OpenTahr
Log in

The journal

AI blog on models, prices and news

New models, their prices, what works and what is a waste of money.

A man hanging a key on a pegboard covered with labeled keysAI without a subscription11 min read

BYOK for agencies and how to organize client keys

BYOK for agencies, with one key per client, naming, caps, tracking and honest rebilling, the GDPR and client departures in one operational playbook.

Read the article → A smiling woman handing an envelope directly to another personAI without a subscription10 min read

BYOK data privacy and where your content really goes

BYOK data privacy, from the real path of your content to model training, retention periods, the GDPR and a checklist before you paste your key.

Read the article → A woman weighing pebbles on a brass balance scale at a wooden tableAI without a subscription12 min read

BYOK pros and cons, an honest assessment

BYOK pros and cons laid flat, with five structural strengths, four true limits, the myths debunked in both directions and the typical profiles.

Read the article → A market vendor weighing oranges on an old green scaleAI without a subscription10 min read

Why pay-as-you-go AI is cheaper, with the numbers

Why AI paid by usage costs less than capacity paid in advance, with a typical month worked out, the official levers and the edge cases stated honestly.

Read the article → A man in a plaid shirt reading a sheet of paper in a bright hallwayAI without a subscription13 min read

Subscription vs API key, which one to choose for AI

Subscription vs API key, worked out in figures. Plans at about $20, the API per token, the break-even point by profile, the mixed setup and a three-question decision tree.

Read the article → A woman holding up a single key in her hand against a plain light backgroundAI without a subscription11 min read

What is BYOK in AI, a plain definition

BYOK stands for bring your own key. You plug your own API key into an AI tool and pay for what you really use, with the steps, costs and limits set out plainly.

Read the article → A writer drafting a content brief in a paper notebook before using an AI toolAI without a subscription13 min read

AI writing without a subscription, the BYOK method

Write with your own API key and no subscription. The three pricing models explained, a six-step method and a dated cost per article, with the honest limits.

Read the article → A designer arranging a moodboard of printed images on a wall in her studioAI without a subscription12 min read

A Midjourney alternative with an official image API

Midjourney offers no public API, unofficial gateways put your account at risk and official image APIs charge a few cents per picture, with dated prices to prove it.

Read the article → A designer examining printed AI-generated images spread across a studio tableAI without a subscription13 min read

AI images without a subscription, paid per image

Image APIs bill per picture, from half a cent to about twenty cents. Dated prices, commercial rights and the cases where a free tool does the job.

Read the article → A writer annotating printed pages at her desk while planning content optimizationAI without a subscription13 min read

A Surfer SEO and Frase alternative with no quota

Content briefs and semantic reviews for a few cents with your own API key, set against the dated official prices of Surfer and Frase and the real-time score they keep.

Read the article → A man comparing his bill with his phone while weighing a ChatGPT Plus alternativeAI without a subscription12 min read

ChatGPT Plus alternative, when the API is worth it

ChatGPT Plus at about 23 euros with VAT or the API per token. A break-even calculation with dated assumptions, a comparison table and the cases where the plan wins.

Read the article → A marketing manager rearranging her content plan while looking for another writing toolAI without a subscription12 min read

Copy.ai alternative, write with your own API key

Between the $29 Chat plan and the $1,000 a month platform, BYOK writes the same texts for a few cents. A dated comparison of Copy.ai and your own API key.

Read the article →