---
title: "gemini-2.5-pro-tts - Model Details & Comparison"
description: "gemini-2.5-pro-tts from Google Vertex AI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-2.5-pro-tts"
markdown: "https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/vertex_ai/gemini-2.5-pro-tts.md"
---

# gemini-2.5-pro-tts - Model Details & Comparison

> gemini-2.5-pro-tts from Google Vertex AI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

- [View MCP Gateway](https://www.getmaxim.ai/resources/mcp-gateway.md)
- [Features](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/#features)
- [Enterprise](https://www.getmaxim.ai/enterprise)
- [Pricing](https://www.getmaxim.ai/pricing.md)
- [Docs](https://docs.getbifrost.ai)
- [GitHub](https://github.com/maximhq/bifrost)
- [Book a Demo](https://www.getmaxim.ai/book-a-demo)

## About gemini-2.5-pro-tts

gemini-2.5-pro-tts is an audio speech model from Vertex AI, one of 6 audio speech models they offer. It is priced at $1.00 per 1M input tokens and $20.00 per 1M output tokens, ranking 14 out of 16 audio speech models by cost and cheaper than 13% of models in this category.

## Specifications

- **Google Vertex AI Provider.**
- **Audio speech Mode.**
- **$1.00 / 1M tokens Input Price.**
- **$20.00 / 1M tokens Output Price.**

## gemini-2.5-pro-tts Pricing Overview

At $1.00 per 1M input tokens and $20.00 per 1M output tokens, gemini-2.5-pro-tts ranks 14 out of 16 audio speech models by input cost. It is more expensive compared to the median of $0.60 for audio speech models, and is cheaper than 13% of models in this category.

## Models to Compare

Alternatives to gemini-2.5-pro-tts with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| gemini-3.1-flash-tts-preview | Google Gemini | $1.00 | $20.00 |
| gpt-4o-mini-tts | Azure | $0.60 | $10.00 |
| gemini-2.5-flash-preview-tts | Google Gemini | $0.50 | $10.00 |
| gpt-4o-mini-tts | OpenAI | $0.60 | $10.00 |
| gpt-4o-mini-tts-2025-03-20 | OpenAI | $0.60 | $10.00 |

- [Compare gemini-3.1-flash-tts-preview](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/gemini/gemini-3.1-flash-tts-preview.md)
- [Compare gpt-4o-mini-tts](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/azure/gpt-4o-mini-tts.md)
- [Compare gemini-2.5-flash-preview-tts](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/gemini/gemini-2.5-flash-preview-tts.md)
- [Compare gpt-4o-mini-tts](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-4o-mini-tts.md)
- [Compare gpt-4o-mini-tts-2025-03-20](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/compare/openai/gpt-4o-mini-tts-2025-03-20.md)

## Related Resources

- [Calculate gemini-2.5-pro-tts costs](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/vertex_ai/model/gemini-2.5-pro-tts.md)
- [All Vertex AI pricing](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator/provider/vertex_ai.md)

## FAQ

### Is gemini-2.5-pro-tts cheaper than gemini-3.1-flash-tts-preview?

No. gemini-2.5-pro-tts costs $1.00 per 1M input tokens while gemini-3.1-flash-tts-preview costs $1.00 per 1M input tokens, making gemini-3.1-flash-tts-preview 0% more affordable for input. However, gemini-2.5-pro-tts may offer different capabilities or performance characteristics that justify the price difference.

### How does gemini-2.5-pro-tts pricing compare to the average audio speech model?

gemini-2.5-pro-tts input pricing is $1.00 per 1M tokens, which is 67% above the median of $0.60 for audio speech models. It ranks 14 out of 16 audio speech models by input cost, making it cheaper than 13% of models in this category. For output, it costs $20.00 per 1M tokens compared to the median of $10.00.

### What makes gemini-2.5-pro-tts different from other Vertex AI models?

Among Vertex AI's 6 audio speech models, gemini-2.5-pro-tts ranks 6 by input cost.

### What are the best alternatives to gemini-2.5-pro-tts?

The most comparable audio speech models to gemini-2.5-pro-tts are: gemini-3.1-flash-tts-preview from Google Gemini ($1.00/1M input tokens); gpt-4o-mini-tts from Azure ($0.60/1M input tokens); gemini-2.5-flash-preview-tts from Google Gemini ($0.50/1M input tokens); gpt-4o-mini-tts from OpenAI ($0.60/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.

### How do I calculate gemini-2.5-pro-tts costs?

gemini-2.5-pro-tts is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $1.00 and generating 1M output tokens costs $20.00.

## Related Resources

- [Google Vertex AI models](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library/provider/vertex_ai.md)
- [Model library](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/model-library.md)
- [LLM cost calculator](https://maxim-root-proxy-preview.getmaxim.workers.dev/bifrost/llm-cost-calculator.md)
- [Docs: Bifrost docs](https://docs.getbifrost.ai)
- [GitHub: maximhq/bifrost](https://github.com/maximhq/bifrost)
- [Pricing: Bifrost pricing](https://www.getmaxim.ai/pricing.md)
- [Enterprise: Bifrost enterprise](https://www.getmaxim.ai/enterprise)
- [Book a Demo: Bifrost demo](https://www.getmaxim.ai/book-a-demo)
- [Resources: Bifrost resources](https://www.getmaxim.ai/resources.md)

---

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