Gemini 3 Pro Preview API Pricing
Google's retired first Gemini 3 Pro preview, kept here for archive pricing and migration checks: $2/M input, $12/M output, and $0.2/M cached input. Kept as an archive page.
Run the numbers.
Calculator pre-loaded with Gemini 3 Pro Preview archive rates. Archive price mirrors the Gemini 3 Pro Preview list rate preserved in the project snapshot: $2/M input, $0.20/M cached input, and $12/M output for prompts up to 200K tokens; tier 2 above 200K was $4/$0.40/$18.
Real-world presets.
Invoice replay
Legacy benchmark batch
Migration cost comparison
Archived RAG answer
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Gemini 3 Pro Preview Current | $2.00 cache $0.20 | $12.00 | $1.44 agentic 92/8 | 1M | Archive Gemini 3 Pro Preview |
| Gemini 3.1 Pro Preview | $2.00 cache $0.20 | $12.00 | $1.44 same | 1M | Current Gemini Pro preview |
| Gemini 3 Flash Preview | $0.50 cache $0.05 | $3.00 | $0.361 −4.0× | 1M | Current Gemini 3 Flash |
| Gemini 3.1 Flash-Lite | $0.25 cache $0.025 | $1.50 | $0.18 deprecated · −8.0× | 1M | Current high-volume Gemini |
| Gemini 3.8 Flash | $0.75 cache $0.075 | $3.75 | $0.481 −3.0× · promo | 1M | Google's pick for new projects |
| Gemini 3.5 Flash-Lite | $0.30 cache $0.03 | $2.50 | $0.272 −5.3× | 1M | Stable Lite replacement |
| GPT-5.4 mini | $0.75 cache $0.075 | $4.50 | $0.541 −2.7× | 400K | OpenAI mini alternative |
Frequently asked.
Gemini 3 Pro Preview pricing questions, with archive/deprecation status separated from token math.
Q · 01 What is Gemini 3 Pro Preview's API price? +
$2/M input and $12/M output. The archived higher prompt tier is $4/M input and $18/M output, with $0.4/M cached input.Q · 02 Is Gemini 3 Pro Preview still available? +
gemini-3-pro-preview was shut down on 2026-03-09. Use gemini-3-1-pro-preview for current traffic.Q · 03 Does prompt caching apply? +
$0.2/M for text, image, and video input. The calculator uses that live cache rate for the agentic blended estimate.Q · 04 How should I use this page? +
Q · 05 What about Batch and Flex pricing? +
Q · 06 How accurate is the tokenizer estimate? +
4.0 characters per token as a Gemini planning estimate. Exact billing can differ by language, media inputs, tool calls, and how Google tokenizes multimodal content.