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GPT 6.1 Terra API

Fast GPT-6.1 model for visual reasoning, spatial tasks and natural writing. Text responses and agent tool calling through Responses API.

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Starting at

$1.2

input price per 1M tokens

4 token price options

GPT 6.1 Terra playground

Input

openai
2048
1.0
1.00

Input

$1.2 / 1M

Output

$6 / 1M

Output

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Ask GPT 6.1 Terra anything. Messages are sent directly to the API and charged by token usage.

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GPT 6.1 Terra API pricing

OptionPrice per 1M tokens
input$1.2
output$6
cacheRead$0.06
cacheWrite$1.8

Quick start

Full API reference →
1curl -X POST https://api.api-stock.com/api/v1/chat/completions \
2  -H "Authorization: Bearer $API_STOCK_KEY" \
3  -H "Content-Type: application/json" \
4  -d '{
5    "model": "gpt-6.1-terra",
6    "messages": [
7      {
8        "role": "user",
9        "content": "A cinematic shot of a city at dusk"
10      }
11    ]
12  }'

Frequently asked questions

How much does GPT 6.1 Terra cost?

GPT 6.1 Terra starts at $1.2 per 1M input tokens on API Stock. The final charge depends on the selected settings.

When was GPT 6.1 Terra released?

GPT 6.1 Terra was released on October 26, 2026 and is available through API Stock.

How do I get an API key for GPT 6.1 Terra?

Create an account and API key on API Stock, then fund your balance. The same key works with GPT 6.1 Terra and other catalog models.

How do I call the GPT 6.1 Terra API?

Send a POST request to https://api.api-stock.com/api/v1/chat/completions with your API key and the model "gpt-6.1-terra", using the openai-compatible request format shown in the quick start above.

What happens if a GPT 6.1 Terra request fails?

API Stock automatically retries the request on a reserve provider. If every provider fails, the charge is refunded to your balance.

Can I use GPT 6.1 Terra with the same API key as other models?

Yes. Use your API Stock API key and balance for GPT 6.1 Terra and other catalog models.

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