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Chat & reasoning

GPT-5.6 Terra

Balanced GPT-5.6 tier — matches GPT-5.5 quality (AA Intelligence Index 55) at roughly half the cost, tuned for everyday professional work.

Start requirement: From 1 credit

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Context
1.1M
Type
Chat & reasoning
Reasoning
Configurable
Streaming
Yes

Capabilities

StreamingReasoningTool useWeb searchVisionDocuments

Pricing

Input$5 / 1M tokens
Cached input$0.5 / 1M tokens
Cache write$6.25 / 1M tokens
Output$30 / 1M tokens
Web search (when used)$20 / 1,000 calls

List prices plus 100%. Higher reasoning effort can consume more output tokens; it has no separate fixed multiplier. One credit equals 1¢ charged, with a one-credit minimum per completed run and the aggregate rounded up once.

Provider pricing source · verified 2026-07-20

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GPT-5.6 Terra: frequently asked questions

What is GPT-5.6 Terra?
Balanced GPT-5.6 tier — matches GPT-5.5 quality (AA Intelligence Index 55) at roughly half the cost, tuned for everyday professional work. You can try GPT-5.6 Terra on TryAI without a separate provider account.
How much does GPT-5.6 Terra cost on TryAI?
GPT-5.6 Terra uses these rates (provider list price plus 100%): Input: $5 / 1M tokens, Cached input: $0.5 / 1M tokens, Cache write: $6.25 / 1M tokens, Output: $30 / 1M tokens, Web search (when used): $20 / 1,000 calls. One TryAI credit equals one cent charged; completed runs have a one-credit minimum and the aggregate cost is rounded up once.
What can GPT-5.6 Terra do?
GPT-5.6 Terra supports Streaming, Reasoning, Tool use, Web search, Vision, Documents with a context window of about 1.1M tokens.
How do I try GPT-5.6 Terra?
Create a free TryAI account, pick GPT-5.6 Terra from the model selector, and start generating in seconds.

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