OpenAI plans to launch its GPT-5.6 lineup next week, including standard, Mini, and Pro variants, with early Pro builds showing stronger long-horizon coding and a 1.5 million token context window. The move targets Anthropic’s top-tier models with aggressive token pricing, and a new bidirectional voice model, GPT-Bidi-1, is set to debut in ChatGPT alongside existing voice features.

• GPT-5.6 (standard, Mini, Pro) expected next Tuesday, with Pro's context window jumping from 1M to ~1.5M tokens and improved long-horizon coding via Codex
• Positioned to undercut Anthropic on price (already ~half Anthropic's token rates) while outperforming Claude Fable 5 on agentic coding tasks, timed to exploit Claude's regulatory troubles in the US
• New bidirectional voice model GPT-Bidi-1 can listen and speak simultaneously, handle interruptions, and adjust tone live, rolling out in ChatGPT with High/Medium/Instant tiers alongside a new draggable voice bubble UI