HacxGPT
Lightning 1.1

System overview

Lightning 1.1 is the updated release of the Lightning series — refined expert routing, better instruction adherence, and materially higher scores across every published benchmark, at identical pricing.

It keeps what made Lightning useful: a 256K context window, four reasoning levels, and no alignment filter between your prompt and the model's full capability.

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-1.1",
    "reasoning_effort": "medium",
    "messages": [{"role": "user", "content": "..."}]
  }'

Performance metrics

Published scores against frontier peers. Highlighted bars are ours.