Gemini 3 Pro Preview

Provider: openrouter · openrouter/google/gemini-3-pro-preview

Pricing per million tokens

Component USD per 1M tokens
Input $2.00
Output $12.00
Cached input (read) $0.20

💡 With prompt caching, you save up to 90% on cached input tokens — massive for repeated context like system prompts, RAG retrieval, or long conversations.

Monthly cost estimates

Assuming 30% prompt-cache hit rate where available. Adjust for your actual usage.

Small
1M in / 200k out
$3.86
per month
Saves $0.54 via caching
Medium
10M in / 2000k out
$38.60
per month
Saves $5.40 via caching
Large
100M in / 20000k out
$386
per month
Saves $54.00 via caching

Context

Input window
1,048,576 tokens
Max output
65,535 tokens

Capabilities

  • ✅ Vision (image input)
  • ✅ Function / tool calling
  • ✅ Prompt caching
  • ✅ Web search
  • ✅ JSON / response schema

Compare Gemini 3 Pro Preview with similar models

Claude Sonnet 4
openrouter
$3.00 in / $15.00 out
Claude Sonnet 4.6
openrouter
$3.00 in / $15.00 out
Claude Sonnet 4.5
openrouter
$3.00 in / $15.00 out
Gemini 2.5 Pro
openrouter
$1.25 in / $10.00 out
Gemini 3.1 Pro Preview
openrouter
$2.00 in / $12.00 out
Gpt 4.1
openrouter
$2.00 in / $8.00 out

Pricing data sourced from LiteLLM and refreshed regularly. Last updated May 20, 2026. Always verify with the provider's official pricing page before making business decisions.