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Model Comparison

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

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

o3-pro

OpenAI

o3-pro is a multimodal language model developed by OpenAI. It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.

OpenAI

o3-pro

OpenAI

2025-06-10

OpenAI

GPT-5 Codex

OpenAI

2025-09-15

3 months newer

Performance Metrics

Context window and performance specifications

OpenAI

GPT-5 Codex

Max Context:-
OpenAI

o3-pro

Larger context
Max Context:300.0K
Knowledge Cutoff
Training data recency comparison

o3-pro

2024-05-31

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

OpenAI

GPT-5 Codex

0 providers
OpenAI

o3-pro

1 providers

OpenAI

Throughput: 25 tok/s
Latency: 30ms
OpenAI

GPT-5 Codex

Avg Score:0.0%
Providers:0
OpenAI

o3-pro

Avg Score:0.0%
Providers:1