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Access leading AI models

Prepaid credits. Transparent usage, no subscriptions

Pay only for what you use. Top up when you want
Eligible university accounts receive one-time welcome credit. Usage varies by model and reasoning.
A workspace that stays yours: Search your conversations, organize them into folders, and export your work.
Models
GPT-6 Astra
Claude Opus 5.5
Grok 4.7
Maximum thinking with web search enabled on all models
We prioritize quality over speed

Simple by design

From first question to clearer thinking.

01 · Make it yours

One account. Three leading models.

Choose GPT-6 Astra, Claude Opus 5.5 or Grok 4.7. Maximum reasoning and web search are already enabled.

02 · Add only what you need

Top up, then pay for usage.

Your wallet is held in CHF. Choose a local display currency; Stripe confirms the final checkout amount. No subscription.

03 · Keep the useful parts

Compare, organize and come back.

Ask different models the same question, file conversations by project, and download Markdown or JSON copies.

Control your spend

Base prices per 1 million tokens. Charged from your prepaid balance

Reasoning tokens count toward output. Search fees are included in input cost; long conversations may use higher token rates.

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Wallet held in CHF; local amounts are estimates.
Model Input Price Output Price
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One conversation, every model

Switch models mid-conversation

Draft an outline for my thesis introduction
GPT-6 Astra
Here you go: motivation, research gap, contribution, and a roadmap of the chapters
Switched to Claude Opus 5.5
Rewrite it in a more academic tone
Claude Opus 5.5
Done — same outline, now with a formal register. I kept your full context from the previous turns
Switched to Grok 4.7
Fact-check the references against the latest publications
Grok 4.7
Searched the web: two of your references have newer 2026 editions — here are the updated citations

Pick the right tool for every step