---
title: "claude-sonnet-4-5@20250929 - Model Details & Comparison"
description: "claude-sonnet-4-5@20250929 from Google Vertex AI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models."
url: "https://www.getmaxim.ai/bifrost/model-library/compare/vertex_ai/claude-sonnet-4-5-20250929"
markdown: "https://www.getmaxim.ai/bifrost/model-library/compare/vertex_ai/claude-sonnet-4-5-20250929.md"
---

# claude-sonnet-4-5@20250929 - Model Details & Comparison

> claude-sonnet-4-5@20250929 from Google Vertex AI: capabilities, context limits, pricing, and side-by-side comparisons with alternative models.

## Important Links

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## About claude-sonnet-4-5@20250929

claude-sonnet-4-5@20250929 is a chat model from Vertex AI, one of 120 chat models they offer. It is priced at $3.00 per 1M input tokens and $15.00 per 1M output tokens, ranking 3113 out of 3665 chat models by cost and cheaper than 15% of models in this category. claude-sonnet-4-5@20250929 supports vision, function calling, reasoning, prompt caching, structured output. It accepts up to 200K input tokens.

## Specifications

- **Google Vertex AI Provider.**
- **Chat Mode.**
- **200,000 Max Input Tokens.**
- **64,000 Max Output Tokens.**
- **64,000 Max Tokens.**
- **$3.00 / 1M tokens Input Price.**
- **$15.00 / 1M tokens Output Price.**

## Capabilities

claude-sonnet-4-5@20250929 supports: Function Calling, Vision, Reasoning, Prompt Caching, Response Schema, Tool Choice, PDF Input, Computer Use.

## claude-sonnet-4-5@20250929 Pricing Overview

At $3.00 per 1M input tokens and $15.00 per 1M output tokens, claude-sonnet-4-5@20250929 ranks 3113 out of 3665 chat models by input cost. It is more expensive compared to the median of $0.60 for chat models, and is cheaper than 15% of models in this category.

claude-sonnet-4-5@20250929 is one of 120 Vertex AI chat models, with support for vision, function calling, reasoning, prompt caching, structured output.

## Models to Compare

Alternatives to claude-sonnet-4-5@20250929 with comparable capabilities.

| Model | Provider | Input $/1M | Output $/1M |
| --- | --- | --- | --- |
| anthropic.claude-3-7-sonnet-20240620-v1:0 | AWS Bedrock | $3.00 | $15.00 |
| anthropic.claude-3-7-sonnet-20250219-v1:0 | AWS Bedrock | $3.00 | $15.00 |
| anthropic.claude-sonnet-4-6 | AWS Bedrock | $3.00 | $15.00 |
| global.anthropic.claude-sonnet-4-6 | AWS Bedrock | $3.00 | $15.00 |
| us.anthropic.claude-sonnet-4-6 | AWS Bedrock | $3.30 | $16.50 |

- [Compare anthropic.claude-3-7-sonnet-20240620-v1:0](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock/anthropic.claude-3-7-sonnet-20240620-v1-0.md)
- [Compare anthropic.claude-3-7-sonnet-20250219-v1:0](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock/anthropic.claude-3-7-sonnet-20250219-v1-0.md)
- [Compare anthropic.claude-sonnet-4-6](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock/anthropic.claude-sonnet-4-6.md)
- [Compare global.anthropic.claude-sonnet-4-6](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock/global.anthropic.claude-sonnet-4-6.md)
- [Compare us.anthropic.claude-sonnet-4-6](https://www.getmaxim.ai/bifrost/model-library/compare/bedrock/us.anthropic.claude-sonnet-4-6.md)

## Related Resources

- [Calculate claude-sonnet-4-5@20250929 costs](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/vertex_ai/model/claude-sonnet-4-5-20250929.md)
- [All Vertex AI pricing](https://www.getmaxim.ai/bifrost/llm-cost-calculator/provider/vertex_ai.md)

## FAQ

### Is claude-sonnet-4-5@20250929 cheaper than anthropic.claude-3-7-sonnet-20240620-v1:0?

Yes. claude-sonnet-4-5@20250929 costs $3.00 per 1M input tokens compared to anthropic.claude-3-7-sonnet-20240620-v1:0's $3.00 per 1M input tokens, making it 0% more affordable. Both are chat models and share support for vision, function calling, reasoning, prompt caching, structured output.

### How does claude-sonnet-4-5@20250929 pricing compare to the average chat model?

claude-sonnet-4-5@20250929 input pricing is $3.00 per 1M tokens, which is 400% above the median of $0.60 for chat models. It ranks 3113 out of 3665 chat models by input cost, making it cheaper than 15% of models in this category. For output, it costs $15.00 per 1M tokens compared to the median of $1.70.

### What makes claude-sonnet-4-5@20250929 different from other Vertex AI models?

Among Vertex AI's 120 chat models, claude-sonnet-4-5@20250929 ranks 95 by input cost.

### What are the best alternatives to claude-sonnet-4-5@20250929?

The most comparable chat models to claude-sonnet-4-5@20250929 are: anthropic.claude-3-7-sonnet-20240620-v1:0 from AWS Bedrock ($3.00/1M input tokens); anthropic.claude-3-7-sonnet-20250219-v1:0 from AWS Bedrock ($3.00/1M input tokens); anthropic.claude-sonnet-4-6 from AWS Bedrock ($3.00/1M input tokens); global.anthropic.claude-sonnet-4-6 from AWS Bedrock ($3.00/1M 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 claude-sonnet-4-5@20250929 costs?

claude-sonnet-4-5@20250929 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 $3.00 and generating 1M output tokens costs $15.00.

## Related Resources

- [Google Vertex AI models](https://www.getmaxim.ai/bifrost/model-library/provider/vertex_ai.md)
- [Model library](https://www.getmaxim.ai/bifrost/model-library.md)
- [LLM cost calculator](https://www.getmaxim.ai/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)
- [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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*This is a markdown version of [https://www.getmaxim.ai/bifrost/model-library/compare/vertex_ai/claude-sonnet-4-5-20250929](https://www.getmaxim.ai/bifrost/model-library/compare/vertex_ai/claude-sonnet-4-5-20250929) for AI/LLM consumption.*