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GPT-5.6 Terra API pricing

Compare the published GPT-5.6 Terra API list rate with corouter's outlet rate, review context and modalities, and estimate a monthly token bill.

OpenAI
GPT-5.6 Terra
OpenAI
80%
Model ID
gpt-5.6-terra
Context window
1.1M
Vendor
OpenAI
Modalities
ChatReasoningVision
List pricecorouter
Input / Mtok$2.50$0.500
Cached input / Mtok$0.250$0.050
Output / Mtok$15.00$3.00

Prices in USD per million tokens, verified against official pricing pages on 2026-07-29.

Where this model fits

  • Production assistants that mix long context with tool calls
  • Retrieval-augmented answering over long internal corpora
  • Vision-grounded review of screenshots and scanned pages

Estimates only. Actual billing depends on your real token counts, cache hit rate, and the prices in effect at request time.

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