Chat01.ai

Direct access to OpenAI's o1 models costs money, and that keeps many people from trying them. Chat01.ai is a free AI chatbot and code assistant that gives you a web chat built on o1 models, used for coding help, math, translation, PDF summaries, image generation and search.

The free plan is small: 2 credits per day and one question per minute.

Inviting friends unlocks extras, with continued asking at 3 invites and hidden Q&A at 8.

Paid plans remove the question rate limit.

Starter is $9.99 a month for 30 credits per day, Basic is $19.99 for 100, and Pro is $39.99 for 300 plus priority customer support.

Every paid plan includes o1 vision and o1-pro models.

Prefer not to subscribe? Chat01.ai also sells credit packages as one-off purchases, and the credits do not expire: 200 for $9.99, 500 for $19.99, and 3000 for $79.99.

Light users will probably get better value from those packages than from a monthly plan.