Gemini 2.5 Pro Preview vs Dolphin 2.9.3 72B
Compare Gemini 2.5 Pro Preview and Dolphin 2.9.3 72B: 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 Preview | Dolphin 2.9.3 72B |
|---|---|---|
| Category | Frontier | Open Source |
| Parameters | ~1.5T | 72B |
| Context Window | 2M | 128K |
| Input Price | $0.07/1M tokens | $0.04/1M tokens |
| Output Price | $0.21/1M tokens | $0.08/1M tokens |
| Latency | ~700ms | ~350ms |
Choose Gemini 2.5 Pro Preview when:
- ✓ Research
- ✓ Long analysis
- ✓ Testing new capabilities
2M context, Experimental features, Strong reasoning
Choose Dolphin 2.9.3 72B when:
- ✓ Creative writing
- ✓ Unrestricted generation
- ✓ Research
Uncensored, Strong instruction following, Versatile
Verdict: Gemini 2.5 Pro Preview vs Dolphin 2.9.3 72B
For cost efficiency, Dolphin 2.9.3 72B wins at $0.04/1M input tokens. For speed, Dolphin 2.9.3 72B is faster at ~350ms. Gemini 2.5 Pro Preview excels at Research while Dolphin 2.9.3 72B is better for Creative writing. 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 Preview costs $0.07/1M input tokens and $0.21/1M output tokens. Dolphin 2.9.3 72B costs $0.04 input and $0.08 output. Dolphin 2.9.3 72B is 1.8x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Gemini 2.5 Pro Preview has a 2M context window with ~700ms latency. Dolphin 2.9.3 72B offers 128K context at ~350ms. Gemini 2.5 Pro Preview has the larger context window.
Best For
Gemini 2.5 Pro Preview (Frontier) is optimized for: Research, Long analysis, Testing new capabilities. Dolphin 2.9.3 72B (Open Source) works best for: Creative writing, Unrestricted generation, Research.
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 Preview
response_a = client.chat.completions.create(
model="gemini-2-5-pro-preview",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Dolphin 2.9.3 72B
response_b = client.chat.completions.create(
model="dolphin-2-9-3-72b",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Gemini 2.5 Pro Preview or Dolphin 2.9.3 72B?
Gemini 2.5 Pro Preview (Frontier, ~1.5T) offers 2M context. Dolphin 2.9.3 72B (Open Source, 72B) offers Uncensored. Choose Gemini 2.5 Pro Preview for Research or Dolphin 2.9.3 72B for Creative writing.
How much does Gemini 2.5 Pro Preview cost vs Dolphin 2.9.3 72B?
Gemini 2.5 Pro Preview: $0.07/1M input, $0.21/1M output. Dolphin 2.9.3 72B: $0.04/1M input, $0.08/1M 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 Preview and Dolphin 2.9.3 72B 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.