AI Model Atlas / Google
Gemini 3.8 Flash
One million input tokens cost $0.83 and one million output tokens $4.13. Context window: 1M tokens, about 1,748 A4 pages.
What it costs in practice
Pricing per million tokens doesn't mean anything to anyone, so I convert it to three tasks that people actually give to models. The usage assumptions are listed for each row so you can verify them.
| Task | Input | Output | Cost |
|---|---|---|---|
| 1500-word articlebrief plus finished text in English | 1,500 tokens | 2,200 tokens | $0.01 |
| 100 chat queries700 tokens per question and 400 per answer | 70,000 tokens | 40,000 tokens | $0.22 |
| Hour of work with an agentagent reads repository and writes fixes | 250,000 tokens | 30,000 tokens | $0.33 |
Technical details
| Provider | |
| Modalities | text + image + video + files + audio → text |
| Context window | 1M tokens (~1,748 A4 pages) |
| Maximum response | 66k tokens |
| Step-by-step reasoning | yes |
| Tool calling | yes |
| Forced JSON format | yes |
| Knowledge cutoff | not specified |
| Cache read | $0.083 per million |
| Content moderation | no extra filter |
How it compares to the rest
The database contains 469 models. In terms of input pricing Gemini 3.8 Flash is more expensive than 61 percent of paid models. A longer context window is available in 54 models.
Input price history
2026-09-08 · $0.752026-11-11 · $0.83
The chart shows the price of a million input tokens on consecutive measurement days. History starts on the day I launched the atlas and grows with each day. I don't backfill data.
Alternatives at a similar price
Models from other providers whose cost for the same article comes out closest.
| Model | Input / M | Output / M | 1500-word article | Context |
|---|---|---|---|---|
| o3 (batch)OpenAI | $1.00 | $4.00 | $0.01 | 200k |
| GPT-4.1 (batch)OpenAI | $1.00 | $4.00 | $0.01 | 1M |
| ERNIE-Light-DT-1.0Baidu | $1.13 | $3.94 | $0.01 | 1M |
| Sakana NamazuSakana | $0.95 | $4.00 | $0.01 | 262k |
Compare Gemini 3.8 Flash with another model or go back to the full database 469 models.