gpt-5.6-terra

GPT-5.6 Terra API — price per token

GPT-5.6 Terra is the balanced tier of the GPT-5.6 line — half the flagship token price, with the same reasoning-effort controls and the full 272K context.

Pricing per 1M tokens

RateOfficial OpenAIHere, from (−60%)Here, best (−70%)
Input$2.5$1$0.75
Cached input$0.25$0.1$0.075
Cache write$3.125$1.25$0.938
Output$15$6$4.5

Input

Official OpenAI
$2.5
Here, from (−60%)
$1
Here, best (−70%)
$0.75

Cached input

Official OpenAI
$0.25
Here, from (−60%)
$0.1
Here, best (−70%)
$0.075

Cache write

Official OpenAI
$3.125
Here, from (−60%)
$1.25
Here, best (−70%)
$0.938

Output

Official OpenAI
$15
Here, from (−60%)
$6
Here, best (−70%)
$4.5

Every request is metered at the official rate first, then your progressive B2C discount (60% at the start, up to 70% as cumulative top-ups grow) is subtracted before it touches your prepaid balance. Context window: 272K tokens. Max output: 32K tokens. Reasoning efforts: none, low, medium, high, xhigh, max.

Best for

  • Day-to-day coding and chat at half the flagship price.
  • Agentic workflows where flagship cost is not justified.
  • High-volume production traffic on the OpenAI-compatible API.

Good to know

  • Same reasoning-effort range as the flagship, including max.
  • Text and image input, text output. SSE streaming on both Responses and Chat Completions.
  • Requests above 272K input tokens bill at OpenAI long-context rates: 2× input and 1.5× output on the whole request.

How to use GPT-5.6 Terra

Create a free account, generate one key, and point any OpenAI-compatible tool at https://openai.api.apitoken.sale/v1 with model ID gpt-5.6-terra — Responses and Chat Completions both work, authenticated with Authorization: Bearer. New accounts include $10 of API usage at official prices — enough to test the model before topping up.

Frequently asked questions

How much does the GPT-5.6 Terra API cost?

Officially $2.50 per 1M input tokens and $15 per 1M output tokens, with cached input at $0.25. With the apiToken.sale discount that starts at $1/$6 and reaches $0.75/$4.50.

Terra or Sol?

Terra is the balanced default for most workloads at half the price; route the hardest reasoning to gpt-5.6-sol. Both run on the same key, balance and endpoint.

What is the model ID?

gpt-5.6-terra. Point any OpenAI-compatible client at https://openai.api.apitoken.sale/v1 and send it as the model parameter.

Run GPT-5.6 Terra on the OpenAI-compatible API at up to 70% off — instant key, prepaid balance, card or crypto.