Lowest price
Choose Gemini 3.8 Live
Gemini 3.8 Live costs $3.00 / 1M audio tokens, against $10.00 / 1M audio tokens for GPT-Realtime-2.1 Mini.
Gemini 3.8 Live vs GPT-Realtime-2.1 Mini: price, context and capabilities
Choose Gemini 3.8 Live for the lowest price; on the other points the two are level or the data is missing.
In short
- Gemini 3.8 Live is 70% cheaper than GPT-Realtime-2.1 Mini at the headline price ($3.00 / 1M audio tokens vs $10.00 / 1M audio tokens).
- Gemini 3.8 Live reads more per request: 131k tokens against 128k.
- Only Gemini 3.8 Live offers video input.
- Only GPT-Realtime-2.1 Mini offers reasoning.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Specifications side by side
| Gemini 3.8 Live | GPT-Realtime-2.1 Mini | |
|---|---|---|
| Provider | OpenAI | |
| Category | Voice and realtime | Voice and realtime |
| Status | Generally available | Generally available |
| Headline price | $3.00 / 1M audio tokens | $10.00 / 1M audio tokens |
| Context window | 131k | 128k |
| Max output | 66k | 32k |
| Released | September 2026 | No data |
| Knowledge cutoff | No data | September 2024 |
| Licence | Proprietary | Proprietary |
| Capabilities | Audio input, Video input, Tool calling | Audio input, Reasoning, Tool calling |
| API model id | gemini-3.8-live | gpt-realtime-2.1-mini |
Frequently asked questions
Should I choose Gemini 3.8 Live or GPT-Realtime-2.1 Mini?
Choose Gemini 3.8 Live for the lowest price; on the other points the two are level or the data is missing.
Which is cheaper, Gemini 3.8 Live or GPT-Realtime-2.1 Mini?
Gemini 3.8 Live is 70% cheaper than GPT-Realtime-2.1 Mini at the headline price ($3.00 / 1M audio tokens vs $10.00 / 1M audio tokens).
Which has the larger context window, Gemini 3.8 Live or GPT-Realtime-2.1 Mini?
Gemini 3.8 Live reads more per request: 131k tokens against 128k.
What is the difference between Gemini 3.8 Live and GPT-Realtime-2.1 Mini?
Gemini 3.8 Live is made by Google and GPT-Realtime-2.1 Mini by OpenAI. Gemini 3.8 Live is 70% cheaper than GPT-Realtime-2.1 Mini at the headline price ($3.00 / 1M audio tokens vs $10.00 / 1M audio tokens). Gemini 3.8 Live reads more per request: 131k tokens against 128k. Only Gemini 3.8 Live offers video input. Only GPT-Realtime-2.1 Mini offers reasoning.