Hard facts side by side: free tiers, prices, limits, SDKs and privacy. Every value links to the official page it came from and is re-checked every week.
| Fact |  Google Gemini API |
|---|---|
| Free tier | Yes Free of charge on Flash models (not Pro); free-tier content is used to improve products. Source, Sep 29, 2026 |
| Starting price | $0.75 per 1M input tokens Gemini 3.8 Flash, $3.75 output; rises to $1.50/$7.50 on Jan 1, 2027. Source, Sep 29, 2026 |
| Size limit | 1M token context Gemini 3.8 Flash: 1,048,576 input tokens, 65,536 output tokens. Source, Sep 29, 2026 |
| Official SDKs | Python |
| Trains on your data | No Paid tier prompts and responses are not used to improve products; free tier data is. Source, Sep 29, 2026 |
|---|
| EU hosting | Yes EU multi-region endpoints via Google Cloud (Gemini Enterprise Agent Platform), not AI Studio. Source, Sep 29, 2026 |
|---|
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