GPT-5 — reviews, specs & pricing

OpenAI's unified flagship model with built-in reasoning, a 400k token context window and frontier coding performance.

Summary

OpenAI's flagship unified model that combines fast responses with built-in deep reasoning, replacing the separate GPT-4o and o-series split. It set new state-of-the-art results on coding, math and agentic benchmarks at launch.

Sample use case

General-purpose assistant work plus coding and agentic tasks that need strong reasoning.

Specifications

  • Provider: openai
  • License: closed
  • Context: 400k tokens
  • Input price: $1.25/M tok
  • Output price: $10/M tok
  • Released: 2025-08-07

Average rating 0.0 from 0 community reviews on Reviuws.

Frequently asked questions

What is GPT-5?

OpenAI's flagship unified model that combines fast responses with built-in deep reasoning, replacing the separate GPT-4o and o-series split. It set new state-of-the-art results on coding, math and agentic benchmarks at launch.

How much does GPT-5 cost?

GPT-5 costs $1.25 per million input tokens and $10 per million output tokens.

Is GPT-5 open source?

GPT-5 is released under the closed license.