According to @gdb, OpenAI is encouraging developers to try using the Responses API with GPT-5, sharing the note publicly on Aug 19, 2025 (source: @gdb on X, Aug 19, 2025). The post directly indicates GPT-5 can be used via the Responses API, implying immediate developer accessibility through that interface (source: @gdb on X, Aug 19, 2025). No cryptocurrencies or blockchain integrations were mentioned in the post, so any crypto-market impact would stem from broader AI narrative flows rather than direct token tie-ins (source: @gdb on X, Aug 19, 2025).