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 Results for other workloads are historical and no longer updated.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 model, Claude Sonnet 4.6 (max). We suggest considering it instead.
For more information, see comparison of Claude Sonnet 4.6 (max) to other models and API provider benchmarks for Claude Sonnet 4.6 (max).
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
Google Vertex
AzureOutput speed
Total 4 providers
Lowest Latency
AmazonAzureGoogle VertexAnthropicTime 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 (45.1 t/s), Anthropic (41.7 t/s), and Google Vertex (40.1 t/s).
- For latency, Amazon (8.46s), Azure (10.63s), and Google Vertex (13.02s) 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.
- Amazon offers the best performance with both the highest speed and lowest latency. For cost optimization, Anthropic provides the most competitive pricing.
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 fastest providers for Claude 4.5 Sonnet (Reasoning) by output speed are Amazon (45.1 t/s), Anthropic (41.7 t/s), and Google Vertex (40.1 t/s). Output speed measures how quickly tokens are generated after the model starts responding.
The providers with the lowest time to first answer token for Claude 4.5 Sonnet (Reasoning) are Amazon (8.46s), Azure (10.63s), and Google Vertex (13.02s). 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).
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