GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://x402engine.app/api/llm/gpt-6-astra' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://x402engine.app/api/llm/gpt-6-astra'
Endpoint: https://x402engine.app/api/llm/gpt-6-astra. Operated by x402engine.app, not by Animica. Price and availability were correct at the last probe on 2026-10-01 and are set by the operator, who may change them.
DeepSeek's re-post-trained V4 Flash revision — substantially enhanced agentic capabilities, coding, and reasoning with 1M context