Gemma 3 27B vs Gemini 2.5 Flash Lite

Compare Gemma 3 27B and Gemini 2.5 Flash Lite: 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 Gemma 3 27B Gemini 2.5 Flash Lite
CategoryOpen SourceCompact
Parameters27B~50B
Context Window128K1M
Input Price$0.03/1M tokens$0.008/1M tokens
Output Price$0.05/1M tokens$0.03/1M tokens
Latency~180ms~120ms

Choose Gemma 3 27B when:

  • ✓ Fast chatbots
  • ✓ Content moderation
  • ✓ Temple kiosks
Key Strengths:

Fast inference, Reliable output, Strong English/Hindi

Choose Gemini 2.5 Flash Lite when:

  • ✓ Budget applications
  • ✓ Simple Q&A
  • ✓ High-volume
Key Strengths:

Very low cost, 1M context, Fast

Verdict: Gemma 3 27B vs Gemini 2.5 Flash Lite

For cost efficiency, Gemini 2.5 Flash Lite wins at $0.008/1M input tokens. For speed, Gemini 2.5 Flash Lite is faster at ~120ms. Gemma 3 27B excels at Fast chatbots while Gemini 2.5 Flash Lite is better for Budget applications. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

Gemma 3 27B costs $0.03/1M input tokens and $0.05/1M output tokens. Gemini 2.5 Flash Lite costs $0.008 input and $0.03 output. Gemini 2.5 Flash Lite is 3.8x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Gemma 3 27B has a 128K context window with ~180ms latency. Gemini 2.5 Flash Lite offers 1M context at ~120ms. Gemini 2.5 Flash Lite has the larger context window.

Best For

Gemma 3 27B (Open Source) is optimized for: Fast chatbots, Content moderation, Temple kiosks. Gemini 2.5 Flash Lite (Compact) works best for: Budget applications, Simple Q&A, High-volume.

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 Gemma 3 27B
response_a = client.chat.completions.create(
    model="gemma-3-27b",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Gemini 2.5 Flash Lite
response_b = client.chat.completions.create(
    model="gemini-2-5-flash-lite",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

200+ AI models. One API. Pay-as-you-go.

Get API Key Try in Playground

Frequently Asked Questions

Which is better, Gemma 3 27B or Gemini 2.5 Flash Lite?

Gemma 3 27B (Open Source, 27B) offers Fast inference. Gemini 2.5 Flash Lite (Compact, ~50B) offers Very low cost. Choose Gemma 3 27B for Fast chatbots or Gemini 2.5 Flash Lite for Budget applications.

How much does Gemma 3 27B cost vs Gemini 2.5 Flash Lite?

Gemma 3 27B: $0.03/1M input, $0.05/1M output. Gemini 2.5 Flash Lite: $0.008/1M input, $0.03/1M 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 Gemma 3 27B and Gemini 2.5 Flash Lite 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.