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-5 Codex

OpenAI

GPT-5 Codex is a language model developed by OpenAI. It achieves strong performance with an average score of 74.5% across 1 benchmarks. Notable strengths include SWE-Bench Verified (74.5%). Released in 2025, it represents OpenAI's latest advancement in AI technology.

OpenAI

GPT-5 Codex

OpenAI

2025-09-15

Anthropic

Claude Sonnet 4.5

Anthropic

2025-09-29

14 days newer

Performance Metrics

Context window and performance specifications

Anthropic

Claude Sonnet 4.5

Larger context
Max Context:264.0K
OpenAI

GPT-5 Codex

Max Context:-

Average performance across 10 common benchmarks

Anthropic

Claude Sonnet 4.5

+70.6%
Average Score:78.0%
OpenAI

GPT-5 Codex

Average Score:7.4%

Performance comparison across key benchmark categories

Anthropic

Claude Sonnet 4.5

general
+3.5%
78.0%
OpenAI

GPT-5 Codex

general
74.5%
Knowledge Cutoff
Training data recency comparison

GPT-5 Codex

2024-09-30

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-5 Codex

0 providers
Anthropic

Claude Sonnet 4.5

+70.6%
Avg Score:78.0%
Providers:2
OpenAI

GPT-5 Codex

Avg Score:7.4%
Providers:0