GPT-5 — Frontier reasoning model
OpenAI’s flagship model with adjustable reasoning effort, strong at coding, debugging, and planning. By OpenAI. Where it runs: API, Browser. Pricing: Pay per token, Subscription.
- Strength: Reasoning effort control
- Strength: Competitive price for a frontier model
- Watch out: High effort is slow; lower it for routine edits
- Best for Planning & architecture: High reasoning effort for architecture and algorithms.
- Best for Hard bugs: Strong at root-cause analysis.
- Best for Everyday coding: Lower effort settings make it fast enough for daily use.
- Best for Code review & PRs: Thorough reviews at high effort.
Frequently asked questions
What is GPT-5 best for?
Planning & architecture: High reasoning effort for architecture and algorithms. Hard bugs: Strong at root-cause analysis. Everyday coding: Lower effort settings make it fast enough for daily use. Code review & PRs: Thorough reviews at high effort.
How do I write better prompts for GPT-5?
Give GPT-5 a clear goal, the relevant files or context, constraints, and acceptance criteria. Pregoo's Prompt Builder scores your prompt and estimates its token cost.
What should I watch out for with GPT-5?
High effort is slow; lower it for routine edits.
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