DeepSeek's re-post-trained V4 Flash revision — substantially enhanced agentic capabilities, coding, and reasoning with 1M context
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://x402engine.app/api/llm/deepseek-v4-flash-0731' # -> 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/deepseek-v4-flash-0731'
Endpoint: https://x402engine.app/api/llm/deepseek-v4-flash-0731. Operated by x402engine.app, not by Animica. Price and availability were correct at the last probe on 2026-08-31 and are set by the operator, who may change them.
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, …