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OpenAIProprietary
GPT-5-Pro
GPT-5-Pro is a foundational model developed by OpenAI. It is positioned as a reasoning model and is equipped with a 400K extensive context window.
Parameters
Undisclosed
Context Window
400K
License
Proprietary
Release Date
2025-08-07
API Pricing
API pricing for this model is not yet available
Strengths
- ・Advanced reasoning capabilities
- ・400K long context understanding
- ・Developed by OpenAI
Weaknesses
- ・License is non-public
- ・Closed development process
- ・Source code is not released
Use Cases
- ・Complex logical reasoning tasks
- ・Analyzing lengthy documents
- ・Advanced problem-solving
Deep Analysis
Release Date
August 2025
Context Window
400K tokens
Pricing
$5.00 / $30.00 per 1M tokens
Strengths
- ・Extended thinking mode
- ・Better on hard problems
- ・400K context window
Weaknesses
- ・Significantly more expensive
- ・Slower due to extended thinking
- ・Superseded by GPT-5.4/5.5 Pro
Competitor Comparison
| Model | SWE | GPQA | Price |
|---|---|---|---|
| GPT-5 | 74.9% | 87.3% | $1.25/$10 |
| o3 | 69.1% | 83.3% | $2/$8 |
GPT-5 Pro is the enhanced reasoning variant with extended thinking capabilities.
Sources
Analysis generated: 2026-05-24