Back to Value Frontier

Google: Gemini 3 Pro Preview vs Google: Gemini 2.5 Pro Preview 05-06

Head-to-head API cost, context, and performance comparison. Synced at 9:52:13 AM.

Executive Summary

When evaluating Google: Gemini 3 Pro Preview against Google: Gemini 2.5 Pro Preview 05-06, the pricing structure is a key differentiator. Google: Gemini 2.5 Pro Preview 05-06 is approximately 20% more cost-effective per 1 million tokens overall.

However, when looking at raw reasoning capabilities, Google: Gemini 3 Pro Preview leads with a statistical ELO score of 1375. For tasks involving complex logic, coding, or instruction-following, developers might prefer Google: Gemini 3 Pro Preview, provided their budget allows for the API burn rate.

Arbitrage Alert

You are losing 20%
per million tokens by hardcoding Google: Gemini 3 Pro Preview.

Stop guessing exactly which model to route to. Deploy the 0ms Intelligence Engine to automatically arbitrage this 20% gap in your production environment instantly.

20% Instant Profit Margin Recovery
Node.js Enterprise SDK included

Raw Technical comparison

Metric
Google: Gemini 3 Pro Preview
Google: Gemini 2.5 Pro Preview 05-06
Performance (ELO)
1375
1300
Input Cost / 1M
$2.00
$1.25
Output Cost / 1M
$12.00
$10.00
Context Window
1,048,576 tokens
1,048,576 tokens

Verdict

If you are looking for pure performance and capability, Google: Gemini 3 Pro Preview is statistically superior. However, if API burn rate is the primary concern, Google: Gemini 2.5 Pro Preview 05-06 wins out aggressively in pricing.

People Also Ask

Is Google: Gemini 3 Pro Preview cheaper than Google: Gemini 2.5 Pro Preview 05-06?

No. Google: Gemini 2.5 Pro Preview 05-06 is the more cost-effective model, operating at a lower price point per 1 million tokens.

Which model has the larger context window?

Both models offer an identical context window of 1,048,576 tokens.

Related Comparisons

Compare Google: Gemini 3 Pro Preview vs Nous: Hermes 3 405B Instruct (free)Compare Google: Gemini 3 Pro Preview vs Sao10K: Llama 3 8B LunarisCompare Google: Gemini 3 Pro Preview vs Google: Gemini 2.0 Flash LiteCompare Google: Gemini 3 Pro Preview vs OpenAI: GPT-5 Nano