Model Comparison

Comprehensive side-by-side analysis of model capabilities and performance

Anthropic

Claude Sonnet 4.5

Anthropic

Claude Sonnet 4.5 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 78.0% across 10 benchmarks. It excels particularly in Tau2 Telecom (98.0%), MMMLU (89.1%), AIME 2025 (87.0%). It supports a 264K token context window for handling large documents. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Anthropic's latest advancement in AI technology.

OpenAI

GPT-4o

OpenAI

GPT-4o is a multimodal language model developed by OpenAI. The model shows competitive results across 39 benchmarks. It excels particularly in AI2D (94.2%), DocVQA (92.8%), ChartQA (85.7%). It supports a 144K token context window for handling large documents. The model is available through 3 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2024, it represents OpenAI's latest advancement in AI technology.

OpenAI

GPT-4o

OpenAI

2024-08-06

Anthropic

Claude Sonnet 4.5

Anthropic

2025-09-29

1 year newer

Pricing Comparison

Cost per million tokens (USD)

Anthropic

Claude Sonnet 4.5

Input:$3.00
Output:$15.00
OpenAI

GPT-4o

$5.50 cheaper
Input:$2.50
Output:$10.00

Performance Metrics

Context window and performance specifications

Anthropic

Claude Sonnet 4.5

Larger context
Max Context:264.0K
OpenAI

GPT-4o

Max Context:144.4K

Average performance across 43 common benchmarks

Anthropic

Claude Sonnet 4.5

Average Score:18.1%
OpenAI

GPT-4o

+29.8%
Average Score:47.9%

Performance comparison across key benchmark categories

Anthropic

Claude Sonnet 4.5

math
+25.6%
87.0%
agents
+35.8%
82.8%
general
+25.5%
78.0%
vision
+13.5%
77.8%
code
50.0%
OpenAI

GPT-4o

math
61.4%
agents
47.1%
general
52.5%
vision
64.3%
code
+5.9%
55.9%
Knowledge Cutoff
Training data recency comparison

Claude Sonnet 4.5

2025-01-31

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

Anthropic

Claude Sonnet 4.5

2 providers

Anthropic

Throughput: 42 tok/s
Latency: 0.4ms

ZeroEval

Throughput: 42 tok/s
Latency: 0.4ms
OpenAI

GPT-4o

3 providers

Azure

Throughput: 99 tok/s
Latency: 0.53ms

ZeroEval

Throughput: 99 tok/s
Latency: 0.53ms

OpenAI

Throughput: 132 tok/s
Latency: 0.5ms
Anthropic

Claude Sonnet 4.5

Avg Score:18.1%
Providers:2
OpenAI

GPT-4o

+29.8%
Avg Score:47.9%
Providers:3