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OpenAI

GPT-6.1 Terra

Fast, efficient GPT-6.1 for visual reasoning, computer use and natural writing.

GPT-6.1 Terra is the successor to GPT-5.6 Terra, released by OpenAI in October 2026: a fast, efficient model for visual reasoning, precise computer use and clear, natural writing, at half the vendor price of GPT-6.1 Sol, with reasoning effort up to max. An everyday pick for writing, visual work and computer-use agents; for the most complex coding, reach for GPT-6.1 Sol or GPT-6 Astra.

Best for

Codex CLIComputer-use agentsEveryday writing

Strengths

  • ▸Visual reasoning
  • ▸Precise computer use
  • ▸Clear, natural writing

Use GPT-6.1 Terra 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-6.1-terra",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'
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