Very long inputs
Choose Gemini 3.8 Live
Gemini 3.8 Live reads up to 131k tokens per request, against 32k for GPT-4o Realtime.
Gemini 3.8 Live vs GPT-4o Realtime: price, context and capabilities
Choose Gemini 3.8 Live for very long inputs and the latest release; on the other points the two are level or the data is missing.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Gemini 3.8 Live reads more per request: 131k tokens against 32k.
- Gemini 3.8 Live is the newer model (September 2026, against Oct 1, 2024).
- Only Gemini 3.8 Live offers video input, tool calling.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Latest release
Choose Gemini 3.8 Live
Gemini 3.8 Live is the newer release (September 2026, against Oct 1, 2024 for GPT-4o Realtime).
Specifications side by side
| Gemini 3.8 Live | GPT-4o Realtime | |
|---|---|---|
| Provider | OpenAI | |
| Category | Voice and realtime | Voice and realtime |
| Status | Generally available | Deprecated |
| Headline price | $3.00 / 1M audio tokens | No data |
| Context window | 131k | 32k |
| Max output | 66k | 4k |
| Released | September 2026 | Oct 1, 2024 |
| Knowledge cutoff | No data | October 2023 |
| Licence | Proprietary | Proprietary |
| Capabilities | Audio input, Video input, Tool calling | Audio input |
| API model id | gemini-3.8-live | gpt-4o-realtime-preview |
Frequently asked questions
Should I choose Gemini 3.8 Live or GPT-4o Realtime?
Choose Gemini 3.8 Live for very long inputs and the latest release; on the other points the two are level or the data is missing.
Which is cheaper, Gemini 3.8 Live or GPT-4o Realtime?
A price comparison is not possible: one of them has no comparable published price.
Which has the larger context window, Gemini 3.8 Live or GPT-4o Realtime?
Gemini 3.8 Live reads more per request: 131k tokens against 32k.
What is the difference between Gemini 3.8 Live and GPT-4o Realtime?
Gemini 3.8 Live is made by Google and GPT-4o Realtime by OpenAI. A price comparison is not possible: one of them has no comparable published price. Gemini 3.8 Live reads more per request: 131k tokens against 32k. Gemini 3.8 Live is the newer model (September 2026, against Oct 1, 2024). Only Gemini 3.8 Live offers video input, tool calling.
Which is newer, Gemini 3.8 Live or GPT-4o Realtime?
Gemini 3.8 Live was released on September 2026 and GPT-4o Realtime on Oct 1, 2024.