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Sign in to access your balance across Android, desktop, and terminal: one quota, three surfaces.
Setting up your Expert AI account…
ChatGPT
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Haiku 4.5
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Sonnet 5
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This cycle
Since Sept 13, 2026
Do not submit malicious code, scripts, or attempts to manipulate the system. Submissions may be logged and reported to the relevant authorities.
ChatGPTLuna · always available
4.05M
ClaudeHaiku 4.5 · everyday default
1.30M
ClaudeSonnet 5 · hard tasks or "review"
186K
Your three model pools above, plus the unlimited Expert AI free-tier fallback once your paid balance runs out.
A private connector link for the AEC knowledge base: ~500 folders of building codes & standards, cited to source. 10 free searches a day, no card needed.
- Open Claude → Settings → Connectors → Add custom connector.
- Paste your private URL and save.
- Ask about any building code or standard, or start with "aec …".
Get a private connector link for the AEC knowledge base: 10 free searches a day, cited to source, no card needed.
- Open Claude → Settings → Connectors → Add custom connector.
- Paste the URL above and save.
- Ask about any building code or standard, or start with "aec …".
Keep this URL private: it's your key.
A tool call adds only a few hundred tokens to a message, not a separate charge on top of it. On the ≈₹860 Expert tier's roughly 1M paid tokens (before its own unlimited fallback kicks in), that's easily 1,500 to 2,000 ordinary chats, each free to reach for a calculator, weather check, or web search along the way.