OpenAI Launches GPT-5.5 at Double GPT-5.4's API Pricing
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- OpenAI launched GPT-5.5, designed to handle complex tasks with minimal guidance, with the model set to power the company's upcoming 'super app' (per Bloomberg).
- GPT-5.5 is priced at $5 per million input tokens and $30 per million output tokens — double GPT-5.4's pricing — while the GPT-5.5 Pro tier costs $30 and $180 per million input and output tokens respectively (per VentureBeat's Carl Franzen).
- GPT-5.5 is codenamed 'Spud' and signals a shift to faster model release cadence at OpenAI, with multiple outlets flagging the accelerated pace (per The Information, Fortune, Key Context).
- Codex on GPT-5.5 gains a new 'Auto-review' mode for longer autonomous work and improved computer-use capabilities, including clicking, typing, and navigating apps (per @openaidevs).
- Early testers reported striking autonomy: @tszzl said researchers let GPT-5.5 run overnight experiment sweeps from a high-level idea and woke to completed dashboards, while @emollick called the Pro version 'very good.'
- Greg Brockman described GPT-5.5 as 'a new class of intelligence' that is token-efficient, low-latency, and requires less micromanagement, and @jonathanross321 noted it was trained on Nvidia GB200 NVL72 systems.
Why it matters: GPT-5.5 doubles GPT-5.4's API pricing, with the Pro tier reaching $180 per million output tokens — a concrete cost increase for developers building on OpenAI's API. Multiple outlets also report OpenAI is explicitly moving to a faster model release pace, meaning the premium buyers pay for the newest version may have a shorter useful window.
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