AnyModelAnyModel
Get started
OpenAI

GPT-6 Astra

OpenAI's most capable model for complex, demanding work.

GPT-6 Astra is OpenAI's flagship reasoning and agentic-coding model: the top of the Codex line for multi-step engineering, deep debugging and long autonomous sessions, with reasoning effort up to max. Pick it when Sol is not enough.

Best for

Codex CLIHard engineering tasksAgents

Strengths

  • ▸Strongest reasoning in the GPT line
  • ▸Complex multi-step coding
  • ▸Reasoning up to max

Use GPT-6 Astra via AnyModel

One OpenAI-compatible endpoint — just set the model id:

curl https://anymodel.org/v1/chat/completions \
  -H "Authorization: Bearer $ANYMODEL_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-6-astra",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
One-line Codex installGet a key