Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...
Model details →Google: Gemini 3.1 Pro Preview Custom Tools vs OpenAI: GPT Audio
Google: Gemini 3.1 Pro Preview Custom Tools wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...
Model details →Side-by-side comparison
| Capability | Google: Gemini 3.1 Pro Preview Custom Tools | OpenAI: GPT Audio | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1.0M | 128K | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $2.50 | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $12.00 | $10.00 | 🏆 OpenAI: GPT Audio |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | — | 🏆 Google: Gemini 3.1 Pro Preview Custom Tools |
Frequently asked questions
Is Google: Gemini 3.1 Pro Preview Custom Tools better than OpenAI: GPT Audio?
Google: Gemini 3.1 Pro Preview Custom Tools wins on 4 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Gemini 3.1 Pro Preview Custom Tools and OpenAI: GPT Audio?
Input: $2.00 vs $2.50 per 1M tokens. Output: $12.00 vs $10.00 per 1M tokens.
What context windows do Google: Gemini 3.1 Pro Preview Custom Tools and OpenAI: GPT Audio support?
Google: Gemini 3.1 Pro Preview Custom Tools supports up to 1.0M tokens. OpenAI: GPT Audio supports up to 128K tokens.
Do both Google: Gemini 3.1 Pro Preview Custom Tools and OpenAI: GPT Audio support tool calling?
Google: Gemini 3.1 Pro Preview Custom Tools: yes. OpenAI: GPT Audio: yes.