HacxGPT
Lightning Flash

System overview

HacxGPT Lightning Flash is the entry point to the platform: a single-pass model tuned for latency and cost rather than deliberation. It behaves like a frontier small model — fast completion, dependable formatting, zero moralizing — at a rate that makes always-on pipelines practical.

Flash skips the extended thinking stage entirely, so it is the wrong tool for deep multi-step research and the right tool for everything that runs more than a thousand times a day.

Unrestricted capabilities

Make the call

curl https://api.hacxgpt.com/v1/chat/completions \
  -H "Authorization: Bearer $HACX_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "lightning-flash",
    "reasoning_effort": "medium",
    "messages": [{"role": "user", "content": "..."}]
  }'