GPT-5.6 Terra API

gpt-5-6-terraCopy

OpenAICommercial use API verifiedText & reasoning

GPT-5.6 — frontier reasoning and generation through one API.

by OpenAI

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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.