Costs
OpenAI API Pricing Calculator
Estimate text-token costs across OpenAI model families.
Browse practical browser tools for planning AI work. Explore verified information, compare options and open each tool with its assumptions explained.
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Access
GPT-6 access self-check
Check published product, plan, country or region rules.
Model comparison
GPT-6 vs GPT-5 comparison
Compare published capabilities, constraints and token costs.
Model comparison
GPT-6 Astra vs Sol vs Luna
Compare the three GPT-6 models using your own workload.
Costs
OpenAI Prompt Caching Calculator
Find out when reusing a prompt prefix saves money.
Costs
OpenAI Token Counter
Count pasted text, reserve room for the answer and estimate its cost.
Access
ChatGPT Dots Availability and Access Checker
Pro users over 18 outside the EEA, UK and Switzerland, plus Business Premium and Enterprise users, have published Dots routes. Check your setup below.
Action rules
ChatGPT Dots Custom Rules Generator
Build ChatGPT Dots custom rules for the actions you care about. Define the people, resources and scope, then copy an editable description and select an action policy.
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Costs
OpenAI API Pricing Calculator
Estimate text-token costs across OpenAI model families.
Access
GPT-6 access self-check
Check published product, plan, country or region rules.
Model comparison
GPT-6 vs GPT-5 comparison
Compare published capabilities, constraints and token costs.
Model comparison
GPT-6 Astra vs Sol vs Luna
Compare the three GPT-6 models using your own workload.
Costs
OpenAI Prompt Caching Calculator
Find out when reusing a prompt prefix saves money.
Costs
OpenAI Token Counter
Count pasted text, reserve room for the answer and estimate its cost.
Access
ChatGPT Dots Availability and Access Checker
Pro users over 18 outside the EEA, UK and Switzerland, plus Business Premium and Enterprise users, have published Dots routes. Check your setup below.
Action rules
ChatGPT Dots Custom Rules Generator
Build ChatGPT Dots custom rules for the actions you care about. Define the people, resources and scope, then copy an editable description and select an action policy.