ApX logoApX logo

GPT-5 Pro

Parameters

Undisclosed

Context Length

400K

Modality

Text

Architecture

Undisclosed

License

Proprietary

Release Date

7 Aug 2025

Knowledge Cutoff

Aug 2025

API Pricing (per 1M)

Input: $0.63 · Output: $5.00

Evaluation Benchmarks

Rank

#110

BenchmarkScoreRank

Web Development

WebDev Arena
medium

1418

75

General Text

Text Arena
high

1435

89

high

0.38

110

Intelligence Index

Artificial Analysis
low

0.21

158

Rankings

Overall Rank

#110

Coding Rank

#101

About GPT-5 Pro

GPT-5 Pro is OpenAI's flagship frontier reasoning model engineered with deep test-time compute for high-stakes mathematical and scientific challenges. It features configurable reasoning effort controls and a 400K token context window.

Technical Specifications

Architecture specifications are undisclosed for proprietary models.

About GPT-5

OpenAI's latest generation of language models featuring advanced reasoning capabilities, extended context windows up to 400K tokens, and specialized variants for coding, general intelligence, and efficiency. GPT-5 series introduces improved thinking modes, superior performance across benchmarks, and variants optimized for different use cases from high-capacity Pro models to efficient Nano models. Features native multimodal understanding, enhanced mathematical reasoning, and state-of-the-art coding abilities through Codex variants.


Other GPT-5 Models