This model is deprecated. We only continue performance benchmarking for the default 10k input token workload. Results for other workloads are historical and no longer updated.
Anthropic has launched a newer release, Claude Sonnet 4.6. We suggest considering it instead.
Claude 4.5 Sonnet (Reasoning) API Provider Benchmarking & Analysis
This analysis is intended to support you in choosing the best API provider of Claude 4.5 Sonnet (Reasoning) for your use-case.
Fastest
Amazon
Anthropic
Azure
Google VertexOutput speed
Total 4 providers
Lowest Latency
Google VertexAmazonAnthropicAzureTime to first answer token
Total 4 providers
Lowest Price
AnthropicGoogle VertexAmazonAzureBlended price (per 1M tokens)
Total 4 providers
Claude 4.5 Sonnet is available through 4 API providers, each offering different performance characteristics and pricing. Below is a comparison of the key metrics across providers.
- For output speed, the top providers are Amazon (51.4 t/s), Anthropic (47.4 t/s), and Azure (45.9 t/s).
- For latency, Google Vertex (11.42s), Amazon (13.42s), and Anthropic (14.38s) offer the lowest time to first answer token.
- For pricing, Anthropic (2.31), Google Vertex (2.31), and Amazon (2.31) offer the lowest blended prices per 1M tokens.
Highlights
Pricing
Pricing: Cache Hit, Input, and Output
Pricing: Blended Price
Pricing: Cache Discount
Output Speed vs. Price
Speed
Measured by Output Speed (tokens per second)
Output Speed: Claude 4.5 Sonnet (Reasoning)
Latency vs. Output Speed
Latency
Measured by Time (seconds) to First Token
Time to First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Key Comparison Metrics & API Features
Frequently Asked Questions
Common questions about Claude 4.5 Sonnet (Reasoning) providers
Claude 4.5 Sonnet (Reasoning) is available through 4 API providers: Anthropic, Google Vertex, Amazon, and Azure. Each provider offers different performance characteristics and pricing.
Claude 4.5 Sonnet (Reasoning) is currently available through 4 API providers that we benchmark and track.
The providers with the lowest time to first answer token for Claude 4.5 Sonnet (Reasoning) are Google Vertex (11.42s), Amazon (13.42s), and Anthropic (14.38s). Lower latency means faster initial response time.
The most affordable providers for Claude 4.5 Sonnet (Reasoning) by blended price are Anthropic ($2.31 per 1M tokens), Google Vertex ($2.31 per 1M tokens), and Amazon ($2.31 per 1M tokens). Blended price uses a 7:2:1 cache hit/input/output token ratio.
The providers with the lowest input token pricing for Claude 4.5 Sonnet (Reasoning) are Anthropic ($3.00 per 1M input tokens), Google Vertex ($3.00 per 1M input tokens), and Amazon ($3.00 per 1M input tokens).
The providers with the lowest output token pricing for Claude 4.5 Sonnet (Reasoning) are Anthropic ($15.00 per 1M output tokens), Google Vertex ($15.00 per 1M output tokens), and Amazon ($15.00 per 1M output tokens).
2 of 4 providers support JSON mode for Claude 4.5 Sonnet (Reasoning): Anthropic and Google Vertex.
All 4 providers of Claude 4.5 Sonnet (Reasoning) support function calling (tool use).
The best provider for Claude 4.5 Sonnet (Reasoning) depends on your priorities: Amazon offers the highest output speed, Google Vertex has the lowest latency, and Anthropic provides the most competitive pricing.
When choosing a provider for Claude 4.5 Sonnet (Reasoning), consider: output speed (for throughput-intensive tasks), latency (for interactive applications requiring quick first responses), pricing (for cost-sensitive workloads), and API features like JSON mode or function calling.
Yes, provider performance can vary over time due to infrastructure changes, load balancing, and updates. We continuously benchmark all providers and display historical performance trends in the "Over Time" charts.
For information about Claude 4.5 Sonnet (Reasoning)'s intelligence, capabilities, modalities, and how it compares to other models, see the model overview page. View model overview