdict: Gemini 2.5 Pro vs FLUX 1.1 Pro
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. Gemini 2.5 Pro excels at Classical text analysis while FLUX 1.1 Pro is better for Premium marketing. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Gemini 2.5 Pro costs $0.07/1M input tokens and $0.21/1M output tokens. FLUX 1.1 Pro costs $0.05/image input and N/A output. FLUX 1.1 Pro is 1.4x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Gemini 2.5 Pro has a 2M context window with ~600ms latency. FLUX 1.1 Pro offers N/A context at ~4s. Gemini 2.5 Pro has the larger context window.
Best For
Gemini 2.5 Pro (Frontier) is optimized for: Classical text analysis, Multi-document reports, Research. FLUX 1.1 Pro (Image) works best for: Premium marketing, Temple artwork, Product photography.
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 Gemini 2.5 Pro
response_a = client.chat.completions.create(
model="gemini-2-5-pro",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use FLUX 1.1 Pro
response_b = client.chat.completions.create(
model="flux-1-1-pro",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Gemini 2.5 Pro or FLUX 1.1 Pro?
Gemini 2.5 Pro (Frontier, ~1.5T) offers 2M context. FLUX 1.1 Pro (Image, 24B) offers Highest quality. Choose Gemini 2.5 Pro for Classical text analysis or FLUX 1.1 Pro for Premium marketing.
How much does Gemini 2.5 Pro cost vs FLUX 1.1 Pro?
Gemini 2.5 Pro: $0.07/1M input, $0.21/1M output. FLUX 1.1 Pro: $0.05/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 Gemini 2.5 Pro and FLUX 1.1 Pro by changing the model parameter. No code changes needed.
Related Comparisons
Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.