x402engine — OpenAI's efficient flagship model — strong all-around performance at lower cost than GPT-5.2
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.03 USDC | 0x7dd5...2629 |
| eip155:4326 | exact | 0.025537 tokens | 0x7dd5...2629 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.03 tokens | Gzehfs...QQWa |