AI just got cheaper: what GPT, Claude and Gemini cost right now

This has been a good summer for anyone paying for AI by the token: all three providers Scribara supports have cut their prices. Because the app runs on your own API key — you pay the provider directly, with no markup from us — the savings reach you without any update on our side.

Here is what changed.

OpenAI. On 30 July it cut GPT-5.6 pricing: Luna dropped by 80%, Terra by 20%. These are new list prices with no expiry date.

Anthropic. Claude Sonnet 5 launched at an introductory $2/$10, due to rise on 1 September. On 11 August Anthropic cancelled the increase — that price is now permanent.

Google. Gemini 3.7 Flash arrived on 13 August, and 3.6 Flash was brought down to match it. This is the one deadline in this post: the reduced rate holds until 31 December 2026, and doubles on 1 January.

What it costs today

Prices per million tokens:

What that means for a manuscript

A 3,000-word chapter is roughly 4,000 tokens. Running it through an editing pass costs well under a cent on Luna and about five cents on Sonnet 5. A full 80,000-word novel lands somewhere between $0.15 and $1.50, depending on the model you pick.

Three ways to pay less

• Use a cheap model for routine work — continuing a passage, finding synonyms, drafting descriptions. Save the expensive ones for serious editing.
• Repeated requests with the same context are billed lower: with all three providers, cached input costs 10% of the standard rate.
• Do not push the whole manuscript into a request when you are working on a single chapter. With OpenAI, input roughly doubles past ~272,000 tokens; with Gemini Pro, past 200,000.

You choose the model in the AI settings, in the same place where you pasted your key. The key stays on your computer, and requests go straight to the provider — never through our servers.