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-4

OpenAI

GPT-4 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 77.7% across 12 benchmarks. It excels particularly in AI2 Reasoning Challenge (ARC) (96.3%), HellaSwag (95.3%), Uniform Bar Exam (90.0%). The model shows particular specialization in reasoning tasks with an average performance of 93.0%. The model is available through 2 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly.

OpenAI

GPT-4

OpenAI

2023-06-13

Anthropic

Claude Sonnet 4.5

Anthropic

2025-09-29

2 years newer

Pricing Comparison

Cost per million tokens (USD)

Anthropic

Claude Sonnet 4.5

$72.00 cheaper
Input:$3.00
Output:$15.00
OpenAI

GPT-4

Input:$30.00
Output:$60.00

Performance Metrics

Context window and performance specifications

Anthropic

Claude Sonnet 4.5

Larger context
Max Context:264.0K
OpenAI

GPT-4

Max Context:65.5K

Average performance across 21 common benchmarks

Anthropic

Claude Sonnet 4.5

Average Score:37.1%
OpenAI

GPT-4

+7.3%
Average Score:44.4%

Performance comparison across key benchmark categories

Anthropic

Claude Sonnet 4.5

math
+18.5%
87.0%
general
+1.8%
78.0%
code
50.0%
OpenAI

GPT-4

math
68.5%
general
76.2%
code
+17.0%
67.0%
Knowledge Cutoff
Training data recency comparison

GPT-4

2022-12-31

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-4

2 providers

Azure

Throughput: 104 tok/s
Latency: 0.3ms

OpenAI

Throughput: 100 tok/s
Latency: 0.5ms
Anthropic

Claude Sonnet 4.5

Avg Score:37.1%
Providers:2
OpenAI

GPT-4

+7.3%
Avg Score:44.4%
Providers:2