Gemini 4 Hydrogen API pricing
Google Gemini charges $1.5 per million input tokens and $7.5 per million output tokens for Gemini 4 Hydrogen (gemini-4-hydrogen), and $0.075 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.00525, or $0.00263 through the batch API.
Gemini 4 Hydrogen price per million tokens
| Token type | Standard | Batch API |
|---|---|---|
| Input | $1.5 | $0.75 |
| Cached input | $0.075 | $0.0375 |
| Output | $7.5 | $3.75 |
API model id: gemini-4-hydrogen. Gemini 4 Hydrogen supports a 1.05M-token context window, up to 1.05M output tokens, image input, tool calling and reasoning.
What Gemini 4 Hydrogen costs per request
| Request | 1 request | 1,000 requests | 1M requests |
|---|---|---|---|
| Short chat message (300 in, 200 out) | $0.00195 | $1.95 | $1,950.00 |
| Typical request (1K in, 500 out) | $0.00525 | $5.25 | $5,250.00 |
| Long document summary (20K in, 1K out) | $0.0375 | $37.50 | $37,500.00 |
| Coding agent step (50K in, 2K out) | $0.09 | $90.00 | $90,000.00 |
At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words. Google Gemini counts tokens with its own tokenizer, so the same text can be a different number of tokens.
How Gemini 4 Hydrogen compares
- For a typical request, Gemini 4 Hydrogen is cheaper than 43% of the other models on apicost.app.
- GPT-4.1 from OpenAI costs $2 input and $8 output per million tokens, so a typical request is $0.006: 1.1× the price of Gemini 4 Hydrogen.
- Claude Sonnet 5 from Anthropic costs $2 input and $10 output per million tokens, so a typical request is $0.007: 1.3× the price of Gemini 4 Hydrogen.
- DeepSeek V4 Pro from DeepSeek costs $1.32 input and $3.96 output per million tokens, so a typical request is $0.0033: 1.6× cheaper than Gemini 4 Hydrogen.
Gemini 4 Hydrogen price history
Gemini 4 Hydrogen has cost $1.5 per million input tokens and $7.5 per million output tokens since it was added to the price list on November 14, 2026.
Every LLM API price increase, cut, new and retired model, dated: LLM API price changes.
Models with a similar price
| Model | Provider | Input / 1M | Cached input / 1M | Output / 1M | Typical request |
|---|---|---|---|---|---|
| Grok 4.5 | xAI | $2 | $0.3 | $6 | $0.005 |
| Grok 4.6 | xAI | $2 | $0.5 | $6 | $0.005 |
| Grok 4.7 | xAI | $2 | $0.5 | $6 | $0.005 |
| Mistral Medium | Mistral | $1.5 | $0.15 | $7.5 | $0.00525 |
| GPT-4.1 | OpenAI | $2 | $0.5 | $8 | $0.006 |
| o3 | OpenAI | $2 | $0.5 | $8 | $0.006 |
| Gemini 3.5 Flash | Google Gemini | $1.5 | $0.15 | $9 | $0.006 |
| Gemini Omni 1.1 Flash | Google Gemini | $1.5 | – | $9 | $0.006 |
Other Google Gemini models
- Gemini 2.5 Flash $0.3 / $2.5
- Gemini 2.5 Flash Lite $0.1 / $0.4
- Gemini 2.5 Pro $1.25 / $10
- Gemini 3 Flash Preview $0.5 / $3
- Gemini 3.1 Flash Lite $0.25 / $1.5
- Gemini 3.1 Pro Preview $2 / $12
- Gemini 3.5 Flash $1.5 / $9
- Gemini 3.5 Flash Lite $0.3 / $2.5
- Gemini 3.6 Flash $0.75 / $3.75
- Gemini 3.7 Flash $0.75 / $3.75
- Gemini 3.8 Flash $0.75 / $3.75
- Gemini 4 Argon $2 / $10
- Gemini 4 Carbon $2 / $10
- Gemini Omni 1.1 Flash $1.5 / $9
- Gemini Omni 1.2 Flash $1.5 / $9
Every Google Gemini model side by side, with batch, caching and long-context prices: Gemini API pricing (Google). Ways to pay less: batch API, prompt caching, the cheapest models.
Questions and answers
How much does the Gemini 4 Hydrogen API cost?
Google Gemini charges $1.5 per million input tokens and $7.5 per million output tokens for Gemini 4 Hydrogen (gemini-4-hydrogen), and $0.075 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.00525, or $0.00263 through the batch API.
Has the Gemini 4 Hydrogen API price changed?
No. Gemini 4 Hydrogen has cost $1.5 per million input tokens and $7.5 per million output tokens since it was added to the price list on November 14, 2026.
Is there a cheaper way to use Gemini 4 Hydrogen?
Yes. The Google Gemini batch API runs requests within 24 hours for $0.75 per million input tokens and $3.75 per million output tokens. Prompt caching lowers the price of repeated input to $0.075 per million tokens.
What is the context window of Gemini 4 Hydrogen?
Gemini 4 Hydrogen accepts up to 1,048,576 input tokens, roughly 786,000 words of English, and writes up to 1,048,576 output tokens per response. Filling the whole context window once costs $1.57 in input tokens.
Is Gemini 4 Hydrogen cheaper than GPT-4.1?
Yes. GPT-4.1 from OpenAI costs $2 input and $8 output per million tokens, so a typical request is $0.006: 1.1× the price of Gemini 4 Hydrogen.
Source: Google Gemini pricing, via the LiteLLM price list.