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GPT-5.5

2 articles First covered Apr 23, 2026, latest Apr 28, 2026

GitHub Octocat mark on a dark gradient, the cover graphic on the GitHub Blog post announcing the Copilot billing change.

AI·21 hours ago

GitHub Copilot kills premium requests on June 1. Token billing arrives, fallback models do not.

On June 1 every Copilot plan switches to GitHub AI Credits priced per token. Code completions stay free. Fallback models and credit rollover do not.

OpenAI's GPT-5.5 model launch with ChatGPT and Codex interfaces

OpenAI shipped GPT-5.5 seven weeks after 5.4. API tokens now cost twice as much.

OpenAI released GPT-5.5 (codename Spud) on April 23. The API runs at $5/$30 per million tokens, double GPT-5.4, with Pro at $30/$180.