OpenAI-compatible chat completion, priced by counted input tokens + max output tokens at per-model rates
APIx402
Declared: 0.001023 USDC / call (eip155:8453); 1023 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 1023 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 1023 atomic units of 0x3600000000000000000000000000000000000000 (eip155:5042)
x402engine — OpenAI's efficient flagship model — strong all-around performance at lower cost than GPT-5.2
APIx402
Declared: 0.025537 USDC / call (eip155:8453); 25537000000000000 atomic units of 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 (eip155:4326); 25537 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
x402engine — OpenAI's premium reasoning model — extended thinking for complex math, science, and coding problems
APIx402
Declared: 0.406434 USDC / call (eip155:8453); 406434000000000000 atomic units of 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 (eip155:4326); 406434 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
x402engine — OpenAI's SOTA agentic coding model — best-in-class for software engineering and code generation
APIx402
Declared: 0.035179 USDC / call (eip155:8453); 35179000000000000 atomic units of 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 (eip155:4326); 35179 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
x402engine — OpenAI's maximum-compute GPT-5.6 tier for the hardest agent tasks
APIx402
Declared: 0.059093 USDC / call (eip155:8453); 59093000000000000 atomic units of 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 (eip155:4326); 59093 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)
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