Rayrun Implements sPTC to Speed Up AI Responses by 20%

lucgagan · reddit · 2026-08-31

Rayrun released the first MCP gateway implementation of Speculative Programmatic Tool Calling (sPTC). This technique starts calling tools early while the model generates arguments, potentially speeding up responses by 20%. The post provides a code example using the @rayrun/sdk showing how to feed streamed arguments from OpenAI or Anthropic to execute safe reads in parallel, benefiting agents with heavy read operations.

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