GPT-5.6 Terra API
gpt-5-6-terraOpenAICommercial use API verifiedText & reasoning
GPT-5.6 — frontier reasoning and generation through one API.
by OpenAI
Pricing: Input 54.88 credits / 1M tokens (≈ $0.5488), Output 329.28 credits / 1M tokens (≈ $3.2928). Cached Input 5.49 credits / 1M tokens (≈ $0.0549), Cache Writes 68.6 credits / 1M tokens (≈ $0.686) — applied automatically when the upstream reports cached tokens for your prompt; there is no field to request them.
Save up to 75%with the $1,250 top-up pack (+10% bonus) — 73% lower than direct rates even without itTop up24H Status Monitor
Operational24h agonow
MODEL
gpt-5-6-terra
Tools
Web Search
Web search feeds the results back as input tokens, so a searched turn typically costs many times a normal turn (measured: 6–87×). Billed per token as usual — nothing extra per search.
Stream Response
Start a conversation with GPT-5.6 Terra
Input 54.88 · Output 329.28 cr / 1M · billed per token
You only pay for successful generations — if a task fails or returns no result, its credits are refunded automatically, never charged. And your credits never expire: top up once and spend at your own pace.1 credit = $0.01 USDTop up $1,250 for +10% bonus credits → up to ~9% more off every call.Top up credits
GPT-5.6 Terra API pricing4 prices
Model & ModalityCredits / GenOur Price (USD)Direct / Standard Price (USD)Base savingsSavings with top-up$1,250 top-up · +10% credits
gpt-5.6-terra, chat, Input
textOpenAI
Credits / Gen54.88per million tokens
Our Price (USD)$0.5488
Direct / Standard Price (USD)$2
Base savings−72.6%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-5.6-terra, chat, Output
textOpenAI
Credits / Gen329.28per million tokens
Our Price (USD)$3.2928
Direct / Standard Price (USD)$12
Base savings−72.6%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-5.6-terra, chat, Cache Writes
textOpenAI
Credits / Gen68.6per million tokens
Our Price (USD)$0.686
Direct / Standard Price (USD)$2.5
Base savings−72.6%
Savings with top-up · $1,250 · +10%−75% ↓
gpt-5.6-terra, chat, Cached Input
textOpenAI
Credits / Gen5.49per million tokens
Our Price (USD)$0.0549
Direct / Standard Price (USD)$0.2
Base savings−72.6%
Savings with top-up · $1,250 · +10%−75% ↓
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