GPT-5.5 Doubles Token Prices Over GPT-5.4, Hitting Users With Up to 92% Higher Real-World Costs
Summary
OpenAI's GPT-5.5 launches with doubled token prices over GPT-5.4, driving real-world cost increases of up to 92% for users, though longer prompts see partial relief as the model generates significantly fewer completion tokens.
Key Points
- GPT-5.5 launches with a 2x price hike over GPT-5.4, raising input tokens from $2.50/M to $5.00/M and output tokens from $15/M to $30/M.
- Real-world cost analysis of users who switched from GPT-5.4 to GPT-5.5 reveals actual cost increases ranging from 49% to 92%, depending on prompt size.
- For prompts over 10K tokens, GPT-5.5 partially offsets costs by generating 19-34% fewer completion tokens, but shorter prompts see little to no reduction in output length, resulting in steeper cost increases.