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Model Comparison

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

Anthropic

Claude Opus 4

Anthropic

Claude Opus 4 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 64.6% across 9 benchmarks. It excels particularly in MMMLU (88.8%), TAU-bench Retail (81.4%), GPQA (79.6%). The model shows particular specialization in general tasks with an average performance of 80.3%. It supports a 328K token context window for handling large documents. The model is available through 4 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.

Anthropic

Claude Opus 4

Anthropic

2025-05-22

OpenAI

GPT-5 Codex

OpenAI

2025-09-15

3 months newer

Performance Metrics

Context window and performance specifications

Anthropic

Claude Opus 4

Larger context
Max Context:328.0K
OpenAI

GPT-5 Codex

Max Context:-

Average performance across 1 common benchmarks

Anthropic

Claude Opus 4

Average Score:72.5%
OpenAI

GPT-5 Codex

+2.0%
Average Score:74.5%

Performance comparison across key benchmark categories

Anthropic

Claude Opus 4

general
+5.8%
80.3%
OpenAI

GPT-5 Codex

general
74.5%
Benchmark Scores - Detailed View
Side-by-side comparison of all benchmark scores
Knowledge Cutoff
Training data recency comparison

GPT-5 Codex

2024-09-30

More recent knowledge cutoff means awareness of newer technologies and frameworks

Provider Availability & Performance

Available providers and their performance metrics

Anthropic

Claude Opus 4

4 providers

Google

Throughput: 42 tok/s
Latency: 0.4ms

Bedrock

Throughput: 120 tok/s
Latency: 0.5ms

Anthropic

Throughput: 100 tok/s
Latency: 0.5ms

ZeroEval

Throughput: 42 tok/s
Latency: 0.4ms
OpenAI

GPT-5 Codex

0 providers
Anthropic

Claude Opus 4

Avg Score:72.5%
Providers:4
OpenAI

GPT-5 Codex

+2.0%
Avg Score:74.5%
Providers:0