GPT-5.6 Terra API pricing

Call gpt-5.6-terra through RouterPlex's OpenAI-compatible API — vendor list price, 0% markup, billed per token from a prepaid balance. No subscription required.

Input / 1M tokens
$2.50
Output / 1M tokens
$15.00
Context window
258K
Provider
OpenAI

Use it in one request.

curl https://api.routerplex.com/v1/chat/completions \
  -H "Authorization: Bearer $ROUTERPLEX_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.6-terra",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Works with any OpenAI SDK or tool — just change the base URL. See the quickstart.

Common questions.

How much does the GPT-5.6 Terra API cost?

Through RouterPlex, GPT-5.6 Terra costs $2.50 per 1M input tokens and $15.00 per 1M output tokens — the vendor list price with 0% markup, billed per token from a prepaid balance you top up from $5.

What is the context window of GPT-5.6 Terra?

GPT-5.6 Terra supports a 258K token context window on RouterPlex.

Can I use GPT-5.6 Terra with the OpenAI SDK?

Yes. RouterPlex serves GPT-5.6 Terra through an OpenAI-compatible endpoint at https://api.routerplex.com/v1 — point any OpenAI SDK or tool at that base URL with your RouterPlex key and set model to "gpt-5.6-terra".

Try GPT-5.6 Terra in minutes.

Top up from $5, or see all model pricing and plans.

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GPT-5.6 Terra API Pricing · RouterPlex